Package: libmad Version: 0.15.1b-11 libmad has no detection for aarch64. This causes it to use imprecise 32 bit math which introduces a strong sound quality regression.
The issue has been also reported here: https://bugs.launchpad.net/ubuntu/+source/libmad/+bug/2114881 We already have a patch for x64, this needs to be extended for aarch64.