Sonos supports the following for HLS:

MIME/media types: application/x-mpegURL, application/vnd.apple.mpegurl, audio/mpegurl
Codecs and profiles: AAC-LC, HE-AAC, HEv2-AAC
Container format: MPEG-TS, MPEG-4
Playlist formats: m3u and m3u8
Sample rates: 48 kHz or lower