https://community.element14.com/challenges-projects/project14/w/documents/8642/project14-acoustics-meet-the-projects-that-involve-or-explore-sounden-USTelligent Community 12https://community.element14.com/challenges-projects/project14/w/documents/8642/project14-acoustics-meet-the-projects-that-involve-or-explore-soundThu, 26 Mar 2020 03:47:11 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:ff055299-26eb-4378-af57-c3a4554870e2tariq.ahmadhttps://community.element14.com/challenges-projects/project14/w/documents/8642/project14-acoustics-meet-the-projects-that-involve-or-explore-sound#commentsCurrent Revision posted to Documents by tariq.ahmad on 3/26/2020 3:47:11 AM<br /> <div style="border:1px solid #9EA900;margin:0px;"><table cellpadding="0" cellspacing="0" style="background-color:#f4f4f2;padding:0px;margin:0px;width:100%;"><tbody><tr><td rowspan="3" style="padding:6px 15px 6px 12px;"><a href="/challengesprojects/project14/"><img alt="image" src="/e14/assets/legacy/2017/project14_logodoc.png" style="vertical-align:top;" /></a></td><td rowspan="3" style="padding:6px 12px 8px 0px;"><p style="margin:0;font-size:18px;font-weight:bold;padding-bottom:4px;"><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/project14/acoustics/">Acoustics</a></p><p style="margin:0;padding-bottom:6px;line-height:17px;"><strong>Enter Your Electronics &amp; Design Project</strong> for a chance to win an $200 Shopping cart of product!</p><p style="margin:0;"><a href="/challengesprojects/project14/">Back to The Project14 homepage <img loading="lazy" alt="image" src="/e14/assets/legacy/gen/LinkArrow.gif" /></a></p></td><td style="padding:10px 12px;vertical-align:middle;background-color:#9ea900;" width="24%"><a class="jivecontainerTT-hover-container jive-link-community-small" href="/challengesprojects/project14/"><span style="font-size:12px;color:#ffffff;"><strong>Project14 Home</strong></span></a></td></tr><tr><td style="padding:10px 12px;vertical-align:middle;background-color:#767e00;"><span style="color:#dceb93;text-decoration:none;font-size:12px;"><a class="jive-link-wiki-small" href="/challenges-projects/project14/w/documents/3370/project14-project-competition-events-trophies-timetable-projected-and-historical-timelines"><span style="color:#ffffff;text-decoration:none;font-size:12px;"><strong>Monthly Themes</strong></span></a></span></td></tr><tr><td style="padding:10px 12px;vertical-align:middle;background-color:#596000;"><a class="jive-link-wiki-small" href="/challenges-projects/project14/w/documents/20670/project14-you-decide-the-next-monthly-project-competition"><span style="color:#ffffff;text-decoration:none;font-size:12px;"><strong>Monthly Theme Poll</strong></span></a></td></tr></tbody></table></div><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="font-size:16px;font-weight:bold;">There&#39;s still time to submit your&nbsp; </span><span style="font-size:16px;font-weight:bold;">project!</span></p><p style="margin:0;padding:0px;">&nbsp;</p><ul><li><span style="color:#333333;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;">Build projects <span style="color:#333333;font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;">that i</span><span style="font-family:Arial, &#39;Lucida Grande&#39;, sans-serif;color:#333333;">nvolve or explore infrasound, audible sound, ultrasound, amplifiers, piezoelectric material, spectrum analyzers, and more! </span></span></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><h2><span style="color:#2873ee;">Submit your project from now until anytime on March 16th to have your project featured here!</span></h2><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;">You will be judged on the basis of the following criteria:</p><p style="margin:0;padding:0px;">&nbsp;</p><ul><li><span style="font-weight:bold;font-style:inherit;font-family:inherit;">Follow the Steps</span> - Did they provide the steps it took to complete the project (text, video, or images) and/or schematics.</li><li><span style="font-weight:bold;font-style:inherit;font-family:inherit;">Submit Video Proof</span> - Did they post a video proof of their project?</li><li><span style="font-weight:bold;font-style:inherit;font-family:inherit;">Stick to the Theme</span> - How well did the project stick to the theme of the competition?</li><li><span style="font-weight:bold;font-style:inherit;font-family:inherit;">Demonstrate Originality</span> - Did they come up with a clever name for their project? Or did they introduce something new or that is not commercially available?</li></ul><p style="margin:0;padding:0px;">&nbsp;</p><h1><span style="color:#3334ca;">The Projects:</span></h1><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/amazing-bass-homebrew-audio-system-for-a-raspberry-pi-retro-gaming-console">&quot;Amazing Bass&quot; homebrew audio system for a Raspberry Pi Retro-gaming console</a>&nbsp; by <span><a href="/members/robogary">robogary</a></span>:</h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Raspberry Pi &quot;Amazing Bass&quot; homebrew audio system for a Raspberry Pi Retro-gaming console</strong></th></tr></thead><tbody><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/583x282/__key/communityserver-wikis-components-files/00-00-00-02-95/7282.contentimage_5F00_132822.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7282.contentimage_132822.png-583x282.png?sv=2016-05-31&amp;sr=b&amp;sig=yVJ%2Fuu8NCflZwGntZDumCoB70DExmFPWWUd6FCgMBl8%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=A8JC2FCTP3rbZhEVem/KHQ==" style="max-height: 282px;max-width: 583px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/380x165/__key/communityserver-wikis-components-files/00-00-00-02-95/2577.contentimage_5F00_132823.