Quick Start Guide

26 M32C DIGITAL RACK MIXER User Manual 27 M32C DIGITAL RACK MIXER User Manual
6. USB Interface Operation Guide
Host system requirements for DN32-USB interface
expansion card
Check the KLARK TEKNIK website at klarkteknik.com for updates of DN32-USB
 rmware or system requirements. Please  nd the recommended hardware/
software minimum con gurations in the speci cations section.
The KLARK TEKNIK DN32-USB High-Performance
32-Channel 24-Bit USB Audio Interface
The DN32-USB card provides 32 channel, bi-directional audio I/O via USB 2.0
to Mac or Windows PC. The simultaneous 32-in, 32-out audio channels enable
extremely powerful studio and live applications. You can run virtual live sound
checks or 32-track high-quality studio recordings, whileat the same time
remote operating your DAW via HUI/MackieControl emulation. Thehigh speed
24-bit signal transmission and ultra-low latency ASIO drivers and CoreAudio
compatibility even allow inserting audio plugins on your PC to perform advanced
outboard processing.
6.1 Con guring the DN32-USB card for use in
theconsole
The console will automatically detect the DN32-USB card during the regular boot
cycle, and it will display the card’s presence in several instances.
The green square in front of “C: USB” indicates that the card is installed and
working properly.
Con guration
After the console has fully booted up, you can access the Setup/Card screen in
your remote software to view the current channel count con guration.
Depending on your application, you may want to select an option other than the
maximum 32 x 32 channel count to preserve system resources.
This mode obviously allows the full potential of the interface to be tapped.
Notethat the computer needs to be able to handle that amount of concurrent I/O
stream without any glitches. Depending on its speed and memory con guration,
someoptimization for audio recording might be required.
It is also possible to run a virtual sound check of all 32 input channels by recording
them directly to a computer during a brief line check. The performers can leave
the stage while you play back the recorded instruments from the hard drive and
tweak the sound accordingly.
32 in / 32 out
Generally, the Card outputs may use any of the available signal sources in the
console (local or AES50) for recording independently. When the M32C is used in
a quasi in-line mode, the card with connected computer represents a classic tape
machine. In this case, the connected DL16 mic inputs would be selected to feed
the card outputs (see graphic), and all signals are run from the DL16’s preamps
directly to the multi-track recording machine (PC) and from there 1:1 back into
the console’s input channels.
When the console channel inputs are set to Card, the channel Gain control will be a
+/- 12 dB digital trim for the interface card signal, without direct access to any head
amp - which is great for mixdown but would be an issue for recording. So, mixing
and monitoring can be done using the M32C input channel controls, but the actual
mic preamps must now be controlled from the Setup/preamps page, which gives
remote control to every one of the available preamps in the system. Use the Setup/
preamps page to make sure that phantom power is set as needed, and that there is a
reasonable amount of headroom for recording the preamp signals.
TIP: Sometimes it is more convenient to run the sound check while the preamps
are still connected to the M32C input channels. Once you are con dent about the
fundamental settings, you can switch the channel inputs to the DN32-USB Card
inputs for laying the tracks and monitoring the DAW outputs.
If you wish to switch back and forth between the two modes more frequently,
you could consider storing 2 routing scenes, ’DAW’ and ’preamps’. Make sure
Scene Safes are set in a way that all other parameters remain unchanged.