Bug 227920

Summary:	Crackling/popping noises when playing video
Product:	WebKit	Reporter:	Eric Portis <e>
Component:	Media	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED MOVED
Severity:	Normal	CC:	ap
Priority:	P2
Version:	Safari 14
Hardware:	Unspecified
OS:	Unspecified

Description Eric Portis 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?

Comment 1 Eric Portis 2021-07-13 13:49:07 PDT

Feedback Assistant ID: FB9323093

Comment 2 Alexey Proskuryakov 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?

Comment 3 Eric Portis 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

Comment 4 Alexey Proskuryakov 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.