Dolby stereo audio playback failure on Windows 10 since Edge 141
Hi there, I'd like to report a regression I recently discovered: Dolby Stereo is failing to play in Edge, but Dolby 5.1 channel doesn't experience this issue. The issue can be reproduced using AC3 audio generated by FF.mpeg. Run the following FF.mpeg command to encode a short AC3 stereo audio clip containing noise into an MP4 file. Drag and drop the file into Edge; you'll observe playback failure, and you can also find the failure log in edge://media-internals/. ff mpeg -f lavfi -i anoisesrc -c:a ac3 -ac 2 -y 2ch.mp4 Changing the encoding channel in the FF.mpeg command -ac to 6 (5.1) will allow the audio to be played in Edge. ff mpeg -f lavfi -i anoisesrc -c:a ac3 -ac 6 -y 6ch.mp4 The same is true for EAC3 audio. Just need to change the -c:a parameter to eac3. For more contexts, I'm not on a fresh installation of Windows 11. I'm still on Windows 10, so https://learn.microsoft.com/en-us/windows/win32/medfound/dolby-audio-decoder is still available. I'm currently on 142.0.3595.53 (stable). I've also tested 144.0.3658.0 (canary), but the issue persists. Please let me know if you need more information. Thanks in advance.
