Volume Mixer Alternatives for Mac: Top 4 Volume Control Tools and similar apps | AlternativeTo
Manage application specific audio with Sound Control for Mac
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Manage application specific audio with Sound Control for Mac
Amazon.com: Elgato USB-C Stream Deck +, Audio Mixer, Production Console and Studio Controller for Content Creators, Streaming, Gaming, with Customizable Touch Strip dials and LCD Keys, Works with Mac and PC :
audio - Is there a way to mute sound from one application on macOS? - Ask Different