CoreSound

Note: this driverset is available for Mac only.

The CoreSound driverset makes Core Audio audio and MIDI devices available for use by MultitrackStudio.

CoreSound Properties window (Pro Plus edition, Professional has only one MIDI In and two MIDI Out devices)

In the Audio In Device section you can select the audio device that will be used for recording.
In the Audio Out Device section you can select the audio device that will be used for playback.
It's recommended to use Audio In and Out devices which are part of the same sound device. If they're not their samplerates probably aren't equal. This can be quite a problem, as recorded tracks will slowly go out-of-sync during playback. To solve this problem you can create an 'aggregate device' using the Audio MIDI Setup application, and use this device in MultitrackStudio. OS X will then take care of syncing the two devices.

The Latency box determines the time it takes before you hear the sound when playing MIDI software instruments live or when using Soft Monitoring ('live effects'). You'll hear glitches if this setting is too low.

Your sound device may not support latencies as low as the one you've selected. The actual latency appears in the Studio menu's Devices window.

In the MIDI In Devices section you can select the device that is used for MIDI recording.

In the MIDI Out Devices section you can select the device that is used for MIDI playback.

If you have a hardware control surface you can select the MIDI devices it is connected to in the Control Surface section.

Audio Input/Output Control

Audio Input Control using CoreSound The Audio Input Control and Audio Output Control (available from the Recording Options section and the Studio menu respectively) determine which in/outputs will be used. The listed in/outputs will be used from top to bottom. They can be reordered by dragging and dropping them. The Automatically assign channels to tracks button (Audio Input Control only) can be switched off to let you assign channels to tracks manually. The Control Panel button pops up the Sound page of the System Preferences, where you can adjust recording levels etc. if the sound device supports this.