Reference Guide

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Initialization files
Initialization file format
MMCSSTaskKey=
<task name>
Name Pro Audio By default, SONAR uses the MMCSS task profile
named Pro Audio. If desired, you can instruct
SONAR to use a custom MMCSS task profile.
ManageASIOThreadPriority=
<0 or 1>
Integer 1 This determines whether SONAR manages the
ASIO thread priority when necessary. This
defaults to 1.
EnableCacheWriteThru=
<0 or 1>
Boolean 1 This variable enables disk write thru caching.
When write thru caching is on, data recorded to
wave files is written to the hard disk immediately,
circumventing the hardware disk cache. Having
write thru caching off can be more efficient for disk
I/O but can result in data loss if your system
crashes.
RealtimePreroll=<0 or 1> Boolean 0 This variable specifies whether preroll buffers are
pumped as fast as possible or in real-time.
Prerolling in realtime may improve buffering and
CPU load when using hardware DSP solutions
such as the Universal Audio UAD-1 or Focusrite
Liquid Mix.
WaveInBuffers=<2 - 8> Integer 8 When using the External Insert plug-in alongside
the original dry signal in WDM mode, you might
notice a flanging or flamming effect. To minimize
this effect, we recommend that you set the
WaveInBuffers Aud.ini variable to 2.
Note: Setting the value to 2 might have an
adverse effect with certain audio hardware,
causing recording to drop out. If this occurs, reset
the value to 8 and try using ASIO drivers if your
hardware has ASIO support.
ThreadSchedulingModel=
<0 - 2>
Integer 1 This variable goes in the [Wave] section and
controls the interaction of the main audio thread
and worker threads on multiprocessor systems
when the Use Multiprocessing Engine option is
enabled. Depending on the system, a particular
model may result in less glitching and better
overall performance. The values are as follows:
0 = Same as previous versions of SONAR.
1 = (default) Better thread balance. Model is more
efficient and can provide cycles for other tasks.
2 = Additional worker thread is created. This may
result in improvement with Quad processor
systems or higher. Not recommended for Dual
processor systems.
Variable Type Default Value What it does
Table 224. Aud.ini (Continued)