The sound gets distorted when played video on 2X
Categories
(Core :: Audio/Video: Playback, defect, P3)
Tracking
()
People
(Reporter: u681734, Unassigned, NeedInfo)
References
Details
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:86.0) Gecko/20100101 Firefox/86.0
Steps to reproduce:
I played udemy video on 2X speed.
Actual results:
The sound has gotten distorted.
Expected results:
The sound should have been played without distorted sound.
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Comment 1•4 years ago
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The Bugbug bot thinks this bug should belong to the 'Core::Audio/Video: Playback' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.
Reporter, if you're monitoring this bug, could you expand one what specific distortions you're hearing?
Chun-Min, are you aware of any issues here? I know some work was done in bug 1427267.
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Comment 3•4 years ago
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I'm also facing this issue, seems like this is not specific to Udemy, it's affected for all DRM content playback, whenever any DRM video content is played at 1.75x or 2x speed the audio is stuttering,
Note: In Chrome, this is working fine, only in firefox I'm facing this.
I'm experiencing the same thing. On YouTube, I don't experience this behavior, but on Udemy, playing anything above 1X causes distortion making it an unbearable experience.
This is on macOS Big Sur, 11.3.1, using Firefox Developer Edition, 91.0b8 (64-bit).
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Comment 5•3 years ago
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Hey everyone,
I'm also experiencing the same issue with Udemy DRM content played at 1.75x speed or more.
Microsoft Windows [Version 10.0.19041.1237]
Firefox 92.0.1
(In reply to periquitopimpim from comment #5)
Hey everyone,
I'm also experiencing the same issue with Udemy DRM content played at 1.75x speed or more.
Microsoft Windows [Version 10.0.19041.1237]
Firefox 92.0.1
Could you navigate to about:config and change the media.eme.max-throughput-ms preference to 300 and let me know if that helps with the isssue? Thanks.
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Comment 7•3 years ago
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Hello, thanks for replying. I changed the setting but it didn't appear to worsen or lessen the problem.
Note: this issue does not happen with edge browser on the same PC
Sorry, I overlooked that said pref won't affect Firefox 92. It only affects 93 and later. If you're willing to test in beta or nighlty, I'd be interested to know if changing the pref helps (if 300 doesn't do anything, you could also try 400).
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Comment 9•3 years ago
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Setting the value to 300 completely resolved the issue for me on 93.0b9 (64-bit). Thank you so much!!!
Thanks, that's useful to know. I'll make a note that we may wish to globally adjust that rate. Historically we've had issues where we'd have problems if the rate is too high, but it seems like it's low enough we're encountering issues such as the ones here.
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Updated•3 years ago
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Description
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