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2577.contentimage_132823.png-380x165.png?sv=2016-05-31&amp;sr=b&amp;sig=J6bVFby7rLPl4dyQeuAoZVPH5bT1gsL%2F9d4%2FozA87R4%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Qf8MT647ep2PcBbeInqlXQ==" style="max-height: 165px;max-width: 380px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/392x405/__key/communityserver-wikis-components-files/00-00-00-02-95/0434.contentimage_5F00_132824.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0434.contentimage_132824.png-392x405.png?sv=2016-05-31&amp;sr=b&amp;sig=DvjCZNVqOkOhjUrvYq4PsdBzgaQ%2BvFnwNRaEOgH3MZc%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=/lezt5ivu25SodeStfy8IA==" style="max-height: 405px;max-width: 392px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/624x393/__key/communityserver-wikis-components-files/00-00-00-02-95/8666.contentimage_5F00_132825.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8666.contentimage_132825.png-620x390.png?sv=2016-05-31&amp;sr=b&amp;sig=XH2YYADeulSiCI6h1i8DSJcXbC0AVUTahieFZuR6ccQ%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=75nAQibReK57evuYjO0xvA==" style="max-height: 390px;max-width: 620px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="dc391c41_1db5_4fd7_b032_5a04843ddc85"><span><a href="https://www.youtube.com/watch?v=VMbXvmfE1Uo">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/boogie-bones">Boogie Bones</a>&nbsp; by <span><a href="/members/bigg">BigG</a></span>:</h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Boogie Bones</strong></th></tr></thead><tbody><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/311x415/__key/communityserver-wikis-components-files/00-00-00-02-95/8688.contentimage_5F00_132827.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8688.contentimage_132827.jpg-311x414.jpg?sv=2016-05-31&amp;sr=b&amp;sig=SRlv90It1Eed9%2F7y%2BI%2FYXcwDQT8QSoZrgVxTEFxnfeg%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=9sywZmJJSOV7v2/BthiCOA==" style="max-height: 414px;max-width: 311px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/497x244/__key/communityserver-wikis-components-files/00-00-00-02-95/5545.contentimage_5F00_132828.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5545.contentimage_132828.jpg-497x244.jpg?sv=2016-05-31&amp;sr=b&amp;sig=5wKFropBCTm4qb61jKqHM9%2FnScntXukQAP2OQCXEtO4%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=xKGm2DscwT7bOm4XiWNHcw==" style="max-height: 244px;max-width: 497px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/402x302/__key/communityserver-wikis-components-files/00-00-00-02-95/3482.contentimage_5F00_132829.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3482.contentimage_132829.jpg-402x301.jpg?sv=2016-05-31&amp;sr=b&amp;sig=V7DIV7TU5idZ%2FvOfAmZAAolXdfWdn6NJ6SstqONvl6Q%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=dM4hq/2qSnv0X0J4iqpUfg==" style="max-height: 301px;max-width: 402px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/396x299/__key/communityserver-wikis-components-files/00-00-00-02-95/1348.contentimage_5F00_132830.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1348.contentimage_132830.png-396x298.png?sv=2016-05-31&amp;sr=b&amp;sig=d7hDC3GcEZxJzo59nlBxDiNutpcfKqmlgEIlRxU3d3A%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=i7+X6B+WLFFQinL4EhAWIg==" style="max-height: 298px;max-width: 396px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="b522cbce_2fe0_4ef8_88fb_d657d962d358"><span><a href="https://www.youtube.com/watch?v=NC5HfkRY6Fg">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span style="font-size:24px;font-weight:bold;"><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/screaming-lm386-an-audio-amplifier-with-pcb-art">Screaming LM386:&nbsp; An Audio Amplifier with PCB Art</a>&nbsp; by <span><a href="/members/fmilburn">fmilburn</a></span>:</span></p><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Screaming LM386: An Audio Amplifier with PCB Art</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/407x345/__key/communityserver-wikis-components-files/00-00-00-02-95/8204.contentimage_5F00_132832.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8204.contentimage_132832.jpg-407x344.jpg?sv=2016-05-31&amp;sr=b&amp;sig=12v%2FcD6LfCK4ZBtP2gNhPBFOB0cuQrTVLKgNFr76SQw%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=c0fQnGVDQ36dtmhbhEx/HA==" style="max-height: 344px;max-width: 407px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/334x351/__key/communityserver-wikis-components-files/00-00-00-02-95/1423.contentimage_5F00_132833.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1423.contentimage_132833.jpg-334x351.jpg?sv=2016-05-31&amp;sr=b&amp;sig=ngxSb4AYpDMUYsHvGwLPb5qqTd1LzJyZMzLlcR4N5cE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=HPPSwI+8BVcGbn1ibzzpKw==" style="max-height: 351px;max-width: 334px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/403x305/__key/communityserver-wikis-components-files/00-00-00-02-95/8360.contentimage_5F00_132834.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8360.contentimage_132834.jpg-403x304.jpg?sv=2016-05-31&amp;sr=b&amp;sig=tNK0HAMYnTMnGM%2BzAmNkgCukoHFYakMxE1Mv40GG8CE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=qXaeQAaAGoDrL8lRHLzBtg==" style="max-height: 304px;max-width: 403px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/452x301/__key/communityserver-wikis-components-files/00-00-00-02-95/5226.contentimage_5F00_132835.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5226.contentimage_132835.jpg-452x301.jpg?sv=2016-05-31&amp;sr=b&amp;sig=RN4fIrNeHVUDoG8cmIse1OmaYNf4Lp7JsPG3REwd%2FQ4%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=OIaKgj/Ujwl/WXDTedVIlg==" style="max-height: 301px;max-width: 452px;" /></a></span></td></tr></tbody></table><p style="margin:0;"><span id="b3e3a26c_c92b_430c_a7d0_c12a845974e8"><span><a href="https://www.youtube.com/watch?v=udm_izxpXhY">www.youtube.com/watch</a></span></span></p><h2></h2><h2><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/audio-project-agony-box">Audio project: Agony Box</a> by <span><a href="/members/cypresstwist">cypresstwist</a></span>:</h2><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Audio project: Agony Box</strong></th></tr></thead><tbody><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/452x252/__key/communityserver-wikis-components-files/00-00-00-02-95/3173.contentimage_5F00_132837.