Mac System Volume Issue

macOS & Mac Apps


I am using a 2020 13-inch MacBook Pro running the latest official version of MacOS. I've noticed a weird behavior that occurs sometimes when I am reading text with Voiceover. Sometimes when listening to a section of text, the volume at which Voiceover speaks gradually decreases (over about 2 seconds), then returns to the original volume I was listening at. this has occurred both when listening to speech on my Mac's built-in speakers and my AirPods. Does anyone else have this issue and know how to fix it?





Submitted by Tyler on Saturday, July 18, 2020

Member of the AppleVis Editorial Team

This is a known bug in macOS. The only workaround is to disable audio ducking by going to VoiceOver Utility > Sound and deselecting the, "Enable audio ducking," checkbox.

If you're using a Nuance voice, changing the voice to Alex may reduce occurrence of the issue, but will not fix it completely.


Submitted by Ishkabibble on Saturday, July 18, 2020

In reply to by Tyler

Thank you so much for the reply. I like the functionality of audio ducking a lot and the volume change bug hasn't affected my user experience in any major ways but thanks so much for the info. :)