Programming Reference

This command sets the audio playback rate of the chip. This playback rate should match the sample rate of the audio file, so if the sample rate of the audio file is 8kHz, then the chip should also be set to 8kHz (freq=8k).

The chip supports audio playback rates from 2.5 kHz (freq=2.5k) to 20 kHz (freq=20k).

Code Example

Meaning

freq=12k

Set the audio sample playback rate to 12 kHz.