We can increase the resolution here by factors of 2 with the
computational complexity also going up by a factor of 2 each time.
ALSO: if you go as much as twice as deep (a factor of 8 rather than a
factor of 4) the increase in video latency becomes absolutely
immediately apparent. You will hear a sound and a noticeable amount of
time later, the display will correspond to the sound. There is not
such thing as a free lunch.
Bob
N4Hy
Robert McGwier wrote:
Trevor Smithers wrote:
and watch the CW note on the display get 4 times narrower.
I see no change whatsoever with Polyphase enabled. Appears to make no
difference enabled or not.
Trevor G0KTN
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I attach my "worst case difference" screen captures. One is blackham
harris operating on a pure tone. The other is polyphase operating on
exactly the same tone. I presume you can see the difference here.
Alex was smart enough to claim a lot and then not show you much by now
allowing you, under ANY circumstances to zoom in enough that a single
bin of the FFT in the spectrum takes up more than one pixel. This is
what you get. As I said, the area under the curve is 4 times less
with polyphase.
Bob
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