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  • Author Author: dougw
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Pi-Fest Music Tech Challenge - Awesome Prizes

dougw

I received 4 large boxes from element14 yesterday - two of them contained prizes from the Pi-Fest Music Tech Challenge, so of course I had to post a blog about what was in the boxes:

The Frameworks mic stand was not listed in the prize description so that was a big surprise and it came with an embedded XLR cable, so I don't need to buy one of those either. This equipment is useful for the videos I produce but well beyond what would fit in my budget, so I was very lucky to end up with it. This system will definitely be featured in upcoming videos on element14 - as soon as I sort out how to integrate it all into my workflow. For example, can I connect this mic to may camera? It needs an amp to work with my camera but will that introduce a delay in the audio? Anyway, I am working on figuring it all out and will get there eventually.

Thank you element14 and Raspberry Pi, this is an outstanding prize package.

Relevant Links:
Blog 1 - Introduction and circuit schematic description
Blog 2 - PCB layout and manufacturing
Blog 3 - Firmware and issues
Blog 4 - Mechanical enclosure design and features
Blog 5 - Project summary and discussion
Pi-Fest Music Contest page
AY-3-8910 Datasheet
Dual Synth link

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  • Nice kit! 

    Probably easiest is to get a (relatively) cheap SD card based audio recorder, such as a Zoom. The output from the mic can, either directly, or from your mixer, go into the recorder. That way, you've got a completely separate sound recording, and it's possible to manually sync to the camera footage, because your camera will have recorded the audio using it's own internal mic too. You can see the same shape sound on your timeline (when video editing) from the two audio sources, and it is then easy to visually align the two by looking for any peak or shape on each of the audio tracks, and then mute out the camera audio when rendering to the video file. It takes just a few seconds to align the two tracks.

    I guess you could attach to a camera, to record the audio and video all in one video file, but the editing software should handle an additional audio channel so that you can mute out the camera one after the zoom one is aligned.

    The zoom device is not essential since the second track could be just directly recorded using (say) Audacity I expect, but I find it convenient to just have the standalone Zoom device and not be tethered to the PC.

  • in reply to shabaz

    Good idea for aligning audio, although I don't often fire up a sophisticated audio-video editor. The mic connects to the GO XLR which connects to a PC or camera, so the PC is likely the path if I don't go to the camera.

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