Cool. AK CODECs sound very nice, sometimes even better than Cirrus chips. Some years ago I did a similar board hooking an STM32F4 to a TLV320AIC3256 CODEC. TI

Cool. AK CODECs sound very nice, sometimes even better than Cirrus chips. Some years ago I did a similar board hooking an STM32F4 to a TLV320AIC3256 CODEC. TI provides an audio development IDE, PurePath [0], to program the embedded miniDSP where you can 'code' and configure different effects graphically (they even have a guitar FX demo, tool written in LabVIEW - yikes!). Sadly they don't disclose the low level programming instruction codes, therefore changing things programmatically in the microcontroller at runtime is limited. I tried to reverse engineer the instructions with limited success, and then I just lost interest. ¯\_(ツ)_/¯ [0] http://www.ti.com/tool/AICPUREPATH_STUDIO http://www.ti.com/tool/AICPUREPATH_STUDIO