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< h1 > Audio input plugin< / h1 >
< h2 > Introduction< / h2 >
This input sample source plugin gets its samples from an audio device.
< h2 > Interface< / h2 >
< h3 > 1: Start/Stop< / h3 >
Device start / stop button.
- Blue triangle icon: device is ready and can be started
- Green square icon: device is running and can be stopped
- Magenta (or pink) square icon: an error occurred. In the case the device was accidentally disconnected you may click on the icon, plug back in and start again.
< h3 > 2: Device< / h3 >
The audio device to use.
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< h3 > 3: Refresh devices< / h3 >
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Refresh the list of audio devices.
< h3 > 4: Audio sample rate< / h3 >
Audio sample rate in Hz (Sa/s).
< h3 > 5: Decimation< / h3 >
A decimation factor to apply to the audio data. The baseband sample rate will be the audio sample, divided by this decimation factor.
< h3 > 6: Volume< / h3 >
A control to set the input volume. This is not supported by all input audio devices.
< h3 > 7: Channel Map< / h3 >
This controls how the left and right stereo audio channels map on to the IQ channels.
* I=L, Q=0 - The left audio channel is driven to the I channel. The Q channel is set to 0.
* I=R, Q=0 - The right audio channel is driven to the I channel. The Q channel is set to 0.
* I=L, Q=R - The left audio channel is driven to the I channel. The right audio channel is driven to the Q channel.
* I=R, Q=L - The right audio channel is driven to the I channel. The left audio channel is driven to the Q channel.
