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Figure out which app is making noise, with assistance from SoundSource

When running multi-tasking on your Mac, it may not always be obvious which of your applications is making noise. This can be more of an issue when some of your applications are hidden, running in the background, or positioned across multiple displays.

If an application on your Mac is making noise, but it’s not clear which app it is, SoundSource can help you find the answer. When you hear a sound you would like to trace to its source, click on the SoundSource icon in your menu bar and check in the Applications list.

The Applications list in SoundSource automatically updates to include any applications that have produced sound in the past 60 seconds.

Once you identify the application that is the source of a sound, you can click on the Speaker icon to the right of the application’s name to quickly mute all of its audio output.

For details on SoundSource's main window and application controls, also see the Main Window page in the manual.