ORIGINAL: nesikachad
Mike,
Exactly how does this work?
If you don't have the knowledge and software like liquid_TR you can do this.
The Windows sound recorder is under accessories, entertainment.
Place the microphone by your speaker.
While the video is playing you can record a short wav file starting it just before the aircraft reaches the camera during a close in level pass.
The recording should include the flight just before reaching the camera through just after passing the camera. Usually 2-4 seconds.
you can get the Doppler software at
http://www.sprut.de/electronic/soft/scope.htm . (Goggle can translate to English)
There are several threads in this forum with info on this software.