Izotope Rx Reference Manual
iZotope’s award-winning RX 6 Audio Editor is the industry standard for audio repair, restoration, and enhancement. It offers a comprehensive suite of tools focused on alleviating common to complex audio issues. Post production professionals, audio engineers, and video editors alike use RX to transform problematic recordings into production-ready audio.
/ 13 Lucky iZotope RX Tricks for Newbies. 13 Lucky iZotope RX Tricks for Newbies. I’ll include suggestions specifically tailored to iZotope’s RX software. Create presets in your plug-in or app. Save them to disk when mastering. That gives you a snippet you can reference later when mastering similar sounds. Label these clips with. Waves L1 Ultramaximizer L2 and L3 Ultramaximizer are all great plugs for back end master. I like L3 a lot. I don't have anything that adds harmonics like Izotope does, but for basic master bus mastering there isn't much better than Izotope Ozone. It has most of the tools you could want. IZotope website and click the “TRY” button: If you are not already logged into the iZotope website, you will be prompted for an e-mail address to log in or set up a new account. Once the login/registration process is complete, you’ll be directed to the Iris 2 download page, where you can download our software for Mac or PC. In other words, there are some tools in RX which are very useful in non–musical applications, yet have less immediate use in music production. IZotope themselves sort the modules according to function, into Restoration, Production and Utility groups. Three: The Magic Number. Late in 2013, iZotope released version 3 of RX. The latest version of iZotope's RX restoration suite does more than before — and does it faster! 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. IZotope Software & Plug-ins Click here for all support articles. IZotope Spire Click here for all support articles. Exponential Audio Plug-ins Click here for all support articles. My Account Click here to visit your iZotope account.
Design Philosophy
The RX 6 Audio Editor is a visual, selection-based editing environment. Most of its user interface is devoted to the Spectrogram/Waveform display, an integral part of the RX editing workflow. The display enables you to refine and visualize your audio, allowing for better recognition and selection of problem areas.
Using the spectrogram to identify audio problems
- See the Identifying Audio Problems chapter for tips on using the spectrogram to spot common audio issues.
RX Audio Editor Feature Comparison Chart
Rx 7 Izotope
| Features | Elements | Standard | Advanced | |
|---|---|---|---|---|
| Batch Processor | X | X | X | |
| Clip Gain | X | X | X | |
| Composite View | X | X | NEW! | |
| Find Similar | X | X | ||
| Instant Process | X | X | ||
| Markers & Regions | X | X | X | |
| Module Chain | X | X | X | |
| Module List View Filters | X | X | X | NEW! |
| mp3 Export | X | X | NEW! | |
| Plug-in Hosting | X | X | X | |
| Recording & Monitoring | X | X | X | |
| Spectrum Analyzer | X | X | X | |
| Spectral Editing Tools | X | X | X | |
| Waveform Statistics | X | X | X |
RX Module Comparison Chart
| RX Modules | Elements | Standard | Advanced |
|---|---|---|---|
| Ambience Match | X | ||
| Azimuth | X | ||
| Breath Control | X | X | NEW! |
| Center Extract | X | ||
| De-bleed | X | X | NEW! |
| De-click | X | X | X |
| De-clip | X | X | X |
| De-crackle | X | X | |
| De-ess | X | X | NEW! |
| De-hum | X | X | X |
| De-plosive | X | X | |
| De-reverb | X | X | |
| De-rustle | X | NEW! | |
| De-wind | X | NEW! | |
| Deconstruct | X | ||
| Dialogue Isolate | X | NEW! | |
| Dither | X | X | |
| EQ | X | X | |
| EQ Match | X | ||
| Fade | X | X | X |
| Gain | X | X | X |
| Interpolate | X | X | |
| Leveler | X | ||
| Loudness | X | ||
| Mixing | X | X | X |
| Mouth De-click | X | X | NEW! |
| Normalize | X | X | X |
| Phase | X | X | X |
| Pitch Contour | X | X | |
| Resample | X | X | |
| Signal Generator | X | X | X |
| Spectral De-noise | X | X | |
| Spectral Repair | X | X | |
| Time & Pitch | X | X | |
| Voice De-noise | X | X | X |
RX Plug-in Comparison Chart
| RX Plug-ins | Elements | Standard | Advanced |
|---|---|---|---|
| Ambience Match | X | ||
| Connect | X | X | |
| De-click | X | X | X |
| De-clip | X | X | X |
| De-crackle | X | X | |
| De-ess | X | X | NEW! |
| De-hum | X | X | X |
| De-plosive | X | X | NEW! |
| De-reverb | X | X | |
| Monitor | X | X | |
| Mouth De-click | X | X | NEW! |
| Spectral De-noise | X | X | |
| Voice De-noise | X | X | X |
This help guide is shared by RX 6 Elements, RX 6 Standard and RX 6 Advanced. The following tags are used throughout the manual to differentiate the feature sets:
- [STD & ADV] Indicates that a feature is included in RX 6 Standard and RX 6 Advanced.
