Visual Circuits Harmony 4E, User Manual

Page: 27 / 50

Editing Driver Settings
17
Performance
BufferSizePerChannel
Amount of RAM allocated for each channel.
A larger buffer supports larger minimum file reads which reduces
hard drive seeking.
Default = 400000 hex, high performance playback (optimal)
recommended.
Range = 100000-800000 hex
MaxDisks
This parameter sets the number of disk read threads.
The channels are divided into maxdisks groups, and
each group must play off a different physical drive.
Default = 1, Single MPEG storage drive (normal operation).
Range = 1-4
See
Dual-Card Servers on page 21 for more information.
MaxFileRead
Set the largest file read the driver will perform.
It must be larger than minfileread.
Setting maxfileread to a half of BufferSizePerChannel is
recommended.
Default = 200000 hex
Range = Fits evenly in BufferSizePerChannel
MinFileRead
Sets the smallest file read size the driver will manage.
The larger the minfileread is, the less HD seeking there will be.
Setting minfileread to a quarter of BufferSizePerChannel (half
MaxFileRead) is recommended.
Default = 100000 hex
Range = Fits evenly in BufferSizePerChannel