iZotope RX 3 vs. Adobe Audition, Part 1: Declipping and Crackle-and-Pop Removal--UPDATED with iZotope Tutorial!
In this first installment of a two-part series, Jan Ozer compares the declipping and crackle and pop-removal features in iZotope's new RX 3 pro audio editor to the parallel features in Adobe Audition CC.
Both programs operate in either waveform or spectral view and let you draw a region around the offending audio to remove just that (Figure 4, below); iZotope’s simply worked better. Specifically, iZotope’s filter removed the offending noise more completely. Though each edit took a few seconds longer to process, iZotope removed the pop completely in a single pass; often Audition required several passes and on the toughest regions, it didn’t completely remove the pops.
Figure 4. Removing the loudest pop in RX 3’s spectral view. (Click on the image above to see a full-rez version of the screenshot.)
Though I’m very familiar with Audition’s Auto Heal function (and considered it best-in-class until I tested iZotope’s), I was able to produce a much cleaner result with the iZotope filter after viewing tutorials for the Declick and Spectral repair processes here. I probably could have cleaned up the Audition files a bit more than what the sample file reflects, but I had already spent much more time with Audition than with RX 3, and as they say, time is money.
I will say that iZotope should take a good hard look at Audition’s Healing Brush tool, which worked very efficiently and intuitively. Still, iZotope got more clicks out faster and was able to remove noise completely from the worst problem areas, which neither Audition version was able to do.
Check out the crackle-and-pop audio files below. Top to bottom: the original source file, the iZotope RX3 version, the Adobe Audition CS6 version, and the Adobe Audition CC version.
That’s all for this review; next time out, I’ll look at noise removal, and removing reverb and echo.
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