MOTU 828es, Руководство пользователя

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S O F T W A R E I N S T A L L A T I O N
30
AUDIO DRIVERS
The installer provides Thunderbolt and USB
audio drivers for Mac (CoreAudio) and Windows
(ASIO and Wave).
Thunderbolt support for Mac and Windows
You can connect your MOTU interface to a
Thunderbolt-equipped PC and access up to 128
channels of simultaneous audio input and output
using the MOTU Pro Audio ASIO driver. On Mac
OS, the MOTU Pro Audio Core Audio driver
provides similar high-bandwidth Thunderbolt I/
O for Mac audio applications. On both Mac and
Windows, you will enjoy access to very low buffer
settings and extremely low I/O latency
performance from your host audio software.
☛
Check motu.com/support for the latest
information regarding PC Thunderbolt compati-
bility, as some PC products are not yet qualified
for use with MOTU Thunderbolt-equipped audio
interfaces.
Industry-leading I/O latency performance
On Mac OS and Windows, the MOTU Pro Audio
driver provides exceptionally low I/O latency
performance for both Thunderbolt and USB
operation. For example, with a 32-sample buffer
size, an 828es interface operating at 96 kHz
produces round trip latency (RTL) performance of
1.9 milliseconds (ms) over Thunderbolt on
Windows and 1.6 ms on Mac OS. 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.
MOTU Pro Audio ASIO Driver
On Windows, to enable the 828es in your ASIO
host software, choose the MOTU Pro Audio ASIO
driver.
Figure 4-1: Choosing the MOTU Pro Audio ASIO driver in Cubase.
WDM / Wave driver support
On Windows, the MOTU Pro Audio driver
includes stereo and multi-channel support (up to
24 channels) for WDM (Wave) compatible audio
software.
Host Buffer Size
When connected to a Windows host, the Host
Buffer Size menu (Figure 4-2 on page 31) is
available in the Device tab (page 12). This setting
determines the amount of latency (delay) you may
hear when live audio is patched through your
Windows audio software. Smaller buffer sizes
produce lower latency, with sizes of 256 samples or
less producing virtually imperceptible delay. Many
host applications report audio hardware I/O
latency, so you can see what happens to the
reported latency when making adjustments to this
setting.