add audio

hc

2023-12-11 1f93a7dfd1f8d5ff7a5c53246c7534fe2332d6f4

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# From http://www.apache.org/dist/xerces/c/3/sources/xerces-c-3.1.4.tar.xz.sha256
sha256 9973cc79481803f8b6652c52faf5195d963f50d209d4f681ec97e2aa014b6241 xerces-c-3.1.4.tar.xz