Three Steps To HeavenĮach new generation of iZotope's RX becomes a little more complete in terms of the audio repair tools provided, with a variety of tools that work in the time and frequency domains. This makes it possible to work on the audio in a broadly similar way to manipulating a photo within a photo editor, selecting simple blocks of audio, or carefully outlining just the unwanted noise itself. One of the major strengths of RX is the ability to process or analyse audio using a variety of selection tools which operate in both the time and frequency domains, and in regular and irregular forms. Note the tabs along the top which allow up to 16 files to be open simultaneously in RX3.īut that's still not all for the sound designer RX can be used as a creative tool limited only by the imagination, for generating brand-new sounds by manipulating existing sounds in ingenious ways. For example, I recently used RX2's spectral editor to remove from a recording of an unrepeatable public concert the sound of a chorister fainting and collapsing, leaving only the chorister's bruises as evidence that it ever happened! RX3's advanced spectral repair module in action. But RX3 can also be used to fix a wide range of unavoidable technical issues with present-day recordings too: fixing that one annoying clip on the very best vocal take, removing some of the inevitable background noise from a public performance, minimising the intrinsic mains hum of vintage keyboards or guitar amps, and much more besides. Yes, RX3 can be used to repair and restore vintage recordings, and I've used the previous versions to digitise and restore countless reel-to-reel master tapes that are older than I am, removing hums and whines, correcting dropouts and azimuth errors, reducing tape noise, and so on, all with excellent results.
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With that personal bugbear put aside, I should also point out that calling RX3 an 'audio restoration suite', while perfectly accurate, doesn't really do this software full justice in terms of highlighting the full breadth of its capabilities and applications. What I mean by that is that you'll get far better results - and in far less time - if you address, for example, the causes of hums or buzzes during the original studio recording, rather than trying to remove that hum afterwards with a sophisticated tool like RX3! It's the same with photo-editing software it's far better to take a good picture than try to make a good picture! However, I would urge potential users to look upon it as way of restoring or recovering unrepeatable material, rather than as a means of absolving poor recording skills or techniques. I've been using the RX suite for a good few years now, and have found it to be a remarkably powerful tool, especially when used in its stand-alone mode. While we don't appear to have reviewed its 2010 successor, RX2, we did run an in-depth instructional article on getting the best from it just a few months ago in August 2013 ( /sos/aug13/articles/izotope-rx.htm).
The company's first audio restoration suite released under the RX product name was reviewed in Sound On Sound back in July 2008 ( /sos/jul08/articles/izotoperx.htm). Inevitably, these pioneering concepts and technologies eventually trickle down and become available to a wider audience at lower cost, and iZotope have been one of the leading software providers to run with this baton, deservedly winning a 2013 Engineering Emmy for 'RX audio repair technology'. Specialist companies involved in the audio restoration field (as well as the closely related area of forensic analysis) - for example, the well-known British standard-bearers, CEDAR Audio - have led the way in developing incredibly innovative and sophisticated restoration tools and techniques. The last is a relatively little-known corner of the audio industry but one which has really advanced dramatically over the last 20 years, to the point where it's now possible to correct or conceal very serious technical flaws and faults which would have been utterly disastrous at the end of the last century!
This applies across the whole gamut of computer-based work, but especially to music creation, photographic manipulation and, of course, audio restoration. One of the benefits of the massive processing power now available in modern computers is the ability to manipulate data in ever-more impressive ways, and with ever-greater simplicity and speed.
The latest version of iZotope's RX restoration suite does more than before - and does it faster!
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