Has there been any progress on improving the NR algorithm used in the K3?
A lot of effort is going into this at the moment and we hope to
something ready soon.
73,
Lyle kK7P
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Great news Lyle, hope to see some definite improvements in the next few
firmware releases.
73 de James K2QI
On Mon, Jul 13, 2009 at 3:22 PM, Lyle Johnson k...@wavecable.com wrote:
Has there been any progress on improving the NR algorithm used in the K3?
A lot of effort is going into this at
processing. Try the NR without the
fake stereo, it seems more effective to me.
Rick Braun
KE7VXP
K3 # 2869
- Original Message -
*From:* James Sarte k3jps@gmail.com
*To:* elecraft@mailman.qth.net
*Sent:* Saturday, July 11, 2009 9:06 PM
*Subject:* [Elecraft] K3 noise reduction
Has there been any progress on improving the NR algorithm used in the K3?
As it is, it's only helpful perhaps 2% of the time on SSB with the remaining
98% of it remaining off. I've tried adjusting AGC settings, plus fiddling
with the DSP settings and can never seem to find a happy medium.
Hmm, are Lyle's other irons in the fire being heated for Eric's other
fish to fry? :-)
More seriously, I also would love to see changes to the noise reduction,
particularly to help
with weak signal work. I'm not sure why anyone cares about noise reduction
for
strong signals -- I just turn down
Regarding noise reduction and the BHI products; I've noticed that the BHI
ANEM works substantially better than the K3's NR. For whatever reason,
whenever I switch NR on, the band noise seems to get attenuated slightly,
but then reshaped to resemble noise in a tunnel. It's very tiring to listen
Lyle is looking at the NR code. Let's rest this thread for now.
We'll pop up here when we have something new to try. :-)
73, Eric WA6HHQ
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Don Wilhelm wrote:
Those Noise Reduction algorithms you refer to seem to be quite clever
and effective. They appear to be close to the NR that I have in my
hearing aids which does a great job of extracting speech from noise.
Unfortunately, the NR in my hearing aids also thinks sustained
k6...@foothill.net wrote:
They will notch a fire truck siren down to a tolerable
level
I don't know if I like that or not ;-)
However, they apparently think CW is a fire truck.
I can safely say that for the many years I have on the job, CW is
definitely not a fire truck :-) Drivers
I agree, whatever algorithm BHI uses, it really works.
73
Stewart G3RXQ
On Wed, 29 Apr 2009 16:05:07 -0500, Bill NY9H wrote:
I have two Hear-it speakers from England's BHI company hooked
thru
my microham controller's headphone outputwhich is connected
to
the 7800 the K3.
With a low-
As far as I'm aware there are two companies that produce this technology for
the amateur
market, BHI in the UK and Michels-Engineering in Germany. The german unit is
designed
specifically for the extraction of the speech waveform when surrounded by
noise. BHI is similar
but works with cw as
Trevor,
Those Noise Reduction algorithms you refer to seem to be quite clever
and effective. They appear to be close to the NR that I have in my
hearing aids which does a great job of extracting speech from noise.
Unfortunately, the NR in my hearing aids also thinks sustained musical
notes
I have two Hear-it speakers from England's BHI company hooked thru
my microham controller's headphone outputwhich is connected to
the 7800 the K3.
With a low- mid aggressive setting they don't sound anything but
quieter. (what a concept)... leave them in line most all the time.
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