For external G303e/G305e models, if connected via USB, the Recording section is not used at all and
the control is greyed out in the receiver's demodulator Setup. (The Recording section is only enabled
if the receiver is used with the WR-G3E-SIO Serial Interface Option.)
For WiNRADiO G313/G315 models, the input is digitized by the receiver's own ADC, and the sound card is needed only
for the output, to drive the speaker(s). In fact, for the internal models (G313i/G315i), the sound card is not
required at all, as a speaker can be connected directly to the audio socket on the receiver card.
Typically, you would access the sound card Playback volume control panel by clicking a speaker icon
in the Windows task bar. From this panel, you can get to the Recording control panel by
selecting Options | Properties | Recording in the top bar menu.
However, the speaker icon may be missing. An alternative way of accessing
the Recording/Playback controls is via the Windows Control Panel. Here you
can also enable/disable the speaker icon.
The table below shows how to enable/disable the speaker icon, and how to get
to the recording/playback controls from within the Windows control panel. The methods
vary depending on the version of Windows you are using: