The latter controls the width of the crossfades between new and existing audio. The workflow is simple: You press the Learn button, and it analyzes your audio and makes settings suggestions for the Cutoff Frequency (where the existing audio stops) and Smoothing parameters. Its purpose is to restore upper frequencies to bandwidth-limited spoken-word audio, such as interviews or other content recorded through Skype or Zoom or one of the other VoIP services. Spectral Recovery (Advanced) is a new feature aimed squarely at post-production. I found it useful for subtly adjusting pick attack and smoothing it out where necessary. In addition to Sensitivity and Reduction sliders, it also has an adjustment for attack speed. The Pick section is designed to reduce harsh pick transients. If need be, you can always go in with Spectral Repair after the fact to fix a troublesome squeak or two. But even when it didn’t remove them all, it reduced them sufficiently that they were no longer problematic. I wasn’t always able to remove all squeaks while keeping the settings low enough not to degrade the audio. Settings too high can make the track sound muffled. With Squeak, you only have to choose whether the Squeaks are short (under 200 ms) or long (up to 1,000 ms) and try different settings with the Sensitivity and Reduction sliders, keeping them as low as you can while still reducing or removing the squeaks. In the past, I would use RX’s Spectral Repair module for that task, but I had to address each squeak individually, and that could be time-consuming on a song-length, squeak-heavy part. The only drawback is if you’re not able to find a spot of noise by itself, in which case the Learn function won’t work and you’ll probably have to use one of RX’s other de-noising tools instead.įor removing finger squeaks, Squeak is a real time-saver. You first select a section of noise that’s by itself and click the Learn button so that Amp can calculate the necessary reduction settings. I tried it out on guitar tracks with a lot of amp buzz and found that it worked as advertised. IZotope designed Amp to reduce static, tonal noises like buzzes and hum, and hums that are too harmonically complex for the De-Hum module. Each section has sliders for adjusting Sensitivity and Reduction (amount), and the presets provide typical settings for each. You can use any combination of the sections and Render their processes individually or simultaneously. It features three sections: Amp for reducing amp noise Squeak for getting rid of finger squeaks and Pick to control harsh pick attacks. One of the highlight additions in RX8 is a module called Guitar De-Noise (Advanced and Standard). RX also includes an AI-based Repair Assistant feature, which analyzes your audio and suggests several options for cleaning up problems that it detects. You also get tools for tasks such as EQing, adjusting gain, leveling audio, changing pitch and time, and adding dither. The modules include various de-noising tools for specific issues such as hum, clicks, bleed, clipping, crackle, plosives and mouth clicks. Many of the modules also come in plug-in form, allowing you to open them inside of your DAW. It comes with an extensive suite of audio repair and manipulation tools useful for audio editing and repair for film and video, broadcast, podcasts, music, and more. RX is an audio editor centered around an editable, overlaid spectrogram/waveform display that lets you control how much of each is visible. In this review, I’ll look at the many new and improved features, but first a quick overview of RX for those unfamiliar. RX Advanced has become a mainstay in audio post-production, and the Standard version has found its way into plenty of home studios. The latter has a minimal feature set, and I’ll focus here mainly on the Advanced and Standard versions. RX comes in three versions, RX8 Advanced and the more affordable RX Standard, and the inexpensive RX Elements. RX8 (Mac and PC) holds true to form, offering several new modules and significant revamps of several returning ones.

I always look forward to version updates of iZotope RX, the company’s module-based audio repair suite, because I know they will include powerful new features. RX8 includes a number of new and revamped modules

Izotope 8 advanced vs. standard