Teensy 4.0 Development board- Varying looping audio wave files in speed and volume on-the- fly

R

RealSound

New member
I am currently using a teensy 4.0 arduino to change speed (sample rate), and amplitude of seamless looping wave files on the fly using a DC pot control voltage. I am playing up to 4 files at a time and cross fading them also. It works great in tandem with the sparkfun wavtrigger.
Is there another smaller audio shield that can work the same way with the arduino? The wavtrigger is much more than I need and I would like a smaller board.
Any ideas would be appreciated.
 
You want this library, and this audio DAC is probably the smallest out there, followed by one of the widely available boards based on the PCM5102.

You will need to completely re-write your code, because the Teensy will be doing all the playback internally, rather than just controlling an external player. But the library takes care of all the really complex stuff…
 
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