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Audio Up/Down Conversion

Discussion in 'Electronic Basics' started by BobaMosFet, Jun 8, 2007.

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  1. BobaMosFet

    BobaMosFet Guest

    Does anyone have a schematic (or link to one) of a circuit that will
    convert very low (below human audio) and very high (above human audio)
    to somewhere in the 20Hz to 20kHz range? Even if there are 2
    schematics (one for low and one for high) it would be helpful. Thanks.
  2. John Fields

    John Fields Guest

  3. BobaMosFet

    BobaMosFet Guest

    I'm not sure. I thought it would be interesting to hear how many sub
    and super sonic sounds are around us. Anything above or below normal
    hearing range is good.
  4. Sjouke Burry

    Sjouke Burry Guest

    Google for "bat detector". Those convert bat
    ultrasonics to the audio range.
  5. Jamie

    Jamie Guest

    THe Stand by diode ring modulator! :)))

    LM1496 chip will also do it ...
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