Sample up to 8 sounds and use the results as a trigger

Discussion in 'The Projects Forum' started by signorellijoe, Sep 24, 2009.

  1. signorellijoe

    Thread Starter New Member

    Sep 24, 2009
    I am looking for a simple chip or circuit that based on a specific sound will trigger another action on my board. up to 8 sounds about 2 sec long is what I am looking to sample. Can anyone help me with this or point me in the right direction.

    Thanks again
  2. RiJoRI

    Well-Known Member

    Aug 15, 2007
    More info is needed, such as the types of sounds, the attack/decay, amplitude, frequency, etc.

    If the sound is not yet defined, I would suggest using DTMF tones. The generator and decoder chips are available, and the dual tones were designed to not interfere with other pairs.