Instruction Manual

860 Improving Audio Performance
System Configuration
Note: If you are playing back 32-bit or 64-bit audio at high sample rates
(and high latency sizes), the disk I/O buffer size in the Advanced tab of the
Audio Options dialog (Options-Audio command) may need to be
increased to handle this extra disk streaming throughput. A too small disk I/
O buffer size can result in dropouts or clicks during audio playback of such
content. If so try a higher I/O buffer size like 256 or 512.
See Bit Depths, and Float Resolution for more information about 64-bit files.
To Choose an Importing Bit Depth
1. Use the Options-Global command to open the Global Options dialog.
2. On the Audio Data tab, under File Bit Depths, change the Import Bit
Depth field to the desired number. You can choose the Original option
to import the files at their current bit depth.
3. Click OK.
This process changes the default import bit depth, which appears in the
Import Audio dialog. You can override this value for one import process at a
time by changing the value in the Import Audio dialog.
See also SONAR Project File Compatibility Notes.
Bit Depths for Exporting Audio
You can choose the bit depth of exported files from SONAR. Unless you
are burning a CD or DVD, or are concerned about storage space, you can
export files at 32 bits (or even 64) to preserve the precision of any audio
processing that was done to the files.
To Choose an Exporting Bit Depth
1. Use the File-Export-Audio command to open the Export Audio dialog.
2. In the Bit Depth field, select the desired number.
3. Choose other options and click OK.
Bit Depths for Rendering Audio
You can choose the bit depth that SONAR uses for such operations as
bouncing tracks, freezing tracks, and applying effects (these processes are
referred to as rendering). This bit depth is set at 32 by default, which allows
large level changes without clipping, and with greater dynamic range,
especially in soft parts of your music. You can also render at 64 bits for
greatest precision.
To Choose a Rendering Bit Depth
1. Use the Options-Global command to open the Global Options dialog.