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3173.contentimage_132837.png-452x252.png?sv=2016-05-31&amp;sr=b&amp;sig=ku%2Bw1XhjcBJ1aUjba%2FaQ3j8Lb6qhcB86MPgHB4VmLPU%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=PWd36wjz+7AanH8MQXixYA==" style="max-height: 252px;max-width: 452px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/469x261/__key/communityserver-wikis-components-files/00-00-00-02-95/3005.contentimage_5F00_132838.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3005.contentimage_132838.png-469x260.png?sv=2016-05-31&amp;sr=b&amp;sig=WW1%2FbSaZE7dDWK3smFKko7%2Fais%2BmiQ8eCNCN8O6JR9Y%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=gQ2yxjZv4u19DRUSzYnNgQ==" style="max-height: 260px;max-width: 469px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="7f63dbb5_4922_4d18_b972_045a58f37178"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6139333293001">players.brightcove.net/.../index.html</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h2><a class="jive-link-blog-small" href="https://www.element14.com/community/people/phoenixcomm/blog/2020/02/10/nexgen-faa-nav-aid-station-software-design-overview">Nexgen: FAA Nav Aid Station Software Design Overview</a>&nbsp; by <span><a href="/members/phoenixcomm">phoenixcomm</a></span> </h2><ul><li><h2><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/nexgen-faa-nav-aid-station-morse-code-id">Nexgen: FAA Nav Aid Station Morse Code ID</a></h2></li><li><h2><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/nexgen-faa-nav-aid-station-slant-range-math">Nexgen: FAA Nav Aid Station Slant Range Math</a></h2></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong> Nexgen: FAA Nav Aid Station</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/419x314/__key/communityserver-wikis-components-files/00-00-00-02-95/4666.contentimage_5F00_132840.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4666.contentimage_132840.jpg-419x314.jpg?sv=2016-05-31&amp;sr=b&amp;sig=E7pYg8khOiUiJvRSPnp6ATmzyUdiXFHmohiD1DdBomQ%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Cy5qpenavJePS+zA+1APiQ==" style="max-height: 314px;max-width: 419px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/400x306/__key/communityserver-wikis-components-files/00-00-00-02-95/8666.contentimage_5F00_132841.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8666.contentimage_132841.jpg-400x306.jpg?sv=2016-05-31&amp;sr=b&amp;sig=TelVqFtTWVmD26eilfDeiBIIUtj1kUg%2FQ7Dpn2mkgdM%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=z/OgvfoHOUmYan7zTyuvFg==" style="max-height: 306px;max-width: 400px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/200x400/__key/communityserver-wikis-components-files/00-00-00-02-95/6523.contentimage_5F00_132842.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6523.contentimage_132842.png-200x400.png?sv=2016-05-31&amp;sr=b&amp;sig=n6%2BnwXUmmsrIt7jaeH4k6ai3USk2KT5%2FC9VHKsp5GRY%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=+nT6lTCRZ+mhb9RkJVAeDw==" style="max-height: 400px;max-width: 200px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/400x170/__key/communityserver-wikis-components-files/00-00-00-02-95/4478.contentimage_5F00_132843.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4478.contentimage_132843.png-400x170.png?sv=2016-05-31&amp;sr=b&amp;sig=OXRZigZizoRX8dZU5DBCsGWdfIwK64ag4i9IqIjxpJE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=bVeDTqNhEidBLBCojqqWCA==" style="max-height: 170px;max-width: 400px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/1dultrabot-1-getting-started">1DUltraBot #1 : Getting Started</a>&nbsp; by <span><a href="/members/dubbie">dubbie</a></span></h1><ul><li><h2><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/1dultrabot-part-2-the-chassis-is-moving">1DUltraBot : Part 2 : The Chassis is Moving</a></h2></li><li><h2><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/1dultrabot-3-finished-and-working">1DUltraBot #3 : Finished (and working!)</a></h2></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>1DUltraBot</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/466x348/__key/communityserver-wikis-components-files/00-00-00-02-95/7612.contentimage_5F00_132844.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7612.contentimage_132844.jpg-466x348.jpg?sv=2016-05-31&amp;sr=b&amp;sig=oCl35VkHVdtikVFC%2Famd%2B3x9ExRK1tXQXzyiYoFn03o%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=BDe7fX+HFQdhVY5p+B6d+A==" style="max-height: 348px;max-width: 466px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/457x341/__key/communityserver-wikis-components-files/00-00-00-02-95/6116.contentimage_5F00_132845.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6116.contentimage_132845.jpg-456x341.jpg?sv=2016-05-31&amp;sr=b&amp;sig=VAFS4hoGPF2j3sVknr3njpMXOn%2B4qcsGBTe5xs6kCto%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=GpYaK+b6Dv/nx2HX4YvYuw==" style="max-height: 341px;max-width: 456px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/463x346/__key/communityserver-wikis-components-files/00-00-00-02-95/4062.contentimage_5F00_132846.