Hear iZotope’s RX 7 audio repair plug-in in action. Listen to the versatile Music Rebalance tool and modules for music and post production. IZotope RX is by far the king of audio repairs. It’s really that good! In this advanced Unofficial Video Manual, Joe Albano, leads the way by explaining what each module. How does Voice De-noise processing work? Under the hood is a series of 64 psychoacoustically spaced bandpass filters which act as a multiband gate to pass or stop a signal based on user-defined threshold values. If a signal component is above the threshold for the filter, it will be passed (not processed).
Izotope Rx 6 Advanced Manual
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Overview
The De-click module’s sophisticated algorithm analyzes audio for amplitude irregularities and smoothes them out. This means that you can use De-click to remove a variety of short impulse noises, such as clicks caused by digital errors, mouth noises, and interference from cell phones.
Controls
- ALGORITHM: Provides options for adjusting the configuration and processing quality of click interpolation, depending on the types of clicks and pops present in the audio.
- SINGLE BAND: Processes quickly and works well on very narrow “digital” clicks
- MULTI-BAND (PERIODIC CLICKS): Uses multi-band processing for removing regularly repeating clicks with a wider spectrum, or regular clicks that have concentrated low or high energy (like thumps or optical soundtrack perforation noise)
- MULTI-BAND (RANDOM CLICKS): Uses multi-band processing for wider vinyl clicks and thumps, with a protective algorithm for preserving periodic audio elements characteristic to certain instruments such as brass or vocals
- LOW LATENCY: Works well on mouth clicks and other clicks that cannot be handled by other algorithms. This mode has very low latency and is suitable for real-time work in RX De-click plug-in.
- SINGLE BAND: Processes quickly and works well on very narrow “digital” clicks
- SENSITIVITY: Determines how many clicks are detected in the signal. Increasing sensitivity can impact plosives, which can in turn reduce or damage the original signal.
- FREQUENCY SKEW: Adjusts the weighting of click removal toward higher or lower frequency clicks. Negative values are more suitable for generic clicks such as those found on vinyl recordings. A setting of zero or above targets mouth clicks in the middle frequencies.
Note
- Frequency skew is not available when using the Single Band Algorithm option.
- Frequency skew is not available when using the Single Band Algorithm option.
- CLICK WIDENING: Extends the repair area around detected clicks, compensating for mouth sounds such as lip smacks that have a decay.
- OUTPUT CLICKS ONLY: Outputs the difference between the original and the processed signals (suppressed clicks).
Instant Process Tool [Std & Adv]
The Instant Process Tool offers a smart De-click mode, which instantly applies the active settings from the De-click or Interpolate modules. Simply put, you may make any selection, and this mode will automatically remove all clicks present in that selection. This is particularly useful for editing a dialogue file, mismatching sample rate clicks and pops, and vinyl clicks.
If you’ve made a selection under 4000 samples in length, Instant Process will automatically use the Interpolate algorithm. Interpolate will fill the selection with audio information based on the surrounding audio.
Izotope Rx Manual
For selections above 4000 samples, Instant Process will use the current settings of the De-click module. De-click is effective on selections above 4000 samples in size, identifying clicks in relation to desirable audio, and intelligently separating and removing the clicks.
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For example, if the De-click module is indicating that a preset named ‘Remove mouth clicks’ is loaded, these settings will be applied every time you use the Instant Process Tool in ‘De-click’ mode (on selections longer than 4000 samples).