User Guide

Getting Started with Digi 002108
◆ When Pro Tools LE is running and the Con-
vert and Import dialog is open.
◆ When playing or recording in another audio
application.
◆ When using a third-party audio application
that has an option to keep the WaveDriver
“open” even when you are not playing or re-
cording. (You must close the audio application
before you can open the WaveDriver Settings di-
alog.)
Buffer Size Control
When you play a file from a client audio appli-
cation, the client application divides the file
into little chunks (buffers) and sends each of
these to the WaveDriver. The WaveDriver cop-
ies the client applications buffers to the
Digi 002’s own buffers in a double-buffering
scheme. The Buffer Size control in this dialog al-
lows you to set the size of each of the two buffers
the WaveDriver uses. The following buffer sizes
can be selected:
• 128 samples (default)
• 256 samples
• 512 samples
• 1024 samples
Small buffers have the advantage of low latency
in the record monitor path. (Latency is the time
delay between a signal entering the audio inputs
and leaving the outputs during recording.)
Larger buffers have the advantage of making the
WaveDriver more immune to audio dropouts
during playback and recording. In some third-
party audio applications, performing various
tasks such as maximizing or minimizing win-
dows will interrupt the WaveDriver and create
glitches in the audio. Choosing medium or large
buffers can help alleviate this problem.
Pressing the OK button will cause settings to be
saved in the registry when you shut down or re-
boot Windows. Pressing Cancel restores settings
to what they were before this dialog was
opened. Changing the Buffer Size for the
WaveDriver does not effect the H/W Buffer Size
settings in Pro Tools LE.
Ch 1–2
This control may be set to Analog or Digital. It
determines whether the WaveDriver plays and
records through the Digi 002 analog or digital
I/O. The WaveDriver can only play and record
through channels 1–2 of the Digi 002.