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4062.contentimage_132846.jpg-463x345.jpg?sv=2016-05-31&amp;sr=b&amp;sig=lGbaWAOHEa7ax9BX0vY0k8GupZj6Lh7HuYxyH9Hy72M%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=1n8Lc1U+Ja9OKYcQ9Z3kZg==" style="max-height: 345px;max-width: 463px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="42d2e645_c06c_433c_9bd6_40889de50be4"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6139339706001">players.brightcove.net/.../index.html</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1> <a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/the-pi-rotary">The Pi Rotary</a>&nbsp; by <span><a href="/members/balearicdynamics">balearicdynamics</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>The Pi Rotary</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/481x320/__key/communityserver-wikis-components-files/00-00-00-02-95/5633.contentimage_5F00_132848.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5633.contentimage_132848.jpg-481x320.jpg?sv=2016-05-31&amp;sr=b&amp;sig=k9VWRAeAoObrfUbehbU536IArqsJohRGYL%2BGOEG4F8w%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=XFfElSy9zTre11R1Yo+h9g==" style="max-height: 320px;max-width: 481px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/424x318/__key/communityserver-wikis-components-files/00-00-00-02-95/8765.contentimage_5F00_132849.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8765.contentimage_132849.jpg-424x318.jpg?sv=2016-05-31&amp;sr=b&amp;sig=N0TvPtkhpTP2mpkPmS49zYr6WnVmX5Uj8K6b4Lhfl18%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=oMKI2mWT5wyZTovwHrvUlw==" style="max-height: 318px;max-width: 424px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/480x360/__key/communityserver-wikis-components-files/00-00-00-02-95/6622.contentimage_5F00_132850.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6622.contentimage_132850.jpg-480x360.jpg?sv=2016-05-31&amp;sr=b&amp;sig=mXKmxJR%2Fw4l2Xfn6bEf4JQo043A7N6sPKTHo0BuilmI%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=uxeKEmpQSfG/biU17MVo1Q==" style="max-height: 360px;max-width: 480px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/356x345/__key/communityserver-wikis-components-files/00-00-00-02-95/7282.contentimage_5F00_132851.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7282.contentimage_132851.jpg-356x345.jpg?sv=2016-05-31&amp;sr=b&amp;sig=ynNj3P2GUNXLv3LkSc5UcYGkGcknQL%2Bw1U%2BEjmtkXYY%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Jbr4cthyWg4r6HiUyGIZyg==" style="max-height: 345px;max-width: 356px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="260831a1_49aa_4a09_a71a_ee173d9601c9"><span><a href="https://www.youtube.com/watch?v=tjRsTqljtQY">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><span>The specified item was not found.</span>&nbsp; by <span><a href="/members/sjmill01">Sean_Miller</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>The Ultrasonic Owl Orb of Protection</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/600x291/__key/communityserver-wikis-components-files/00-00-00-02-95/8863.contentimage_5F00_132853.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8863.contentimage_132853.png-600x291.png?sv=2016-05-31&amp;sr=b&amp;sig=%2BdW7eyXKrUjAjWvxAbiQqK8pbcf7MuF7YB%2BpnJNMJy0%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=rra5KUdU07zYkKCZ6K40aA==" style="max-height: 291px;max-width: 600px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/321x291/__key/communityserver-wikis-components-files/00-00-00-02-95/0434.contentimage_5F00_132854.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0434.contentimage_132854.png-321x291.png?sv=2016-05-31&amp;sr=b&amp;sig=mRFvm2YuhQhHfQKMPdHth0yKq2PaqLv3%2BeqMvh4iFoQ%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=mfOEH9l+lROJSTFGWPwGGA==" style="max-height: 291px;max-width: 321px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/495x335/__key/communityserver-wikis-components-files/00-00-00-02-95/5732.contentimage_5F00_132855.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5732.contentimage_132855.png-495x334.png?sv=2016-05-31&amp;sr=b&amp;sig=pPslbRRNtG9lKV6J5DojhXMskHLIpAMNFWdgTCmZEpU%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=ct5Q7pAD/esSs+cUvtJWcw==" style="max-height: 334px;max-width: 495px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/374x332/__key/communityserver-wikis-components-files/00-00-00-02-95/3808.contentimage_5F00_132856.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3808.contentimage_132856.png-374x331.png?sv=2016-05-31&amp;sr=b&amp;sig=sAORctZkJnL3Ph1m1n86wDrhEV1L2RPu1D1rI%2Fcu2QA%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=LcqcTDVSJUXBZ1gp255cOw==" style="max-height: 331px;max-width: 374px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="379a43e8_279e_42e7_ae68_e3f818778a2a"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6141544618001">players.brightcove.net/.../index.html</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="https://www.element14.com/community/people/lui_gough/blog/2020/03/06/it-sa-me-oscilloscope-making-music-with-a-scope">It’sa me, Oscilloscope! - Making Music with a &#39;scope?</a>&nbsp; by <span><a href="/members/lui_5f00_gough">Gough Lui</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>It&#39;sa me, Oscilloscope - Making Music with a &#39;scope?</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/443x249/__key/communityserver-wikis-components-files/00-00-00-02-95/4478.contentimage_5F00_132858.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4478.contentimage_132858.png-443x249.png?sv=2016-05-31&amp;sr=b&amp;sig=Ghv5K%2FZSfCIrM1NluJ3TnSYVipoV3Mo2km61MCEHUvc%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=kp7nPXXakrIDYNMPae8WRA==" style="max-height: 249px;max-width: 443px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/449x252/__key/communityserver-wikis-components-files/00-00-00-02-95/5040.contentimage_5F00_132859.