- [ADV] Indicates that a feature is exclusive to RX 6 Advanced
Resample
Resample allows you to convert an audio file from one sampling rate to another.
Sample Rate Conversion (SRC) is a necessary process when converting material from one sampling rate (such as studio-quality 96 kHz or 192 kHz) to another rate (such as 44.1 kHz for CD or 48 kHz for video).
It is common to record and edit in high sampling rates since higher rates allow higher frequencies to be represented. For example, a 192 kHz audio sample can represent frequencies up to 96 kHz whereas a 44.1 kHz audio sample can only represent frequencies up to 22.05 kHz. The highest frequency that can be represented accurately by a sampling rate is half of the sampling rate, and is known as the Nyquist frequency.
When reducing the sampling rate, or downsampling, it is crucial to remove the frequencies that cannot be represented at the lower sampling rate. Leaving frequencies above this point causes aliasing. Aliasing can be heard as the frequencies in an inaudible range are shifted into an audible range, causing distortion and noise. With iZotope SRC's steep low-pass filter, users can completely avoid the common aliasing artifacts while maintaining the maximum frequency content. A comparison of iZotope’s SRC process versus other sample rate convertors can be viewed at: http://src.infinitewave.ca/
You can also engage the Post-limiter option in order to limit the output levels of your signal to prevent any clipping from occurring.
Note: The Aliasing portion of the curve displayed in red shows the reflected frequencies during downsampling or imaged frequencies during upsampling — both due to aliasing.
New sampling rate
This setting chooses the sampling rate you want to convert to. Choose a sampling rate from the drop-down list, or click on the field to type in a custom sampling rate.
Change tag only
Changes the declared sampling rate of the file in the file’s properties without resampling the file, effectively changing the playback rate and pitch of the file.
This feature is useful if the sampling rate tag was damaged by a previous audio editing process and the file is playing back incorrectly.
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Filter steepness
This allows you to control the steepness of the SRC filter cutoff. The white line is representative of an ideal low-pass filter.
Higher filter steepness means better frequency performance of the filter: wider passband retains more useful signal, while stronger stopband attenuation provides better rejection of aliasing. At the same time, higher steepness of the frequency response requires a longer filter, which produces more ringing in time domain and energy smearing near the cutoff frequency.
Cutoff shift
SRC filter cutoff frequency shift (scaling multiplier).
Allows shifting the filter cutoff frequency up or down, to balance the width of a passband vs. amount of aliasing.
Pre-ringing
SRC filter pre-ringing amount in time domain (0 for minimum phase, 1 for linear phase, or anywhere in between).
Adjusts the phase response of the filter, which affects its time-domain ringing characteristic. The value of 0 produces a minimum-phase filter, which has no pre-ringing, but maximal post-ringing. The value of 1 produces a linear-phase filter with a symmetric impulse response: the amount of pre-ringing is equal to the amount of post-ringing. Intermediate values between 0 and 1 produce so-called intermediate-phase filters that balance pre- and post-ringing while maintaining linear-phase response across a possibly wider range of frequencies.
Post-limiter
Izotope Rx Tutorial
Keeps true peak levels of the output signal below 0 dBTP to prevent any clipping from occurring.
Izotope Rx Free
This option is important when resampling signals that are very close to 0 dB, because filtering during resampling can change peak levels of a signal.