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Documents The Learning Circuit 47: Soldering A Voice Changer Kit
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Author: tariq.ahmad
Date Created: 2 Mar 2019 7:02 PM
Last Updated: 3 Jul 2019 1:43 PM
Views: 424
Likes: 4
Comments: 2
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The Learning Circuit 47: Soldering A Voice Changer Kit

Soldering A Voice Changer Kit

The Learning Circuit | element14 presents  | VCP Biography: Karen |  Project Videos

 

 

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The last episode we learned all about sound components, those that make them and those that interpret them. In this episode, Karen assembles as Velleman MK171 Voice Changer kit. She walks you through the instructions, reviewing symbols, components, and concepts learned in previous episodes. This circuit has uses 2 IC chips, LM386N op-amp, and an HT8950, voice modulator chip. When sound is interpreted by the microphone, the signal goes through these ICs, is processed, and changed to modulate the user’s voice. Using the tac switch buttons on the PCB, the voice can be changed, adding vibrato, adjusting the pitch up and down, or made to sound like a robot. The circuit also includes variable resistors that allow for changing the microphone sensitivity and the speaker’s output volume. Batteries and speaker not included.

 

 

Bill of Materials

 

Product NameManufacturerQuantityBuy KitBuy Kit
Voice Changer KitVelleman1Buy NowBuy Now
Speaker (Option 1)Kingstate1Buy NowBuy Now
Speaker (Option 2)Pro Signal1Buy NowBuy Now
9V BatteryPro Elec1Buy NowBuy Now
Attachments:
47 Electronic Voice Changer Script.pdf
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Anonymous
  • airbornesurfer
    airbornesurfer over 2 years ago

    I've thought about incorporating a voice changer circuit into my 2XL robotic assistant rebuild, and this might just work! Great vid, Karen!

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  • DAB
    DAB over 3 years ago

    Very good episode.

     

    You did a good job assembling the circuit, taking the proper precautions with the polarized components and following directions.

     

    Well done.

     

    DAB

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