User's Manual

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The
Wave device
drop-down list shows all the installed wave devices:
Windows default
is the Control Panel setting specified under
Start | Settings
| Control Panel | Multimedia Properties | Audio
. If a sound card is specified
in this Control Panel setting for both playback and recording (this is very
likely, but not always necessarily so), then you can simply select
Windows
Default
as the
wave device
for the demodulator. Otherwise, the specific
name of the sound card should be selected. The selected sound card
must
support duplex operation
and the standard 44100 or 48000
samples/second sampling rates, 16 bits per sample, stereo. Most modern
sound cards do satisfy all these conditions, but some cards may have a high
level of distortion at 48000 samples per second; for such cases, the 44100
samples/second sampling rate is provided.
The next parameter to select is the mixer device associated with the already
selected sound card, using the
Mixer device
drop-down list, and the
Mixer
line
(the sound card input line). If the signal is arriving at the sound card via
an external cable, the cable should be physically connected to the
Line
Input
of the sound card. If the receiver is connected internally, most
probably the input would be called
Aux
or
CD Line
.
With some laptops, only the
Microphone
input may be available; in such
case you will need to connect the receiver to this input, and also select this
input in the software.
In the drop-down list of sound card inputs, each line is available either as
normal, or
Reversed
. If the reversed line is selected, this means that the
Right and Left channels (of the sound card stereo input) are to be reversed.
Normally, you should not need to select any of these reverse inputs.
However, there is a very small number of sound cards where the Left and
Right inputs are swapped. Normally, the G3 SERIES Demodulator expects
the receiver output to be connected to the Right sound card input. If it is to