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Thread: AudioInputAnalog circuit sensitivity

  1. #1
    Junior Member
    Join Date
    Mar 2016

    AudioInputAnalog circuit sensitivity


    I'm using the circuit from:

    With a Teensy LC, what component would I adjust to alter the sensitivity? I'm using this with headphone output from an MP3 player.

    I'm also passing through the audio signal to an amp/headphones.


  2. #2
    Senior Member PaulStoffregen's Avatar
    Join Date
    Nov 2012
    None of the Teensy Audio Library works on Teensy-LC yet. Someday a subset of the library will support LC, and some initial work has already started towards that goal... but a *lot* more remains to be done to port to LC's less powerful DMA controller.

    Today only Teensy 3.0, 3.1, 3.2 are supported so far.

  3. #3
    Junior Member
    Join Date
    Mar 2016
    Hi Paul,

    I'm using the LCAnalyzeFFT library which is working ok for my needs (simple beat detection)

    However the output data seems quite low unless I max out the volume on the mp3 player.

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