What could be the reason for the lack of audio transmitted via WebRTC?

Question

JavaScript

Hello
I have a problem with WebRTC
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The 'track' event is fired, the MediaStream and MediaStreamTrack arrive respectively, but nothing happens when I try to play them...
What could be wrong here?
I'm trying to play them through new Audio().srcObject. Just in case, I checked that Streams received via getUserMedia({ audio: true }) are played in this way, so the problem is not in the playback method...