What example code are you running and which sound card do you have installed? (I2S or some USB card?)
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A quick search here:
shows that someone already did the work. So perhaps WereCatf's tip about LEDE packages can be of help:
@Malcolm-White-0 The Rocki Audio Expansion also has USB-based audio, so it's definitely usable.
See our guide on USB-based audio: https://docs.onion.io/omega2-docs/usb-playing-audio.html
@Lazar-Demin What about the I2S/PCM Interface that the SOC of Omega2 supports? Are those signals available as GPIO's?
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