RX 4 Advanced from iZotope is the latest incarnation of their audio repair software, long considered a staple within the recording and the audio and video post processing community. The software is available as a standalone application or as a plug-in for both Mac and Windows based DAWs. From fixing common audio problems like noises, distortions and inconsistent recordings, to repairing damaged audio using Spectral Repair that intelligently identifies and clones from the surrounding audio, the software is able to transform previously unusable audio into usable material.
The advanced edition adds several very important functions for professional workflows. Often audio for picture can be recorded in different locations and times, even when the scene is destined to be the same in the final product. EQ Match and Ambience Match help in making the audio sound as if it was recorded at the same time. The Dereverb tool goes further by allowing for removal of room sound so that a unified ambience can be added in post. And a loudness module processes whole program mixes or segments to comply with international industry standards.
Since some of the tools are only available in the standalone version, RX Connect enables the use of those tools in conjunction with the user's audio or video editing software with seamless transfers and without slowing down productivity. Additional features include high quality resampling and dithering, rebuilding distorted audio, batch processing, and more. A detailed spectrum analyzer detects peaks automatically and a suite of automatic, intelligent modules reduce manual tasks in the audio production workflow. And all of these processes are logged, allowing for an export of the complete edit history.
- Dialogue Denoiser reduces unwanted background noise and electrical interference from dialogue in real-time, with zero latency
- EQ Match allows for quickly learning the EQ of a source audio clip and applying that EQ curve to a target audio clip, enabling sonic balance and smooth transitions between multiple audio sources with different EQ qualities
- Ambience Match for matching the environment noise of two different audio recordings
- Learn the ambient noise from a source audio clip and apply it to another audio clip, and create long sections of constant ambient noise to insert under inconsistent dialogue recordings
- Leveler automatically balances out vocals, dialogue, and voiceovers with no manual input
- Loudness module processes whole program mixes or segments to comply with international industry standards, ensuring mixes never fail network specifications
- RX Connect for streamlined round-trip workflow between the standalone version and a DAW
- Adaptive Hum Removal notches out fundamental hum frequencies that may change over time, like when recording a shot in multiple locations
- Non-destructive Clip Gain allows for easily adjusting and balancing the volume of vocals and instrumentals
- Updated UI has a flatter and cleaner look, complemented by color gradients that are more pleasing to the eyes during multiple-hour editing sessions
- Full-screen support for Mac
- Export marker regions as files
- New codec export supports (FLAC/Ogg Vorbis )
- Metadata display (see ID3 tags and broadcast WAV metadata like source Timecode, etc.)
- Time-reverse audio
- Updated timeline ruler that displays original recorded source Timecode
- Support for 24 fps Timecode
- Movable tabs
- Improved default behavior for Save, Save As, Export, and Overwrite Original File
- Turn flawed audio into usable material by removing noises, distortions, and more
- Edit audio like editing an image using precision drawing tools, such as a brush and magic wand
- Salvage unusable material by filling in audio gaps instantly with Spectral Repair
- Remove unwanted reverb and improve the quality of on-location recordings with the Dereverb tool
- Repair stereo imbalances and phase issues that can occur during tape restoration with Azimuth Alignment controls
- Time and Pitch module, features Radius and Pitch Contour
- Keep track of all performed tasks and export a log of an edit history
- Seamlessly integrates with audio or video editing software, both as a standalone application or plug-in
- Deliver professional-quality results with speed and efficiency, meeting compliance requirements and international broadcast standards
- High quality resampling using the SRC sample rate conversion algorithm
- Reduce bit resolution for final delivery of a project without sacrificing quality with the MBIT+ dither algorithm
- Rebuild distorted audio caused by analog and digital overload, and get through projects faster with the automatic Suggest feature
- Channel Ops module offers precise delay and phase operations
- Spectrum Analyzer delivers a detailed spectral display that detects peaks automatically
- Batch processing - chain modules, process multiple files at once, and use multiple CPUs to speed up workflow