RESOLVED MOVED 227920
Crackling/popping noises when playing video 
https://bugs.webkit.org/show_bug.cgi?id=227920
Summary Crackling/popping noises when playing video
Eric Portis
Reported 2021-07-13 13:48:08 PDT
Playing the following video in Safari on macOS 11+ and iOS 14+, it has audible crackling/popping: https://res.cloudinary.com/scv/video/upload/small2.mp4 In Chrome, or on earlier macOS/iOS versions, it does not. I think this is the same issue reported by many people here: https://discussions.apple.com/thread/252705782?page=2, but I couldn't find an open WebKit issue about it. I will also submit via Feedback Assistant, and post the ID# here. Is there anything anyone can share about the root cause, or possible workarounds?
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Eric Portis
Comment 1 2021-07-13 13:49:07 PDT
Feedback Assistant ID: FB9323093
Alexey Proskuryakov
Comment 2 2021-07-13 22:45:36 PDT
I cannot reproduce this on an M1 Mac with macOS 11.5 beta. Could you please clarify if you can only reproduce in Safari, or in QuickTime Player too?
Eric Portis
Comment 3 2021-07-13 23:01:27 PDT
I can reproduce in: Big Sur 11.3 running on a 2017 13" Intel MacBook Pro - Safari 14.1 on macOS - Safari Technology Preview 127 - Quicktime Player 10.5 iOS 14.6 running on an iPhone 12 mini - Mobile Safari 14.1.1 - opening the video in the Files app
Alexey Proskuryakov
Comment 4 2021-07-14 12:12:25 PDT
Thank you. Given that this reproduces outside WebKit, this must be an issue in underlying system frameworks below us. Thank you for the report! This will continue to be investigated by Apple.
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