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ColibriDDC User Manual
© 2022 Expert Electronics
ExpertSDR2 SOFTWARE DESCRIPTION
3.3.2.1
Sound card
In the Sound card category, you can see the sound card settings.
Note:
·
Signal output delay via the sound card can reach 250-500 ms. It can be adjusted with buffer
size (smaller values equal lower delay) or selecting different Audio driver (MME – the biggest
latency / WDMKS – moderate latency / ASIO – minimal latency).
·
Enable - Checkbox to enable PC's sound card.
Set the Enable checkbox to enable sound output via the sound card.
·
Driver – Select the sound card's driver type.
·
Out put – Select the sound card's physical output.
·
Channels – Select the amount of active sound card's channels.
·
Sample rat e – Sampling frequency.
·
Buf f er size – Buffer size.
·
Lat ency – signal delay time.
Note:
·
Before you'll enable the Sound card by the Enable checkbox, make sure that all sound
devices settings are set correctly.
3.3.2.2
Line output
In the Line out put category you can see the settings of the sound card or virtual audio cables,
which could be used for linear sound output, separately for RX1 and RX2 receivers.
Note:
·
Sound output via the Line output will be simultaneous with the sound output from the
receiver.
·
Line output volume has a constant max value and cannot be changed by the operator.
·
As a rule sound output via the Line output is used for recording communications in contests
and other purposes.
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