audio editing question: how to eliminate “high spots”?

[Rick Mac]

Chris,

Audacity just does have what we need.
I created a clipped waveform and the click-pop removal just does not help us. I was holding out hope that it might. Audacity’s tool is designed for click removal for old records.

Go ahead and email me a couple of clips and I will see how Audition handles the task. I have had good results with it in the past.

Later…Rick.

Rick Mac
Director of Audio Production
TCT Network – Directv 377

[Rick Mac]

Chris,

I was reading my previous post and noticed a mistake.
What I ment to say is that Audacity does NOT have the tools needed to fix the distortion.

The past few days I have done testing of several
tools to repair clipped/distorted audio waveforms.

The tools I tested were, Audacity tool, Audition tool,
Waves Noise Reduction Tools, and Sony’s Noise Reduction 2.

What I found was that audacity was a bust, Audition & Waves
fixed light to moderate distortion. Sony’s Noise Reduction 2
plugin did an excellent job of fixing even really bad distortion.

Noise Reduction 2 comes bundled with Sound Forge 9 and is
also available seperately. I would highly recommend this plugin for cleaning up clipped audio.

Just as a disclaimer I would say that the Waves Noise Reduction toolset are more capable than this post may suggest. It has many settings that I did not try. With a bit of tweeking it is a very powerful tool. The Sony tool worked great will default settings, no tweeking.

Regards, Rick.

Rick Mac
Director of Audio Production
TCT Network – Directv 377

[Chrisgleason635]

Hi Rick-

Wow, that sounds great. Thanks for doing all of that tinkering on my behalf. You mentioned that Noise Reduction 2 is available as a seperate plug-in: can I run it from Vegas?

Thanks
Chris

[Rick Mac]

[chrisgleason635] “You mentioned that Noise Reduction 2 is available as a seperate plug-in: can I run it from Vegas?”

Yes it can.

Do your research on pricing. I noticed that at Amazon.com
you can purchase Sound Forge 9 (it includes the NR2 plugin)
cheaper than you can purchase just the plugin by itself from
Sony’s Website. Once the plugin is installed any program that can run direct-x plugins will have access to use it.

Here is a link to the Amazon listing for SF-9.

https://www.amazon.com/gp/product/B000OVNLXS/ref=pd_cp_sw_1/105-6509612-8342033?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-41&pf_rd_r=0SPHZNQFTZSV1BCSWAAB&pf_rd_t=201&pf_rd_p=309530501&pf_rd_i=B000933HTE

When you get your plugin let me know I can will talk you threw how to use it.

Regards, Rik.

Rick Mac
Director of Audio Production
TCT Network – Directv 377

[Chrisgleason635]

Hi Rick-

You and I noticed the same thing– seems strange that the plug-in goes for more than the whole package, but so be it. I just downloaded SF9 and have been tinkering with it– for the life of me, I can’t get the peaks to restore, though. The instructions seem simple and I think I’m following them but it just isn’t working at all.

Any tips?

Chris

[Daan Steijnen]

Hi,

I just did a job on some pretty nasty clipping audio. The worst thing about it was, that the distortion came from the transmitter of my wireless lavier mic and we had the camera on auto… thus the compressor was needly doing its work an making sure all the distorted audio was reduced in signal level, but the audio was abviously still distorted.

I tried to reduce clipping with abobe audition using clip restoration to no avail, probably because of the problem described above, I mean, I think the software looks for peaks in signal level, and it didn’t find any necessary distortion there.

I didn’t try soundforge yet, what I did now is isolate all the distorted audio and eq all the worst frequencies out of it. Still ugly, but much better. Not sure what the client will think of it. haha. I already talked to him about the problem on set though, so he’s prepared.

I’ll try Chris’ method too…

Daan Steijnen
Camjo
http://www.bigshots.nl

[John Rofrano]

Hi Daan, Try iZotope RX. I’ve gotten some really good results with audio that was clipped at the mixer input which was well within my recorded levels.

~jr

http://www.johnrofrano.com
http://www.vasst.com