User Manual

31
USB
USB Audio Interface
The MixPre-3 has an integrated 5-in, 2-out core audio-compatible interface for
use with a Mac or PC computer. For PC users, the MixPre-3 will appear as a 2x2
audio interface unless a specic ASIO driver is installed. The latest ASIO driver
can be downloaded at www.sounddevices.com/support/downloads. See the
MixPre Series Downloads page.
When working with the USB audio from a host computer, it is necessary to
route the USB 1 and USB 2 sources appropriately. Should you want to mix the
USB audio from the host computer with live audio from the MixPre-3’s inputs
to the LR bus, use the channel screen and select input source (Advanced mode
only). To hear the USB host computer audio in the headphones only, switch the
HP preset to USB 1,2.
The MixPre-3 is capable of recording and streaming audio to a USB host
simultaneously. The MixPre-3 is also capable of recording the USB audio
stream out of a computer directly to its SD recorder. This is an amazingly-
useful feature for recording any computer-based audio. See the table below
detailing the MixPre-3’s channel to output assignments.
Channel USB Output Assignment
Channel 1 USB stream 1
Channel 2 USB stream 2
Channel 3 USB stream 3
Unused USB stream 4
Mix bus L USB stream 5
Mix bus R USB stream 6