1399193 - Severe audio distortion/slowdown/delay sharing mic in multiple tabs (regression)

Status: RESOLVED WORKSFORME

(Core :: WebRTC: Audio/Video, defect, P2)

Description

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

+++ This bug was initially created as a clone of Bug #1381638 +++

STRs:
 1. Open http://jsfiddle.net/jib1/n49r4v6p/ + share mic
 2. Say "Luke, I am your father"

Expected result: No hilarity

Actual result: Vader-speak on multi-second delay.

Reproduced on OSX, Windows 10 and linux.

From code inspection, this is believed to have regressed in 51 (bug 1271585), but may be tied to enabling of full duplex as well, at least getting a regression range proved difficult when I tried.

Alternative STRs:
 1. Open https://blog.mozilla.org/webrtc/fiddle-of-the-week-audio-constraints/
 2. Click "Result" tab.
 3. Uncheck noiseSuppression
 4. Uncheck echoCancellation

The blog makes the problem quite obvious so it is hard to not imagine it worked at some point. I even tried setting media.navigator.audio.full_duplex=false, but it didn't help (maybe I should have restarted).

Comment 1

[Andreas Pehrson [:pehrsons]]

Can a mochitest catch this on Linux with a virtual device?

Comment 2

[Bulk Bug Changes for mreavy's org]

Mass change P1->P2 to align with new Mozilla triage process

Comment 3

[Andreas Pehrson [:pehrsons]]

I cannot reproduce this now -- overtaken by events.