

Check the Use column on the right for the devices you want to combine.You can change its name to something specific if desired, for example "InternalAndMOTU".In the Audio Devices window click on the Plus button on the bottom left and choose Create Aggregate Device."open -a 'Audio MIDI Setup'".unixCmd // execute this to launch it You should do this from an user account with administrator privileges. To create one, you have to open the Audio MIDI Setup application (in /Applications/Utilities). macOS provides a way to combine multiple physical devices into a virtual Aggregate Device. Sometimes you might want to use multiple devices for input or output. You can do this in Audio MIDI Setup: "open -a 'Audio MIDI Setup'".unixCmd // execute this to launch it Aggregate device You should set both input and output devices' sample rate to the same value. If the server fails to boot due to sample rate mismatch, an error will be posted accordingly. One possible reason why a server may fail to boot is a mismatch between input and output devices' sample rates, which may occur when using a different device for input and output (which is the case when using a Mac's internal soundcard).

ServerOptions.outDevices // output devices Sample rate mismatch On Windows and macOS you can programmatically obtain a list of available audio devices without booting the server: vices // all devices In case of a dedicated audio interface, you might need to specify a single device, e.g. The following example comes from a MacBook Pro: _("Built-in Microph") If you want to explicitly tell the server to use the internal soundcard, you need to specify both input and output device. macOSīy default the server will boot to your system's default audio devices. NOTE: Device selection won't take effect until the server is (re)booted.
