Beta Address: http://blish.org/sdrdxdoc/playbackaiq.html
4.26 - Audio IQ Playback
4.26.1 - System Requirements
4.26.2 - Usage
On the Mac, select SoundFlower 2-channel as your input device in the dialog. In the software playing back the audio (e.g. VLC or iTunes, etc.), select SoundFlower 2-channel as your output device. Make sure that the output volume is turned well up on the playback software.
Set the center frequency (bottom frequency widget) to the known center frequency of the recording; you can tune using the upper, demodulator widget or by clicking in the RF display.
At this point, the audio I/Q data should be playing back. Things a little weird? Try changing the LR Swap state in the dialog available with →Right-click . This exchanges the left audio channel with the right audio channel.
Now you can just tune around as normal (except for changing the center frequency!) set any demodulation mode you like, and so on. You can press in order to reduce any center spike imbalance that may be present.
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