The number of audio channels can be configured in SDP, and can thus be set to arbitrary values. However, the audio code has limitations that prevent a high number of channels from working well in practice. Bug: chromium:1265806 Change-Id: I6f6c3f68a3791bb189a614eece6bd0ed7874f252 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/237807 Reviewed-by: Jakob Ivarsson <jakobi@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Commit-Queue: Ivo Creusen <ivoc@webrtc.org> Cr-Commit-Position: refs/heads/main@{#35359}