Remote audio becomes inaudible on Chromium 149 while video remains healthy

[Boyoung Choi]

Hello WebRTC team,

We operate a WebRTC-based 1:1 video communication service.

We have recently observed a noticeable increase in cases where:
- Remote video continues rendering normally
- Remote audio becomes inaudible
- When the affected user refreshes the page, audio is usually restored immediately

The issue has been observed across Windows, macOS, and Android devices.

It has been observed on Chromium 149-based browsers (Chrome 149 and Edge 149). Under the same service flow and WebRTC configuration, we have not observed equivalent symptoms on Safari/WebKit so far.

The issue has been reported by multiple users and has also been reproduced internally by our team. It is occurring relatively frequently, roughly once every 3~4 new conversations.

We have already filed a Chromium issue:
https://issues.chromium.org/issues/524004688

Has anyone observed similar behavior on Chromium 149, or is there any known change related to WebRTC remote audio playout that we should investigate?

Any guidance would be greatly appreciated.

Thank you.