Hello, there is an [example](https://github.com/ChrisMicro/Arduino_STM32F4_Discovery/tree/master/examples/AudioBufferPlayer_sineWave) for I²S audio output in @ChrisMicro's repo repo and it'll be nice to have something like that in stm32duino examples, too. Hopefully it's not much different between stm32duino and stm32generic.