Here's another system:
http://radio.bhinstrumentation.co.uk/html/sound_file_demonstration.html
David
G3UNA
What you really need is a method of identifying the actual ssb speech
waveform, extracting the noise
from it leaving the signal in the clear. There is a company in Germany
that produces an outboard unit
that I find very effective without the degradation in the audio. Audio
demo here
http://www.home.vrweb.de/michels/sound_demo.htm
I use a pair of their DX-21 kit modules and feed the left/right stereo
output into each one so I get
independent NR control of each channel.
There is an Eham review here http://www.eham.net/reviews/review/43017
By using a pair I also retain the audio fx and binaural I-Q.
You would need to contact the company about the availability of the DX21
modules as I see they are no
longer shown on the site.
I find the combination of a receiving antenna (I use a rotatable 1530
loop) and the outboard noise
reduction very effective on 80/160 grey line SSB weak signal work for
instance.
Anyway, something to think about.
73 to all
Trevor G0KTN
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