I am attempting to use AudioKit 4.x (open to using 5.x beta) on iOS and am unsure of the best approach to accomplish the following:
Play an audio file with NO audile processing while:
- Merging L+R channels to create mono
- Applying Low Pass Filter
- Convert the sample rate from input rate to a very low rate ~ 1kHz
- Capture PCM data in realtime for transmission over BLE
I have had varying success with parts of this but don't know how to resample and capture the PCM data. I don't necessarily need code - just pointed in the right direction.