Issue metadata
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Audio channels get merged when sent over WebRTC PeerConnection
Reported by
kylepetr...@gmail.com,
Aug 23 2016
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Issue description
Chrome Version : 52.0.2743.116
OS Version: OS X 10.11.6
URLs (if applicable) :
Other browsers tested:
Add OK or FAIL after other browsers where you have tested this issue:
Safari 5:
Firefox 4.x:
IE 7/8/9:
What steps will reproduce the problem?
1. Create a multi channel audio track.
2. Send audio track through PeerConnection via MediaStream
3. Receive stream, playback audio.
What is the expected result?
Channels on audio track remain intact.
What happens instead of that?
Channels on audio track have been merged.
Please provide any additional information below. Attach a screenshot if
possible.
UserAgentString: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/52.0.2743.116 Safari/537.36
A demo of this can be found here: https://kpetrovi.ch/samples/src/content/peerconnection/webaudio-channels/
Toggle the source audio to hear what I'm trying to send. Toggle the received audio to hear what I'm getting. Headphones recommended for greatest effect.
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Aug 24 2016
,
Aug 25 2016
Able to reproduce this on the latest canary(54.0.2839.0) and the latest stable(52.0.2743.116) on Mac OS 10.11.6 as per the attached Demo. This is regressed in M-49. Last good build: 49.0.2589.0 First bad build: 49.0.2590.0 Changelog: ========== https://chromium.googlesource.com/chromium/src/+log/2c35494313065bb6d07ef80bb5c4dbf319cc109f..9c249ae0e2b69e5bed744e958e08cb0adbb82e6f Webrtc changelog: ================= https://chromium.googlesource.com/external/webrtc/trunk/webrtc.git/+log/1961b16..387e90b Suspected change: https://codereview.webrtc.org/1505253004 tommi@: Could you please take a look at this. Thank you!
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Aug 31 2016
tommi@ this sounds like it's a caveat of the current implementation as you describe in https://bugs.chromium.org/p/chromium/issues/detail?id=121673#c102, is that right?
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Sep 6 2016
ping
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Sep 13 2016
Just checking on the status of this. Is this still scheduled for release 54? Thanks so much.
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Oct 2 2016
kylepetrovich: Are you turning off audio processing in your call to getUserMedia? If no, try setting echoCancellation=false. With audio processing turned on, stereo will be down mixed to mono.
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Nov 15 2016
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Jan 16 2017
Closing due to no feedback. I assume that this was because of using audio processing.
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Apr 5 2018
I have the same issue. The issue doesn't seem resolve even echoCancellation=false |
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Comment 1 by kylepetr...@gmail.com
, Aug 23 2016