What is the ``bug where Mac's audio balance is biased to the left or right'' that Apple has left unattended for over 10 years?



There is a bug in the Mac that causes the audio balance to be biased to either the left or right side, and it has become a hot topic that this bug has been left unaddressed for over 10 years.

Apple has not fixed the macOS audio left/right balance bug for nearly 10 years | Hacker News

https://news.ycombinator.com/item?id=39367460

Programmer Fabian says, ``It's 2024, but Apple still hasn't fixed the ``audio left/right balance bug'' in macOS. To automatically fix this bug, use an app called `` Balance Lock .'' 'This app was developed in 2015 and will soon be celebrating its 10th anniversary.' I pointed out the existence of a bug that biases the game in either direction.




As of January 2013, users have reported an issue where the audio balance changes randomly on Mac. The person who reported the issue at the time said, ``My MacBook Pro (Retina) with OS ” reported.

macos - Audio balance changes randomly in MacBook Pro Retina 15-inch' mid-2012 - Ask Different
https://apple.stackexchange.com/questions/79384/audio-balance-changes-randomly-in-macbook-pro-retina-15-inch-mid-2012



In response, one user wrote, 'Isn't the problem caused by a broken audio cable? Try replacing the audio cable that connects your Mac to the speakers. If the cable is damaged, the signal on the audio channel will be lost. The person who reported the problem said, ``I've already confirmed this. I've tried it with all my earphones, speakers, and Mac's own speakers. When I check the audio balance in System Preferences, I notice a strange Interestingly, you can see that the balance bar has been moved to the left.'

Yet another user wrote, 'When using VoIP apps such as Skype, the audio may only be played from one speaker during a call to avoid microphone interference. Perhaps this has something to do with it. The reporter replied, ``I checked that, but Skype is not installed on my MacBook Pro (Retina) in the first place,'' and explained that neither of these was the cause of the problem. doing.

In response to this post, multiple users reported encountering the same phenomenon, and it was pointed out that a similar bug was reported in Mac OS X v10.2 released in 2002. I am. A bug reported in Mac OS A bug was also reported on the official page . However, Apple has deleted this bug report page at the time of writing.



This problem has also been confirmed in the 2018 model Mac mini, Mac Studio with M1 series, MacBook Pro with M2 Pro, etc., and even at the time of writing this article, there was a problem such as ` `Popping sound coming from the speakers. '' It has been reported on Apple's official developer forum.

The following apps are listed as ways to automatically fix the bug where the audio balance is biased to either the left or right side.

Balance Lock on the Mac App Store
https://apps.apple.com/us/app/balance-lock/id1019371109



GitHub - jamsinclair/ballast: Keep your audio balance from drifting! OSX Status Bar App
https://github.com/jamsinclair/ballast



in Software, Posted by logu_ii