HP Remote Graphics Software 5.4.0 User Guide

6.4.2 Calibrating audio on the Microsoft Windows XP Professional
Sender
The audio signal captured by the Sender is modified by two different device driver volume controls,
and then the master volume level is artificially inserted into the signal. If these volume controls are too
low, you might not hear the audio signal. If they are too high, the signal might be distorted. This section
describes a technique to hand tune the volume controls to reduce the amount of distortion. These
operations should be performed while connected to the Sender through the Receiver.
The Wave line of the volume control is the first volume control to affect the audio signal outside of the
application that generates the signal. Setting this value to the maximum level gives you the most
resolution in your audio signal.
Figure 6-8 Volume Control dialog on page 109 shows the Wave
volume control at its maximum level.
Figure 6-8 Volume Control dialog
The next volume control to adjust is the mixer line in the Recording Control window. The name of this
line varies with different audio devices. See
Configuring audio on the Microsoft Windows XP
Professional Sender on page 105 for information on how to determine the name of this control. For our
example, the control is called Wave Out Mix. Adjust this volume control while playing a sound. At
higher levels, the audio signal gets clamped and the signal becomes distorted. Decrease the level until
the sound becomes clear. On some devices, the mixer volume control does not go to zero. In this case,
the Wave line of the Volume Control will need to be reduced.
Figure 6-9 Recording Control dialog
on page 110 demonstrates the Wave Out Mix level needed to eliminate distortion.
ENWW
Remote audio operation
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