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Re: Filtering

Subject: Re: Filtering
From: "Dan Dugan" dandugan_1999
Date: Wed Jun 25, 2008 12:08 pm ((PDT))
Scott Fraser, you wrote,

> Last year I purchased iZotope's RX noise reduction software & have
> found it a tool I can't use. It's not a real time process. It takes a
> noise print and you have some control over amount of noise reduction.
> You have to wait for it to render the file to hear the results, you
> have no control over frequency weighting, & in all cases I found the
> 'one size fits all' approach they present the user with provided
> results which were either insufficiently noise reduced, or which
> degraded the audio by doing too much. I really find I need the
> individual control of multiple frequency bands to obtain noise
> reduction results I can live with. This is for my CD mastering
> business, so the quality demands are critical.

There's an update that they didn't tell us about. Check your version.
It runs as a plug-in to Pro Tools now. They have a choice of real-time
and offline algorithms. I tune it as best I can with the real-time,
then run the offline, which does significantly better.

I've asked them to implement fine-tuning of the threshold curve,
that's really an important thing that's missing. I sent them the
manual for the late-lamented Ionizer.

-Dan Dugan



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