![]() Some applications don't know how to handle high channel counts. ![]() Don't use high sample rates with a high number of channels. Although BlackHole is designed to be extremely efficient at higher channel counts it's possible that your computer might not be able to keep up. Be careful when specifying high channel counts. KNumber_Of_Channels is used to set the number of channels. GCC_PREPROCESSOR_DEFINITIONS='$GCC_PREPROCESSOR_DEFINITIONSĬustomizing Channels, Latency, and Sample Rates These can specified as pre-compiler constants using xcodebuild. kPlugIn_BundleID (note that this must match the target bundleID).To customize BlackHole it is required to change the following constants. GCC_PREPROCESSOR_DEFINITIONS='$GCC_PREPROCESSOR_DEFINITIONS kSomeConstant=value'īe sure to escape any quotation marks when using strings. They can be specified at build time with xcodebuild using GCC_PREPROCESSOR_DEFINITIONS. The following pre-compiler constants may be used to easily customize a build of BlackHole. Restart CoreAudio using sudo launchctl kickstart -kp system/.Copy or move the built BlackHoleXch.driver bundle to /Library/Audio/Plug-Ins/HAL.To request a license contact Existential Audio. Please support our hard work and continued development. Input audio from the corresponding output channelsĭeveloper Guides A license is required for all non-GPLv3 projects.Open receiving application and set input device to "BlackHole".Set output driver to "BlackHole" in sending application.Play audio from another application and monitor or record in your DAW.Open digital audio workstation (DAW) such as GarageBand and set input device to "BlackHole".In Audio MIDI Setup → Audio Devices right-click on the newly created Multi-Output and select "Use This Device For Sound Output".Sudo launchctl kickstart -kp system/įor more specific details visit the Wiki. ![]() Restart CoreAudio with the terminal command: Note that the directory is the root /Library not /Users/user/Library. Rm -R /Library/Audio/Plug-Ins/HAL/BlackHoleXch.driverīe sure to replace X with either 2, 16, or 64. Uninstallation Instructions Option 1: Use Uninstallerĭelete the BlackHole driver with the terminal command: Installation Instructions Option 1: Download Installer No kernel extensions or modifications to system security necessary.Compatible with macOS 10.10 Yosemite and newer.Customizable mirror device to allow for a hidden input or output.Customizable channel count, latency, hidden devices.Builds 2, 16, 64, 128, and 256 audio channels versions.Download Installer Join the Discord Server Funding I'm attaching a few screenshots to show my configuration.BlackHole is a modern macOS virtual audio loopback driver that allows applications to pass audio to other applications with zero additional latency. But if I use system's screenshot tool with BlackHole 2ch as the sound option, it records the sound without any problem. When I then record a video, there's no sound on it whatsoever. ![]() YouTube or Spotify), the bars in OBS don't show anything. When I play some music in the background (e.g. * Multi-Output device from above enabled as the default system's output * Multi-Output device created in the MIDI Setup ( * BlackHole 2ch installed and properly visible in the system I use Macbook Air M1 with MacOS 12.3 Monterey. I tried almost everything I could possibly find in different tutorials (from this forum and YouTube), but no luck so far. I'm having hard time trying to record my system audio. It's my first try of recording / streaming my screen as well. I'm rather new to OBS and related software.
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