Audio Restoration
IZotope RX is a complete software solution for audio restoration. The editor has created its own algorithms, in order to offer an alternative to the reknowned algorithms from Algorithmix or Noveltech licenced to other soft editors (Merging, Waves, CreamWare, TC Electronic, Sony Oxford, AudioGrabber...), or even to pro solutions such as Algorithmix NoiseFree or reNOVAtor, NoNoise II from SonicStudio and of course Cedar.
RX includes five Modules :
- Hum Removal: Cleans up electrical hum and line noise
- Declipper: Rebuilds clipped audio from overloaded A/D converters and analog gear
- Declicker: Eliminates clicks, crackles, pops and digital impulse noises
- Denoiser: Removes broadband noise with natural sounding results
- Spectral Repair: Fixes intermittent noises, corrupted intervals and even gaps in audio
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Version 2.02 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
Oct 10, 2011 |
New Features
• New ability to import and export markers from the standalone app
Compatibility Changes
• Fixed issue between RX plug-ins and Pro Tools 9.0.5 under OS X
• Added iLok support for all apps and plug-ins (32 and 64-bit, Win & OS X)
• Added support for many Audio Units under OS X when hosted by RX Advanced
• Many fixes to improve stability and performance in both RX plug-ins and the standalone app
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Version 2.01 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
Mar 21, 2011 |
Host compatibility changes
• Added support for Adobe Premiere Pro CS5
• Added VST 3 support
• Improved compatibility with Ableton Live
• Added 64-bit VST 2 support in Reaper under OS X
DSP changes
• Fixed accuracy of latency compensation in Declick module
• Fixed Hum Removal module's learn feature at high sampling rates
Workflow changes
• Added support for RX 1 workflow in main audio display: shift-click-release to adjust the borders of full-bandwidth selections
• Added support for placing the playhead: ctrl-click on the main audio display at any time to place the playhead
• Added support for dragging the current file from the RX 2 application's title bar under OS X
Other changes
• Introduced the new iZotope Crash Reporter to help customers automatically submit crash reports to iZotope for rapid diagnosis & bugfixing
• Greatly improved RX's support for frames in the time ruler, including drop-frame mode
• Better support for Carbon-based plug-ins under OS X, in RX 2.00 some of these plug-ins would display with a blank UI (RX 2 Advanced only)
• Fixed issue when using "Open with" in OS X's Finder to launch RX
• Fixed bug with iZotope authorization where authorizing to a USB flash drive wasn't working properly
• Better support for Unicode characters in RX's "Save As" dialog
• Many minor bugfixes and performance enhancements
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Version 2.0 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
Sep 30, 2010 |
- New Denoiser Algorithms
New Global Smoothing control reduces the distracting, watery artifacts introduced by most denoiser algorithms and a high-frequency enhancement avoids the dullness commonly associated with noise suppression.
- Improved Declick & New Decrackle
Declick features improved click detection and new Decrackle algorithm designed to treat continuous background crackle from vinyl and older media.
- Freehand Selection & Magic Wand
New Lasso, Brush and Magic Wand tools allow natural, freehand selections of problem sounds. Additionally, the Magic Wand can automatically select a sound and its harmonics for incredibly fast editing.
- Improved Batch Processing
Updated batch processor streamlines your workflow by letting you chain multiple modules, process multiple files and use multiple CPUs.
- Intelligent Hum Module
Automatically identify the base frequency of hum for precise removal. The module will even recommend when the Denoiser should be used to more effectively treat certain kinds of hum.
- Session Support
Your edit history is automatically saved when you quit and reloaded when you restart. The entire state of the program including your selection is saved. This new feature also works in the event of a computer crash or power outage, so you can get back up and running immediately.
- Channel and Phase Operations
New Channel Ops module features left/right channel mixing and arbitrary phase rotation operations, both of which are crucial when restoring audio transferred from tape.
- Pre-roll and Post-roll Support
Customize the amount of audio played before and after an edit for context when previewing edits.
- Fade Support
The Gain module now includes support for fades with several fade types.
RX Advanced only new features:
- Adaptive Denoiser Mode
Denoise now features an adaptive mode to automatically adapt to a changing noise profile, especially important for video-post and others who deal with dynamic background noise.
- Deconstruct
This new class of audio manipulation tool intelligently separates audio into tonal and noisy components allowing independent control over each.
- 3rd Party Plug-in Support
Host your DirectX, Audio Unit and VST plug-ins inside of RX taking advantage of RX's spectral selection to process only parts of an audio file. Also, extremely useful when using the Batch Processor and Compare features.
- Zotope Radius
RadiusŪ is iZotope's world class time-stretching and pitch-shifting algorithm. Change the tempo without affecting the pitch or tone of the performance. Instrument attacks, percussive hits, and the sound stage remain untouched, even at extreme stretches.
- Export History as XML
Save a time-stamped history documenting all processing and edits made to a file from the time it was opened. This feature is invaluable for archiving and forensic work.
- Azimuth Alignment
Both automatic and manual azimuth alignment are available for correcting misaligned tape heads in tape restoration.
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Version 1.3 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
Jul 1, 2010 |
* 64-bit Audio Unit support for native operation in 64-bit Logic Pro 9.1 and later
* New peak finding feature will automatically locate exact peaks in the Spectrum Analyzer faster and more effectively than manual zoom
* New shortcut to choose time selection bounds in the RX application: simply listen and press the [ and ] keys during playback to set selection start and end points
* Many minor fixes and performance enhancements
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Version 1.21 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
Jul 3, 2009 |
* Add new "flat top" window type in spectrum analyzer, this is useful for analysis of levels of harmonic or sinusoidal signals
* Many minor bugfixes
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Version 1.20 |
MacOS X UB |
(App, AU, MAS, RTAS, VST) |
May 21, 2009 |
Major New Features:
* Support for markers in WAV and AIFF files in RX application
* Manually edit noise profiles in Denoiser with envelope
* Added visualization for Spectral Repair before/after regions in waveform/spectrogram display
* Added visualization for Declipper thresholds in waveform/spectrogram display
* Major optimizations to RX Denoiser Algorithms B and C
Minor New Features/Improvements:
* Added support for keyboard shortcuts which select a module's preset and apply that module. Useful for quickly switching between module settings (for example when using Spectral Repair repeatedly on large files)
* Declipper threshold can now extend below -8 dB by zooming the histogram window
* Many performance improvements throughout all of RX's processing modules, especially when using RX plug-ins with small buffer sizes