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Re: beginner needs help with recording

Subject: Re: beginner needs help with recording
From: "Avocet" madl74
Date: Fri Jun 8, 2012 2:12 pm ((PDT))
> I realize that all of you have been doing this at a high level for
> some time


Yes, but we may not all admit to it. :-)

I have a routine for de-hissing using the free Audacity 2.0. You
select a sample of the quietest bit of the recording. I then put this
through a bass roll-off filter which gives a rounded slope of 6 dB per 
octave (on my web site):

I can post a graphic of the curve if this doesn't make sense.

What this does is to make artifacts disappear into the backgroud noise
without producing tinkling.

In Audacity 2.0*,
put this sample into "Effects - Noise Removal", restore the original
(CTRL-Z), select all and run "Noise Removal" with:
  500 Hz
  Try various attack times if you can hear the difference.

If you have an extreme example, take a new sample and do it again
rather than go more than -9dB. It will sound artificial but helps with
species recognition in dodgy recordings.


David Brinicombe
North Devon, UK
Cogito cogito ergo cogito sum - Ambrose Bierce

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