On Wed, Nov 2, 2011 at 6:58 PM, Leif Asbrink wrote:
> ...I am convinced that any processing that could be made on an audio
> stream could
> be made efficient enough to run in real time on a modern (super)
> computer...
>
==
There is a lot of literature on this subject, just a Google away. The
Hello Dan,
> I have read, and now believe, that analog rigs with
> their crystal filters lengthen the noise pulses,
> making them harder to get rid of
Yes. That is absolutely true. Here is an extreme example:
http://www.sm5bsz.com/lir/recordings/static-rain.htm
Static rain needs a sampling
Hello Bill,
> Part of the problem may be a matter of PC processing power forreal-time
> noise removal. I use audio editing software on my PC that does an
> outstanding job of removing complex noise from audio recordings.
> However, it takes over 10 seconds to clean-up 1 second from a recording,
On Wed, Nov 2, 2011 at 10:40 AM, K0DAN wrote:
> ...Maybe our expectations of SDR are exaggerated...
===
Well, it doesn't really have anything to do with SDR. Just about all radios
today have DSP, and in fact the DSP in some superhet radios has more
processing power than most current SDRs.
N
well, I have to 'chime in..' after hesitating...
to me, 'it depends..' on what noise you're trying to get rid ofI spend
most of my time on 160m cw, but in the suburbs with all sorts of 'mystery
signals'...using small receiving antennas, which require external
pre-amps...it's a curious mix
John,
I suggest reading the following links to understand how DDUtil works and how
to connect hardware and other software programs to follow PSDR.
http://k5fr.com/ddutilwiki/index.php?title=Design_Concept
http://k5fr.com/ddutilwiki/index.php?title=Setup
http://k5fr.com/ddutilwiki/index.php?title=
This thread has had many good points. I have been underwhelmed with most
Noise Blankers, DSP's, Noise Reducers, ANF's, etc. They work a little, but
most seem to create as many problems as they solve. This is my experience
with Flex as well as some recent Yaesu, Kenwood, Icom, etc. rigs. Maybe ou
Part of the problem may be a matter of PC processing power forreal-time
noise removal. I use audio editing software on my PC that does an
outstanding job of removing complex noise from audio recordings.
However, it takes over 10 seconds to clean-up 1 second from a recording,
even on a high-end
I think a part of the problem with NR and NB is expectations, situations
and implementation limitations, both on the part of users and implementors.
I have not seen a NR function on any radio that seemed to live up to
my wildest dream expectations.
I agree that the current PSDR NR doesn't se
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