System information
Item Description
Default  rear playback 
device
Choose the device that you  want to use for playing the rear channels 
of a 5.1 surround project.
Default  center and LFE 
playback device
Choose the device that you  want to use for playing the center and 
low-frequency effect channels of  a 5.1 surround project.
Playback  buffering 
(seconds)
Drag the slider to adjust the amount  of buffering that occurs before 
starting playback.
The larger the number, the more buffering   occurs during playback. 
This value must be as low as possible without  gapping. To set it, start 
at .25 and play back a typical song. Move some  of the track faders. 
If the playback gaps at all, try increasing this  slider in small 
increments until the gapping goes away.
If you simply  cannot get playback to be free of gapping, you need to 
either decrease  the number of tracks you are trying to play 
simultaneously, install more  RAM in your computer so you can 
increase buffering, buy a faster access  hard drive, or minimize the 
number of DirectX plug-ins you are trying  to use simultaneously.
Enable track buffering Select this check box and drag the Track  buffering slider if you want 
to adjust the amount of audio that  is prerendered ahead of the 
cursor position.
When the check box is selected, a separate processing  thread is used 
to render audio from tracks. On multiprocessor or multicore  
computers, a thread will be created for each logical processor, 
resulting  in improved track counts, improved performance with lower 
latency, and  faster audio rendering.
When the check box is cleared, a single processing  thread is used to 
render audio from tracks and busses.
Default  audio recording 
device
Choose the device that you want to use  for recording sound data.
Selecting  the Microsoft  Sound Mapper allows the operating  system 
to select an appropriate device to use for the current sound data.
Automatically  detect 
and offset for hardware 
recording latency
Select the check box to automatically  compensate for offset between 
the time you initiate recording and when  your sound card starts 
recording.
Clear the check box and  drag the User Offset slider to  specify an 
offset value (hold Ctrl while dragging for fine adjustment).
Advanced Clicking this button opens the Advanced  Audio Preferences dialog. 
For more information, see "Advanced Audio Preferences" on page 
596.
Default  All Click on the  Default All button to restore all Audio preferences to  the 
default settings.
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