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5040.contentimage_132859.png-449x252.png?sv=2016-05-31&amp;sr=b&amp;sig=ppZe0Hofm%2FZ4cPaVOj%2BBydxZMzaHE3otz%2BKCDJpMt60%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=poGIwxcq5Fc98Fxp4hb42g==" style="max-height: 252px;max-width: 449px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="2c9bac0e_cf18_4fe4_96e6_29fe61700232"><span><a href="https://www.youtube.com/watch?v=M3hrtAcoyvI">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/synthetic-mains-hum-noise">Synthetic Mains Hum Noise</a> by <span><a href="/members/neuromodulator">neuromodulator</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Synthetic Mains Hum Noise</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/433x325/__key/communityserver-wikis-components-files/00-00-00-02-95/1348.contentimage_5F00_132861.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1348.contentimage_132861.png-433x324.png?sv=2016-05-31&amp;sr=b&amp;sig=jho8toP5An%2FgJf0JKNC8PFzhNEn7wvfrxieSCudXe2s%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=QyvJ2H/tKhVngyhSDiZatQ==" style="max-height: 324px;max-width: 433px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/406x305/__key/communityserver-wikis-components-files/00-00-00-02-95/8204.contentimage_5F00_132862.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8204.contentimage_132862.png-406x304.png?sv=2016-05-31&amp;sr=b&amp;sig=O3X%2BhI4orKlz%2FCOvY0mmcfzlgOMm3rxla%2BLwpsLceXw%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=m+/mgNWzOMOQmTbieYheKQ==" style="max-height: 304px;max-width: 406px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/440x330/__key/communityserver-wikis-components-files/00-00-00-02-95/1423.contentimage_5F00_132863.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1423.contentimage_132863.png-440x330.png?sv=2016-05-31&amp;sr=b&amp;sig=YegpybOBSzoHaeb3XYwfhYM8DCeq%2BocigiQoGvSR8RE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=VYTwV/2NhXKGXbYLp3GqrQ==" style="max-height: 330px;max-width: 440px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="1555ee2d_a92c_4611_8fe8_42bac23c45e3"><span><a href="https://www.youtube.com/watch?v=YA6ziNSYQV4">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="https://www.element14.com/community/people/lui_gough/blog/2020/03/07/itsa-me-power-supply-making-music-with-a-psu">It&#39;sa me, Power Supply! - Making Music with a PSU?</a>&nbsp; by <span><a href="/members/lui_5f00_gough">Gough Lui</a></span></h1><ul><li><h2><a class="jive-link-blog-small" href="https://www.element14.com/community/people/lui_gough/blog/2020/03/10/itsa-me-power-supply-making-music-with-a-psu-redux">It&#39;sa me, Power Supply! - Making Music with a PSU? Redux!</a></h2></li><li><h2><a class="jive-link-blog-small" href="https://www.element14.com/community/people/lui_gough/blog/2020/03/12/itsa-me-power-supply-part-3-a-psu-that-plays-midi">It&#39;sa me, Power Supply! (Part 3) - A PSU that Plays MIDI?</a></h2></li></ul><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>It&#39;sa me, Power Supply! - Making Music with a PSU?</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/448x251/__key/communityserver-wikis-components-files/00-00-00-02-95/2084.contentimage_5F00_132865.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2084.contentimage_132865.png-448x251.png?sv=2016-05-31&amp;sr=b&amp;sig=ldTXkoJKBd5TH2sU7mVEcSPnNI4I9u3nYdOxz81UBAg%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=eC/M9WgdXMNWP2G+SgrkXQ==" style="max-height: 251px;max-width: 448px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/466x260/__key/communityserver-wikis-components-files/00-00-00-02-95/4213.contentimage_5F00_132866.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4213.contentimage_132866.png-466x260.png?sv=2016-05-31&amp;sr=b&amp;sig=3U0kephujwgNwNJ4sIk9cfapZIBxH3Ctj72SIHvyI%2B0%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=S5TULDdohXBYIOlQJAmnDw==" style="max-height: 260px;max-width: 466px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/449x253/__key/communityserver-wikis-components-files/00-00-00-02-95/1411.contentimage_5F00_132867.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1411.contentimage_132867.png-449x253.png?sv=2016-05-31&amp;sr=b&amp;sig=UJCYvCXVD6UefQUCr9Bt4WwElt6pRoxgTqBoL%2FjzLyU%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Ay+Rwb82bQjd4ORjPRomfA==" style="max-height: 253px;max-width: 449px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/464x262/__key/communityserver-wikis-components-files/00-00-00-02-95/5706.contentimage_5F00_132868.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5706.contentimage_132868.png-464x261.png?sv=2016-05-31&amp;sr=b&amp;sig=KkqFNPf84UJrDjaPRatTwfYraKnrJL8fEkH5cfbcAmA%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=FaEiSHCvZBzSQ04AeCnqQg==" style="max-height: 261px;max-width: 464px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"></td></tr></tbody></table><p style="margin:0;"><span id="a3587e6e_0ce5_42d6_967f_378a623ad7cd"><span><a href="https://www.youtube.com/watch?v=yW9IT7zWpMI">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="c7646b68_438f_4285_82cd_7d6efcb9c95f"><span><a href="https://www.youtube.com/watch?v=Pz7CS21R-hA">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="bd9a01c3_58d4_46d3_a7e2_5476c3f1cb48"><span><a href="https://www.youtube.com/watch?v=QeovqE7sVwI">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="https://www.element14.com/community/people/cypresstwist/blog/2020/02/27/childrens-acoustic-toy">Children&#39;s acoustic toy</a> by&nbsp; <span><a href="/members/cypresstwist">cypresstwist</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Children&#39;s Acoustic Toy</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/404x227/__key/communityserver-wikis-components-files/00-00-00-02-95/6366.contentimage_5F00_132872.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6366.contentimage_132872.png-404x226.png?sv=2016-05-31&amp;sr=b&amp;sig=guYd25v8DT6lJsd2aPPpXZ88JvzCkgywAeoshdUYSxo%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=LmC0kDgVVhz8m9o6LsiDcA==" style="max-height: 226px;max-width: 404px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/413x231/__key/communityserver-wikis-components-files/00-00-00-02-95/7271.contentimage_5F00_132873.