Sound Siphon

Sound Siphon makes your Mac’s audio output available as an audio input device. It allows you to send audio from one application to another, where it can be processed, streamed, or recorded. It's as simple as selecting a microphone in your favorite app. Sound Siphon works with Core Audio to provide this capability to all of your audio apps. As such, it easily integrates into any existing audio-production environment.

Features

• Capture all of your Mac's audio
• Capture specific application audio
• Independently adjust the levels of each application
• Capture application audio mixed together as stereo audio
• Capture discretely with each application's audio in its own channels
• Mute captured applications while capturing

• Fixed crackling audio that could occur on HDMI and DisplayPort when Sound Siphon is active on Mojave.
• Mute output during capture now updates immediately.
• Fixed a problem on Mojave that caused playback to shadow devices to fail after wake from sleep.
• Uninstaller now removes STZAudioBridge.driver on Mojave.
• Fixed microphone capture on Mojave.
• Fixed a crash that could occur when unplugging a device that is in use on Mojave.
• Reduced memory footprint on Mojave.
• Now works with unified input/output devices on Mojave.
• Better handling of sample rate changes on Mojave.