CAKEWALK sonar x3, Reference Manual

Page: 1319 / 2094

1319
Improving performance with digital audio
Improving audio performance
This option allows waveform pictures to be computed in the background while audio playback is
in progress. Most modern computers should be able to handle this load with no problems. Note
that work is only done while new pictures are actually being computed—once the pictures are
finished rendering there is no overhead.
• In
Cakewalk.ini
:
In the
[WinCake]
section:
ProgressiveWavePictures=1
[default]
This option enables progressive display of waveform pictures. When enabled you will see
pictures being displayed in the clips view dynamically as they are being computed. The
waveforms will update in the background when the application is idle. If the
ComputePicturesWhilePlaying
flag is set to 1 , waveforms will continue being displayed
progressively even while audio playback is in progress. This can save time waiting for a
complete picture to be finished before you can see it.
To redraw waveforms
1. Select the clips that you want to redraw.
2. Right-click a selected clip, and choose Associated Audio Files on the pop-up menu to open the
Associated Audio Files dialog box.
3. Click the Recompute Picture(s) button. A dialog box appears, asking if you want to recompute
the pictures on the selected clips.
4. Click OK .
Improving recording performance
EnableCacheWriteThru=<0 or 1>, default = 1
This
Aud.ini
variable enables disk write thru caching, on by default. 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.
MIDI Prepare Buffer Size and automation
If your project contains several track/clip automation envelopes, setting your MIDI playback buffer
size too low (in
Edit > Preferences > MIDI - Playback and Recording ) can cause audio to crackle
if your audio latency is also set very low. This problem will be somewhat worse if you enable
multiprocessing in the audio engine. To minimize or eliminate these crackles, please be sure to keep
your MIDI playback buffers at or above the default setting of 250 msec.