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7271.contentimage_132873.png-413x230.png?sv=2016-05-31&amp;sr=b&amp;sig=%2BO7Ya%2FApgzad8pgpwgiv0BuSs2Rqrd7Lu2yJsJBm4NE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=3Kvb6dmgV83C4RXb/BhurQ==" style="max-height: 230px;max-width: 413px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="0aac36c9_3b0e_4b08_92dd_c3a4c2a0dab6"><span><a href="https://www.youtube.com/watch?v=w3kHKZQJys0">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="https://www.element14.com/community/people/vimarsh_/blog/2020/03/09/soundfi-transmitting-data-using-sound-ultrasonic-sound">SoundFi - Transmitting Data Using Sound (Ultrasonic Sound)</a> by&nbsp; <span><a href="/members/vimarsh_5f00_">vimarsh_</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>SoundFi - Transmitting Data Using Sound (Ultrasonic Sound)</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/409x231/__key/communityserver-wikis-components-files/00-00-00-02-95/5127.contentimage_5F00_132875.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5127.contentimage_132875.jpg-409x230.jpg?sv=2016-05-31&amp;sr=b&amp;sig=UShhu6p2w%2Bl7B7yEf69HodtOyr96uWQd7HP6gd1fT9w%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=sdQtrYKUNB1kcCkPrhUbQw==" style="max-height: 230px;max-width: 409px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/405x228/__key/communityserver-wikis-components-files/00-00-00-02-95/3073.contentimage_5F00_132876.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3073.contentimage_132876.jpg-405x228.jpg?sv=2016-05-31&amp;sr=b&amp;sig=8nhQ7s3IN7qbXizar7WdOoNUi0aqrB905oPh52JgJpE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=2WQR4EdhkOk/35OKKNeDeQ==" style="max-height: 228px;max-width: 405px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/417x235/__key/communityserver-wikis-components-files/00-00-00-02-95/2477.contentimage_5F00_132877.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2477.contentimage_132877.jpg-417x235.jpg?sv=2016-05-31&amp;sr=b&amp;sig=vuYoCMoOBXOorb3EUfURav8XJksTu5BLH9a54%2B%2FsJy4%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=lxQ1UO2XMAaGV/RHaFvzRA==" style="max-height: 235px;max-width: 417px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/400x225/__key/communityserver-wikis-components-files/00-00-00-02-95/0334.contentimage_5F00_132878.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0334.contentimage_132878.jpg-400x225.jpg?sv=2016-05-31&amp;sr=b&amp;sig=GA4Jd8NeLTkEPFAFA0wHoXp48ooRiYQX6M7SQuYWVpg%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=PrMTzBb12dzZb8sFYIf4vw==" style="max-height: 225px;max-width: 400px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/portable-ultrasonic-object-detector">Portable Ultrasonic Object Detector</a> by&nbsp; <span><a href="/members/kedwards_4000_swbell.net">kedwards@swbell.net</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Portable Ultrasonic Object Detector</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/428x179/__key/communityserver-wikis-components-files/00-00-00-02-95/8738.contentimage_5F00_132879.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8738.contentimage_132879.jpg-428x179.jpg?sv=2016-05-31&amp;sr=b&amp;sig=5VO6otPAgo49QSYTgrJqfEigU707kx%2BsxgaC5SEFL0U%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=CkNXLNaeqxP/vHfqBMQeHA==" style="max-height: 179px;max-width: 428px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/208x182/__key/communityserver-wikis-components-files/00-00-00-02-95/6685.contentimage_5F00_132880.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6685.contentimage_132880.jpg-208x181.jpg?sv=2016-05-31&amp;sr=b&amp;sig=4T7mHGI%2Bfxzxcm1yztgk6dbHJoIu%2BnzRjRclUXY0Q5M%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=yfeZjlOj7YonhDDtD78v2w==" style="max-height: 181px;max-width: 208px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/369x281/__key/communityserver-wikis-components-files/00-00-00-02-95/3542.contentimage_5F00_132881.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3542.contentimage_132881.png-369x281.png?sv=2016-05-31&amp;sr=b&amp;sig=L8zK0oCWnHprxnPLzr1IRuywzvpwUJP0YoqKFVacm9k%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=kDveYQ6Y5WxsXjSTz3aJdA==" style="max-height: 281px;max-width: 369px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/307x251/__key/communityserver-wikis-components-files/00-00-00-02-95/1488.contentimage_5F00_132882.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1488.contentimage_132882.jpg-307x251.jpg?sv=2016-05-31&amp;sr=b&amp;sig=08sJx29ypy4Tnbl9O2%2FsWTR4zou2fAXPLmmgbmTZmBI%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=j1AuUGIYcQtZjp4nkQsrsw==" style="max-height: 251px;max-width: 307px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="2e72bc5c_7aa0_4659_bd54_5af3d6036b50"><span><a href="https://www.youtube.com/watch?v=kWHr2vpqc2E">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/disappointing-ultrasonic-dog-deterrent-dudd">Disappointing Ultrasonic Dog Deterrent (DUDD)</a>&nbsp; by&nbsp; <span><a href="/members/kmikemoo">kmikemoo</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Disappointing Ultrasonic Dog Deterrent (DUDD)</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/457x201/__key/communityserver-wikis-components-files/00-00-00-02-95/2068.contentimage_5F00_132884.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2068.contentimage_132884.jpg-457x201.jpg?sv=2016-05-31&amp;sr=b&amp;sig=V51r3%2FdwEOJsH4c%2BygGQ0%2F0Fr2nDBMf5tYFQlW%2FCCcY%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=3Y4DbKKpFlnt4XNskd3j1w==" style="max-height: 201px;max-width: 457px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/164x218/__key/communityserver-wikis-components-files/00-00-00-02-95/6201.contentimage_5F00_132885.