[LAU] denoising audio files

Thomas Vecchione seablaede at gmail.com
Wed May 23 17:17:58 UTC 2012

On Tue, May 22, 2012 at 3:53 PM, Folderol <folderol at ukfsn.org> wrote:

> On Tue, 22 May 2012 09:43:35 -1000
> david <gnome at hawaii.rr.com> wrote:
> > High dynamic range classical music was exactly what a friend of mine was
> > working with. First step was extremely-well-cleaned vinyl. He recorded
> > them from a high-end turntable through an Audiophile 2496. Then cleaned
> > in gnome wave cleaner. I've heard the digitized versions, and there is
> > no noise in them ...
> Horses for courses...
> I find Audacity works perfectly well for noise reduction on vocal or
> non-distorted guitar tracks. Anything with a lot of treble content seems
> to develop a background 'mush' underneath the audio, but not there in the
> silences.
So after this conversation I decided to go check and see if there had been
improvements in the noise reduction in Audacity.  There has been, and
fairly significant, at least it is usable now for certain materials, but it
still doesn't hold much against other solutions out there.  Granted I only
checked with a boom recording from a shoot I did a little bit back, but yes
there are definitely still artifacts there, and possibly worse is a
reduction(Not huge, but noticable) of consonant sounds reducing
intelligibility slightly, especially on quieter parts.

Still overall much better than it used to be, and if I needed to do a quick
cleanup I might consider it now at least, that is a huge step from where it
was.  But my preferred method is still using some proprietary plugins I own
for this.

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