O P E R A T I O N
C H A P T E R 6
Setup VAC in PowerSDR
Next we need to connect PowerSDR to one side of each of these cables. Startup PowerSDR, but do not
click on the
Start
button. Open the Setup Form, click on the Audio Tab and then click on the VAC Sub-
Tab (Figure 169).
Figure 169: Setup Form - Audio Tab, VAC Sub-Tab
Configure the settings as shown above. If your selected Buffer Size setting is too small, you may
experience audio popping or dropping out. Click
Enable VAC
to manually enable the virtual audio
connection or click Auto Enable to automatically enable it when clicking the
DigL
,
DigU
or
DRM
mode
button on the Front Console.
Note 1:
Select a
higher
Sample Rate
than the sample rate of the digital
mode program for best audio quality. In some cases, however, the
digital mode program can not handle format down conversion very
well. In such cases, set the
Sample Rate
to
exactly match
that of
the digital mode program.
Note 2:
Certain
DRM
programs (DReaM, HamPal) require Stereo to be
selected.
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2003-2008 FlexRadio Systems
