Lynx Studio LT-USB User Manual

Page 34

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Page 34 of 45

8.4.1.2 Multi-Channel Surround playback

Surround-sound material can be played and distributed to multiple outputs on the Aurora.
The playback software must have an option for decoding and playing back surround-encoded
material. The playback software should be set up to use the appropriate Aurora playback
device. In some cases, the software will use the Operating System default audio device set in
the Windows Sound control panel.

In OSX, the distribution of surround channels can be set by the user from Audio MIDI setup
> Configure Speakers > MultiChannel.

When multi-channel interleaved material is played in Windows, then the audio will be
distributed to the Aurora outputs according to the following scheme:

Channel Name

5.1 Output

7.1 Output

Front Left

1

1

Front Right

2

2

Front Center

3

3

Sub (LFE)

4

4

Surround Left

5

5

Surround Right

6

6

Aux Left

N/A

7

Aux Right

N/A

8

8.4.1.3 ASIO Applications

When using an application that supports the ASIO driver standard, one must specify the
Aurora ASIO driver as the appropriate audio device. Once that is established, multiple stereo
input and output devices will be available for use within the application. Please note: the
channel mode selected for the Aurora will determine the type and number of I/O devices
available, but within ASIO they will always be presented as multiple stereo devices, never as
8-channel devices like with WDM.

When using an ASIO compatible program, the appropriate ASIO device must be selected
from a settings or options menu in the application. The correct choice would be “ASIO Lynx
Aurora LT-USB”.

Many ASIO applications provide access to an ASIO Control Panel for the device being used.
For an LT-USB equipped Aurora, this button will launch the Lynx LT-USB Control Panel.

From this panel, the ASIO buffer size and system latency can be established conveniently
within the audio software application.

8.4.1.4 Controlling Latency by Changing the Buffer Size

Latency in an audio interface can be defined as the time required to process a sample from an
application to the interface’s audio output. A number of factors determine the achievable

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