[Scott Dorsey]

Billy Gold wrote:
I have a recording that I am trying to restore that has broadband noise from
about 20-200 Hz. All of the frequency components of the mix are well above
his level (starting at 600 Hz), but no matter what I try to do to eliminate
the noise, the mix ends up fairly thin and tinny. I've tried everything
from noise reduction samples of just the noise applied and filtered to just
cutting out the noise with the EQ, but it seems the remainder of the
recording is tainted as I said. Upon listening to the inverse of the mix
(just the noise), I don't hear nor even see any of the desired notes so I
don't know why I'm ending up with something so flat. Is there any way I can
get around it and get the original sound of the recording back (minus the
low freq background noise of course)? thanks.

What is the recording of and how did the noise get there?

If the noise is aperiodic about the only thing you can do is use broadband
NR systems, which are basically a set of gates on narrow frequency bands
and some rule about opening the gate (which may be more complex than a
simple threshold). CEDAR makes a good one, Waves makes one that works well
but takes more tweaking.

If you lose everything below 600 Hz, everything will sound thin and tinny.
Even a tenor voice has a lot of stuff even going below 300 Hz.
--scott


--
"C'est un Nagra. C'est suisse, et tres, tres precis."