Reference Guide

866
Improving Audio Performance
Improving Performance with Digital Audio
There is also an option in the Clips Properties dialog to selectively redraw waveforms for
individual clips that may have a corrupt waveform display (see “To Redraw Waveforms” on page
866).
.INI File Picture Cache Options
3 new INI file variables that are used by picture cache generation and display:
•In Aud.ini:
In the [Aud] section:
EnablePicCacheThreads=1 (default)
This option creates extra background worker threads for the generation of wave pictures when
you load a project. One worker thread is automatically created per CPU/core. Setting
EnablePicCacheThreads=0 reverts back to only using a single thread for picture computation.
If you are running a system with multiple CPU's or cores setting this to 1 can greatly speed up the
computation of pictures.
Notes:
-These threads are only active while the picture is being computed.
-This option is only applicable on multiprocessor/multicore systems.
Also in the [Aud] section:
ComputePicturesWhilePlaying=1 (default)
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 Clip Properties from the pop-up menu to open the Clip
Properties dialog.
3. On the Audio Files tab, click the Recompute Picture(s) button. A dialog appears, asking if you
want to recompute the pictures on the selected clips.