I’d email the developers and ask them which is better for your needs. BackgroundMusic is a free app that lets you set different volume levels for each app running on macOS. I have an older license for their Airfoil app, which was excellent - and it might actually be more in-line with your needs, since it specifically deals with routing wireless audio. For a much easier way to change the audio input and/or output device, you can add a sound control to the Menu bar and change the devices from it.

Go to the Input tab, and select the device you want to use. I think I demoed SoundSource in the past, but I do not have a license myself. Select the Output tab and select the device you want to use. If I understand SoundSource properly, you’ll never have to switch audio output again, thus superseding your original request. They seem to be macOS audio experts, their other apps all do other highly configurable things and maybe another is more appropriate.īut I think SoundSource will do what you ultimately want to achieve, which is have Slack use the internal speakers as the audio output, and keep the AirPlay speakers for Spotify. All simultaneously.Īnd you can likely just email the developers of SoundSource to make sure it does what I am suggesting. So Spotify can be routed to AirPlay, system sounds to the headphones, and Slack to the internal speaker. You may want to adjust the slider to 50-75 of its full range. Yeah that’s the idea of that app, you can route the audio output of individual apps to their own output source.

Change sound output mac