WiNRADiO G65DDC User’s Guide
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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.
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.
Audio Buffering
The audio signal resulting from the receiver filtering and demodulation process
is sent to a Windows multimedia output device, i.e. in most cases the PC
sound card. Prior to this, the audio data is buffered in order to avoid potential
drop-outs due to other background processes taking place by the PC, which
may cause an irregular data rate.
While the buffering removes drop-outs, it introduces a certain delay (latency)
to the output audio.