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6201.contentimage_132885.jpg-163x218.jpg?sv=2016-05-31&amp;sr=b&amp;sig=twTI2UJBfckhSkXnpcYL1%2Bh2d%2F6aKvqOcKmDS92p6Zs%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=jOK1ocklHG+ilZWyw4+IQA==" style="max-height: 218px;max-width: 163px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/438x286/__key/communityserver-wikis-components-files/00-00-00-02-95/3157.contentimage_5F00_132886.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3157.contentimage_132886.jpg-438x286.jpg?sv=2016-05-31&amp;sr=b&amp;sig=26RWCHB0sBzCfrM%2B3TQq5OdjeZAEzCXAjsZ5%2BgtK6Sg%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=hdkoeqAuaEhVy3RLUU6Ckg==" style="max-height: 286px;max-width: 438px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/203x271/__key/communityserver-wikis-components-files/00-00-00-02-95/1004.contentimage_5F00_132887.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/1004.contentimage_132887.jpg-203x271.jpg?sv=2016-05-31&amp;sr=b&amp;sig=vUwBL4uNMXFc55n7PlzU0DRWu2NWW8NJ8s%2FdxefmRHk%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=0R4+3yYdLJklQWMYXHCusA==" style="max-height: 271px;max-width: 203px;" /></a></span></td></tr></tbody></table><p style="margin:0;"><span id="9f0ebc2a_f98d_46e1_a82d_df84012d059e"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6141227809001">players.brightcove.net/.../index.html</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="https://www.element14.com/community/people/cypresstwist/blog/2020/03/14/neotrellis-synth">Neotrellis Synth</a> by&nbsp; <span><a href="/members/cypresstwist">cypresstwist</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Neotrellis Synth</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/508x286/__key/communityserver-wikis-components-files/00-00-00-02-95/0728.contentimage_5F00_132889.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0728.contentimage_132889.jpg-508x285.jpg?sv=2016-05-31&amp;sr=b&amp;sig=xl1OjM0WGPv4VKjB5Dbua752xJyKkvPcnT8MqkBfqGE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=mSIw3aISDogEfXbAfV5IBQ==" style="max-height: 285px;max-width: 508px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/509x285/__key/communityserver-wikis-components-files/00-00-00-02-95/6675.contentimage_5F00_132890.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6675.contentimage_132890.png-509x284.png?sv=2016-05-31&amp;sr=b&amp;sig=inJ1rotTf9mVhNR3%2F2stIl8Ay3QM%2FVs9PagK6ZqcGgw%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=YLjH9QPcszgNqRW86paz4A==" style="max-height: 284px;max-width: 509px;" /></a></span></td></tr></tbody></table><p style="margin:0;"><span id="809c4205_0e58_4e6c_8afe_b08885747fd6"><span><a href="https://www.youtube.com/watch?v=KqyemfLtYJc">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/yet-another-sound-maker">...Yet another sound-maker</a>&nbsp; by&nbsp; <span><a href="/members/ankur608">ankur608</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong> ...Yet another sound-maker</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/449x402/__key/communityserver-wikis-components-files/00-00-00-02-95/4532.contentimage_5F00_132892.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4532.contentimage_132892.jpg-449x401.jpg?sv=2016-05-31&amp;sr=b&amp;sig=LHTh3g1jk8kcZhymsStccf%2BNnQT3Ctliei3ihjVvpGA%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=NclHAMIDN2FM6J3CdIc61g==" style="max-height: 401px;max-width: 449px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/370x379/__key/communityserver-wikis-components-files/00-00-00-02-95/2477.contentimage_5F00_132893.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2477.contentimage_132893.jpg-370x379.jpg?sv=2016-05-31&amp;sr=b&amp;sig=Hj%2FGYg9T6q3fo9SNa8N71rPndPPFoN0GQwCROcXUE%2FQ%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=DASVdUt4JCTn+hN42LYN2A==" style="max-height: 379px;max-width: 370px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/500x408/__key/communityserver-wikis-components-files/00-00-00-02-95/0334.contentimage_5F00_132894.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0334.contentimage_132894.jpg-500x408.jpg?sv=2016-05-31&amp;sr=b&amp;sig=FZQLi2QG4xCEWK2EDp7xH2B%2BCvhPenFQ3KCQkeji9T0%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=VFt/8rJogdTp1uRHO4gEsg==" style="max-height: 408px;max-width: 500px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/1160x605/__key/communityserver-wikis-components-files/00-00-00-02-95/6281.contentimage_5F00_132895.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/6281.contentimage_132895.jpg-620x323.jpg?sv=2016-05-31&amp;sr=b&amp;sig=ywLpqWIJiQ9aXRG8p3oEtkTc32W%2BIgWWZA4MtovRr8Q%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=F5e+6PMjwyNsUGIOw7/bcw==" style="max-height: 323px;max-width: 620px;" /></a></span></td></tr></tbody></table><p style="margin:0;"><span id="789589d6_e2a8_44a3_bebf_c0cbc3356381"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6141710170001">players.brightcove.net/.../index.html</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challengesprojects/project14/acoustics/b/blog/posts/cellphone-controlled-robot">Cellphone controlled Robot</a> by&nbsp; <span><a href="/members/crisdeodates">crisdeodates</a></span></h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Cellphone controlled Robot</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/439x329/__key/communityserver-wikis-components-files/00-00-00-02-95/7752.contentimage_5F00_132897.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7752.contentimage_132897.png-439x329.png?sv=2016-05-31&amp;sr=b&amp;sig=pXmT4OP4iHiLD5KjZRe8fFhRVHRteQ4vjtzf%2Ftdi9H8%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=UrutgGIutEoZAisRx+E2lg==" style="max-height: 329px;max-width: 439px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/433x325/__key/communityserver-wikis-components-files/00-00-00-02-95/7774.contentimage_5F00_132898.