WiNRADiO G33DDC HF Receiver
50
Virtual Sound Card
The
Excalibur Pro
receiver is equipped with an interface to the WiNRADiO
Digital Bridge
™
Virtual Sound Card
.
The Virtual Sound Card (VSC) is a software option designed to transfer
digitized audio signal streams from WiNRADiO receivers directly to other
applications. It does so by creating a Windows multimedia driver which will
make the WiNRADiO receiver appear to the system as another sound card.
Third party software applications which would normally rely on a sound card
input as the signal source (such as various data decoders), can access
digitized data (either undemodulated IF signal or demodulated audio) directly
from the WiNRADiO receiver, eliminating unnecessary conversions between
the digital and analog domains, reducing distortion and improving signal
quality. For more information about the VSC, please refer to the webpage
www.winradio.com/vsc
.
The VSC control buttons become available once the VSC is installed:
Engaging the
VSC
button connects the selected receiver to the virtual sound
card. Using the
IF
button, you can select the entire contents of the
demodulator spectrum to the VSC; the
Audio
button only sends the filtered
and demodulated audio.
The VSC IF signal is sent in I/Q (in-phase and quadrature) form, 16 bit, stereo.
The I/Q outputs are at baseband (zero frequency) and the target application
must be able to accept these parameters. Any demodulation mode may be
selected for the IF output - this setting is not relevant as the VSC IF output
sends a raw spectrum without any filtering or demodulation.
The sampling rates for both the VSC audio and IF outputs can be set
independently, using the VSC Set-up function under the Options top
menu bar.
