1404244 - webrtc poor sound quality, too noise

Status: RESOLVED DUPLICATE of bug 1405893

(Core :: WebRTC: Audio/Video, defect)

Description

[huangwenjun06]

User Agent: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/60.0.3112.101 Safari/537.36

Steps to reproduce:

1:open link : https://mozilla.github.io/webrtc-landing/gum_test.html
2: test webrtc audio 


Actual results:

poor sound quality, too noise


Expected results:

good sound quality, no noise

Comment 1

[Anna Vasilko]

We are experiencing this problem as well with Firefox 56 in several WebRTC-based applications.
It is confirmed to be only Firefox issue, which is not reproducible in Chrome. 
Seems to be an issue with performance, not only audio. 
During a call when both audio+video is shared, audio is fine at first, then gets some static noise which increases with time. Eventually Firefox CPU consumption raises up to 70-80% and the whole system starts lagging.

Comment 2

[Andreas Pehrson [:pehrsons]]

I'm duping this to bug 1405893 since that one has more information.

Comment 3

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Hi huangwenjun06, thanks for filing! Sorry for the late reply. With the second report, the chance of a regression has gone up.

We need more info to reproduce, and hope you can help. What version of Firefox is having this problem? What platform?

Can you do us a favor and try Firefox 55, Firefox 56 and Firefox 57 to see if the problem is worse in one versus the others?

Knowing if this is a regression would help us tremendously in prioritizing a rapid fix for this issue.

There's also a regression tool we use internally to find a regression range, http://mozilla.github.io/mozregression/ if you're up for it.

But just knowing the results from 55, 56 and 57 is the most important, thanks!

Comment 4

[huangwenjun06]

hi, thanks for reply. problem maybe exist with this situmation. one client on windows 32bit system; another client on linux 64bit system. the audio quality is poor.
i have tested firefox55, firefox56 , mozilla inbound before. the problem still exist. next i would test more.

Comment 5

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Hi huangwenjun06, could you try again with the latest 57 beta and Nightly? - https://nightly.mozilla.org/

There's a chance this got duped incorrectly, and should be re-opened.