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/7774.contentimage_132898.png-433x324.png?sv=2016-05-31&amp;sr=b&amp;sig=nSB60XlkyxpqWEjBvC0e2GgjxbN0qSHj4%2F4AiOJIL40%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=4j0oGUyECrnXie5EYZmp9w==" style="max-height: 324px;max-width: 433px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/439x329/__key/communityserver-wikis-components-files/00-00-00-02-95/2068.contentimage_5F00_132899.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2068.contentimage_132899.png-439x329.png?sv=2016-05-31&amp;sr=b&amp;sig=Yfx0%2BOX%2BWinrLUVwkn55Fxt7iyR1inFJCsWAR8ENMVo%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=gVemnPpxac5iFEgcDtZqyQ==" style="max-height: 329px;max-width: 439px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/433x325/__key/communityserver-wikis-components-files/00-00-00-02-95/2072.contentimage_5F00_132900.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2072.contentimage_132900.png-433x324.png?sv=2016-05-31&amp;sr=b&amp;sig=iKPRs1cgw1yxpoP31o5BfOZKoJQorGsobExYfj1F5zY%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=ei2qnu52YItcr6nK86PStg==" style="max-height: 324px;max-width: 433px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/relaxing-sounds-of-nature">Relaxing sounds of nature</a>&nbsp; by&nbsp; <span><a href="/members/redcharly">redcharly</a></span>:</h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Relaxing sounds of nature</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/448x252/__key/communityserver-wikis-components-files/00-00-00-02-95/8838.contentimage_5F00_132901.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/8838.contentimage_132901.jpg-448x252.jpg?sv=2016-05-31&amp;sr=b&amp;sig=4ScSyGN%2BF1zCtfX8I0Ite%2FiSoRV2PvQmP%2BYEh%2FDi7xE%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=8b5vata3ubKNxNyJu3a+ag==" style="max-height: 252px;max-width: 448px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/488x250/__key/communityserver-wikis-components-files/00-00-00-02-95/2480.contentimage_5F00_132902.png"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/2480.contentimage_132902.png-488x250.png?sv=2016-05-31&amp;sr=b&amp;sig=HTDlHHki0w8wgJKZguTsNuiIwb8HgQWk%2F%2FV0jC7fAaQ%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Xu59RDQhzB+pGJ1UJ78Rbg==" style="max-height: 250px;max-width: 488px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="cc227360_8f48_407c_9b6e_78b0739ae83f"><span><a href="https://www.youtube.com/watch?v=WHtcMVhk1Fc">www.youtube.com/watch</a></span></span></p><p style="margin:0;padding:0px;">&nbsp;</p><h1><a class="jive-link-blog-small" href="/challenges-projects/project14/acoustics/b/blog/posts/buzzomatic---electric-ears">Buzzomatic - electric ears</a> by&nbsp; <span><a href="/members/paj">paj</a></span>:</h1><p style="margin:0;padding:0px;">&nbsp;</p><table border="0px" class="jiveBorder" style="border:0px solid #ffffff;width:100%;"><thead><tr><th colspan="2" style="border:0pxpx solid black;border:0px solid #ffffff;padding:6px;color:#ffffff;background-color:#9ea900;text-align:left;" valign="middle"><strong>Buzzomatic - electric ears</strong></th></tr></thead><tbody><tr><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/420x315/__key/communityserver-wikis-components-files/00-00-00-02-95/3051.contentimage_5F00_132904.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/3051.contentimage_132904.jpg-420x315.jpg?sv=2016-05-31&amp;sr=b&amp;sig=iVSRrIkMmDmDfGPrVf%2BpM8PTWJR1uUNzGNHial1tK%2Bg%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=Yz+KKDOgNssdj8ba+srSQA==" style="max-height: 315px;max-width: 420px;" /></a></span></td><td colspan="1" style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/254x320/__key/communityserver-wikis-components-files/00-00-00-02-95/4532.contentimage_5F00_132905.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/4532.contentimage_132905.jpg-254x320.jpg?sv=2016-05-31&amp;sr=b&amp;sig=uoyXsMHLWngDUZqC2BHBjyS%2FRvV1jHAQ55B91YaNiHY%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=4SsBV9x5SWvF7UBUHPORxQ==" style="max-height: 320px;max-width: 254px;" /></a></span></td></tr><tr><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/353x253/__key/communityserver-wikis-components-files/00-00-00-02-95/5102.contentimage_5F00_132906.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/5102.contentimage_132906.jpg-353x252.jpg?sv=2016-05-31&amp;sr=b&amp;sig=pN%2B%2Fx3IO35YTFk8Skhj2yMMXC23bupyhfXm0MOBhFNI%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=9I25K4Pr/WrCpqjyfny3+g==" style="max-height: 252px;max-width: 353px;" /></a></span></td><td style="border:0pxpx solid black;border:0px solid #ffffff;width:50%;padding:6px;"><span><a href="https://community.element14.com/resized-image/__size/329x247/__key/communityserver-wikis-components-files/00-00-00-02-95/0334.contentimage_5F00_132907.jpg"><img loading="lazy" alt="image" src="https://community-storage.element14.com/communityserver-components-secureimagefileviewer/communityserver/wikis/components/files/00/00/00/02/95/0334.contentimage_132907.jpg-329x246.jpg?sv=2016-05-31&amp;sr=b&amp;sig=%2FQFuG%2BkUyv%2B70bq8ZmWnmwDes04b6Y1TM3iVQojHtOo%3D&amp;se=2026-05-16T23%3A59%3A59Z&amp;sp=r&amp;_=6d+ysUL8QlTbxbqKDaldFw==" style="max-height: 246px;max-width: 329px;" /></a></span></td></tr></tbody></table><p style="margin:0;padding:0px;">&nbsp;</p><p style="margin:0;"><span id="aa8459bd_d772_4a3d_88d0_cff71993b3fb"><span><a href="https://players.brightcove.net/1362235890001/NkxiVJdjx_default/index.html?videoId=6142135082001">players.brightcove.net/.../index.html</a></span></span></p><div style="clear:both;"></div> <div style="font-size: 90%;">Tags: acousticsch</div>