Or- Follow these instructions
- Close Volume Mixer and Open a finder window.
- Press Shift+CMD+G
- Paste this /Library/Audio/Plug-Ins/HAL
- Move the Hear.plugin or SoundBunny.plugin to the trash and restart the computer.
Open that app’s setting/preferences and look for an audio option. When you find one check to see if the output device is set to volume mixer. If it’s not, change it.
Open Skype and go to the preferences and select the audio/video tab and change the ringing and speakers options to Volume Mixer.
Double click the master volume icon.
Close both Boom 2 and Volume Mixer then open Volume Mixer First and then Boom 2.
Change the format:
- Open Audio MIDI Setup
- Press the output device that has that issue on the left. Look at the “Format”. Press “Volume Mixer” on the left side and switch the format to match the output device format.