Basic Audio Project Help

Discussion in 'The Projects Forum' started by ComputerGeek, Jul 12, 2011.

  1. ComputerGeek

    Thread Starter New Member

    Jul 12, 2011
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    Hello, my first post. Yay :) Anyway, I have a question I want to use a peizo as a pickup in a circuit where there was previously a Electret condenser microphone or a dynamic mic (not sure which one). Anyway, I heard that a Peizo was a high-Z signal and was wondering if I could just exchange these or if that would fry my circuit without converting it into a Low-Z signal. Any help would be great.
     
    Last edited: Jul 12, 2011
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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  3. ComputerGeek

    Thread Starter New Member

    Jul 12, 2011
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    I Read most of it, however it is a little over my head. I should give a little more info about what i am looking to do,

    This will be going into a Bluetooth Headset. So what I am looking to do is remove the current Microphone and replace it with a peizo. are you saying that I will need a preamp for the peizo since it is High-Z?
     
  4. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    you could try a direct input replacement. If it is too weak to give a suitable output compared to the original microphone, a simple variable gain opamp circuit might be all you need to adjust the response level.
     
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