While I cannot provide a direct file download link (as I cannot browse the live web or verify the safety of third-party file hosts), I can give you the official source details and explain why it is an "interesting paper" (topic) in the Android audio community.
Always make a full backup of your /vendor partition before flashing. An incompatible audio policy file can send you into a bootloop. Keep a copy of the ACP Uninstaller (same GitHub page) on your SD card. audio compatibility patch magisk module link
config.sh (a simple configuration script for the module) While I cannot provide a direct file download
github.com/pexcn/audio-compatibility-patch