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Gear / Technical Help => Post-Processing, Computer / Streaming / Internet Devices & Related Activity => Topic started by: realkuka on April 08, 2011, 08:36:18 PM

Title: Heeeelp!!!! i don´t know how to fix clipping
Post by: realkuka on April 08, 2011, 08:36:18 PM

Hi,

Really I need your help, I have a Preamp CA9200, I recorded a concert of one of my favourites band, deftones in lollapalooza festival in Chile, but I didn´t checked that the gain of the preamp was very high, so I got a lot of clipping in my recording :'( :'( :'( :'(, this is a sample:

http://www.megaupload.com/?d=TOBH7F66

Is threre any way to fix it, I tried using izotope rx, normalizing, etc... I read that isn´t too much to do, but this recording is very special so I want to try to save it, or reduce the problem.

Please I any help will be appreciated.

Best Regards

Title: Re: Heeeelp!!!! i don´t know how to fix clipping
Post by: page on April 08, 2011, 11:34:24 PM

did you reduce the gain on the file in post before encoding it to mp3? It's peaking at about -15 or -10db right now and I'm not sure what you have is digital clipping as much as overloading of a recorder or analog distortion in general (both after listening to it and looking at it in izotope and audacity).

Title: Re: Heeeelp!!!! i don´t know how to fix clipping
Post by: realkuka on April 08, 2011, 11:50:57 PM

thanks for you answered, i took a piece of the original file and i ripped it:

http://www.megaupload.com/?d=TP13CXHE

what do you think?

Title: Re: Heeeelp!!!! i don´t know how to fix clipping
Post by: page on April 09, 2011, 12:38:43 AM

Quote from: realkuka on April 08, 2011, 11:50:57 PM

thanks for you answered, i took a piece of the original file and i ripped it:

http://www.megaupload.com/?d=TP13CXHE

what do you think?

yeah, Im guessing what you have is analog overload, not digital clipping so using a clip restoration tool won't touch that. Only thing I think has potential is using Izotope's Decrackle plugin with a value of high and a strength around 6, and use a skew value that's positive, say around 4. I didn't play around with it a lot to fine tune that, but that's a start and yielded a result which was less-bad, but not good by any metric. What that will do is eliminate that electricity sound that is prominent with really loud sounds at the expense of some brightness. I won't resolve the over compressed effect or any of the other problems. There is definately no quick fix, if one at all. Best of luck.

Title: Re: Heeeelp!!!! i don´t know how to fix clipping
Post by: realkuka on April 09, 2011, 08:42:53 AM

Thank you so much for your help!!