Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
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All shortcuts can be user defined. If there is a conflict in the definition table (the
same keystrokes are specified for more than one function), this will be
highlighted in red. The Default button restores the factory defaults and the
Enable button can be used to enable or disable all shortcuts.
VSC Set-up
The Virtual Sound Card (VSC) is a software option designed to transfer
digitized audio signal streams from WiNRADiO receivers directly to other
applications. For more detailed description please refer to the chapter Virtual
Sound Card (under Function Tabs, the Audio tab).
digitized audio signal streams from WiNRADiO receivers directly to other
applications. For more detailed description please refer to the chapter Virtual
Sound Card (under Function Tabs, the Audio tab).
This function makes it possible to set sampling rates for both the VSC audio
and IF outputs independently, to match the requirements of the target
application.
and IF outputs independently, to match the requirements of the target
application.
The VSC audio data is always 16 bit mono, the IF data is 16 bit stereo (each of
the I and Q components uses its own channel). The buffer size can be
adjusted to control latency, while the buffers count should be set to an
optimum value to avoid drop outs in data due to unequal sampling rates
between the applications.
the I and Q components uses its own channel). The buffer size can be
adjusted to control latency, while the buffers count should be set to an
optimum value to avoid drop outs in data due to unequal sampling rates
between the applications.
Audio Buffering
The audio signal resulting from the receiver filtering and demodulation process
is sent to Windows multimedia output device, i.e. in most cases the PC sound
card. Prior to this, the audio data are buffered in order to avoid potential drop-
outs due to other background processes taking place on the PC, which may
cause irregular data rate.
is sent to Windows multimedia output device, i.e. in most cases the PC sound
card. Prior to this, the audio data are buffered in order to avoid potential drop-
outs due to other background processes taking place on the PC, which may
cause irregular data rate.