Hi,
Most of the software portion is the Playback() function that was developed with a specific logic (continuous repeating the sound, accelerating / decelerating the sound and so on...).
The changes are not only in the software but also on how to build the .wave files and how you store them in the flash memory.
Not a trivial task for sure.
I suggest to start from the User Manual 2719
https://www.st.com/resource/en/user_manual/um2719-avas-architecture-based-on-autodevkit-stmicroelectronics.pdf
Best Regards,
AutoDevKit Team
