SoundSource has full compatibility with Apple Silicon, with no known issues.
For the moment SoundSource native support for Apple Silicon is only available in the beta release.
Control the settings for your Mac's Output, Input, and Sound Effects audio devices right from your menu bar. Change the volume of any app relative to others, and send individual apps to different audio outputs. Make any audio sound great, with powerful built-in effects, as well as advanced Audio Unit support.
Adjust volume levels for each of your applications, all in one place. Make one app louder or softer than others, or even mute it entirely.
Control exactly where audio plays. Route music from one app to your best speakers, while everything else is heard via your Mac's built-in output.
Use the built-in 10-band equalizer and support for Audio Units to sweeten the sound of individual apps.