1280002 - MediaRecorder API recorded audio is corrupted

Status: RESOLVED DUPLICATE of bug 1278027

(Firefox :: Untriaged, defect)

Description

[adifran]

Attachment: test.webm

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0
Build ID: 20160614004007

Steps to reproduce:

1. Go to simpl.info/mr
2. Record audio and video
3. Play back recorded media
I'm on a Windows 10, 64x machine, Aurora channel 49.0a2


Actual results:

The recorded audio is slower than it should be, producing a terrible result. Furthermore there are huge spikes and noises. Something is totally broken. Please check attached video. You can see how I spell numbers from 1 to 10 and state with my hands the current number. The audio is a disaster.


Expected results:

The audio should have been of good quality. This situation cannot get to the stable release, for the good name of Firefox at least...

Comment 1

[Pascal Chevrel:pascalc (PTO until April 26)]

Paul, is that a bug related to your work?

Comment 2

[Paul Adenot (:padenot)]

Please check again in a Nightly builds, this might have been fixed. Please reopen if its not the case.