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Subject:Lost Tutorial
Posted by: mjroddy
Date:12/4/2004 12:37:19 PM

I've cross-posted this in the Vegas website, so please forgive me if you've already read this.
I have an ancient (well 1970's) recording of my mum singing. There a lot of hiss on this and I wanted to clean it up a bit for a Christmas present. I've reduced the hiss a bit in the Parametric EQ and boosed the bass and trebble just a little (re-introducing the hiss).
I have SF 7.0 and Sonic Foundry's Noise Reduction 2.0. However, I can't get a handle on NR2.0. I USED to have a tutorial bookmarked, but seem to have lost it somehow. Can anyone point me in the right direction? Thanks much.

Subject:RE: Lost Tutorial
Reply by: rraud
Date:12/4/2004 6:01:20 PM

- Find and select a pause or space with just the tape hiss/extraineous noise you want to attenuate. (a few milliseconds is sufficient)
- Open NR-2.0 and select the Noiseprint tab. Make sure the noiseprint box is checked too.
- Select Preview (you should see a noiseprint graphic appear or change after a few seconds)
- Select General tab.
- Right-click in grey area under "Real-time" and Select all data to audition.
- Adj. parameters for optimum noise reduction with the least side effects. (Too much will cause a "Flanging" type sound.)
- Click OK to process.

If a lot of NR is required it's better run the process twice at a lower dB setting opposed to once at a high dB setting.

Subject:RE: Lost Tutorial
Reply by: mjroddy
Date:12/8/2004 1:53:28 PM

Thanks very much. That's mostly what I was looking for.
I'm still having a tough time, though. After I apply just a small amount (.03-.05 @ -6Db, as I recall) of noise reduction based on the hiss, the overall sound gets more muggy by just a little. Reapply a few times and I'm totally in the mud. Adding a bit of trebble to get my highs back and I'm back to where I started with the hiss. Very frustrating.
But that's something I'll have to experiment with, I guess.
Thanks again for the info.

Subject:RE: Lost Tutorial
Reply by: mpd
Date:12/8/2004 4:51:02 PM

Are you using one of the presets?

The default for fast computers preset is a good starting point. I typically start with that preset, bump up the FFT length, and use Mode 3. Getting a good noiseprint is pretty key, though.

As for hiss, you could follow the NR with a shelving filter and play with the cuttoff. You could also try the multiband dynamic plugiin.

Use the plugin chainer and real-time preview. This makes it pretty easy to try new settings and enable/disable processing.

Subject:RE: Lost Tutorial
Reply by: rraud
Date:12/9/2004 10:54:46 AM

For optimum results, getting an accurate noise print is foremost.
However for real noisy, poorly recorded material, there's not much that can be done. (aka, Polishing a turd)

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