MOTU UltraLite-mk4, Руководство пользователя

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CHAPTER
27
3
Software Installation
OVERVIEW
USB 2.0 class-compliant operation. . . . . . . . . . . . . . . . . . . 27
Software installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Audio drivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
MOTU Discovery app . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
MOTU Pro Audio WebUI Setup for Windows . . . . . . . . . 28
MIDI I/O on Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
MIDI I/O setup on the Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
AudioDesk workstation software . . . . . . . . . . . . . . . . . . . . 30
Working with host audio software. . . . . . . . . . . . . . . . . . . 30
USB 2.0 CLASS-COMPLIANT OPERATION
The UltraLite-mk4 is a USB 2.0 audio class-
compliant device. This means that you can connect
it to your Mac (running OS X 10.8 or higher) with
a USB cable and use it without installing any
software drivers. The computer recognizes the
UltraLite-mk4 as a USB audio device and makes its
inputs and outputs available to your host audio
software. Basic settings, such as the hardware’s
sample rate, are made in either your host software
(Mac) or your system settings (Windows).
☛
In this scenario, the UltraLite-mk4 provides
basic audio input and output, and no software
driver installation is necessary. However, if you
want access to the UltraLite-mk4’s device settings
and mixing capabilities, you will need to run the
software installer, as explained in the next section.
Connection to iOS devices (iPad and iPhone)
Audio-class compliant operation allows you to
connect the UltraLite-mk4 to any iOS device with a
standard camera connection kit adapter. The
UltraLite-mk4 then provides multi-channel audio
I/O to your audio apps. Use your audio app to
configure the number of available audio channels.
SOFTWARE INSTALLATION
If you don’t want to operate the UltraLite-mk4 as a
USB audio class compliant device, install the
software as follows.
Download and run the MOTU Pro Audio
Installer
To download the latest MOTU Pro Audio installer
for Mac or Windows, visit www.motu.com/
download. Follow the directions that the installer
gives you.
☛
We recommend that you run the software
installer
before
you connect the UltraLite-mk4 to
your computer and power it on. This ensures that
all driver components are properly installed in
your system.
AUDIO DRIVERS
The installer provides USB audio drivers for Mac
(CoreAudio) and Windows (ASIO and Wave).
Industry-leading I/O latency performance
On OS X and Windows, the MOTU Pro Audio
driver provides exceptionally low I/O latency
performance for USB operation. For example, with
a 32-sample host buffer size and a sample rate of
96 kHz, the UltraLite-mk4 produces round trip
latency (RTL) performance of 1.83 milliseconds
(ms) over USB on OS X and 1.84 ms on Windows.
RTL is the measurement of the time it takes audio
to pass from an analog input, through a high-
performance DAW host such as Digital Performer,
to an analog output.