ADV
Module & Plug-in (Audiosuite Only)
Table of Contents
Overview
Dialogue Isolate is designed to separate spoken dialogue from non-stationary background noise such as: crowds, traffic, footsteps, weather, or other noise with highly variable characteristics. It can be particularly effective at increasing the level of dialogue in challenging low signal-to-noise ratio recordings.
Dialogue Isolate uses a machine learning algorithm that was trained on a large library of speech and noise data. It automatically detects and separates dialogue and noise into two distinct signal components. The levels of the separated dialogue and noise can be independently adjusted using the Dialogue and Noise gain controls.
Controls
The following controls are available in the Dialogue Isolate module:
Dialogue Gain
Adjusts the amount of gain (in dB) applied to the components identified as dialogue by the separation algorithm.
Noise Gain
Adjusts the amount of gain (in dB) applied to the components identified as noise by the separation algorithm.
Sensitivity
Determines how much of the input signal will be identified as dialogue by the separation algorithm.
Higher values will instruct the separation algorithm to broadly define what it categorizes as dialogue in the input signal. This can result in more noise being included in the rendered signal, but can help to maintain dialogue clarity.
Lower values will instruct the separation algorithm to narrowly define what it categorizes as dialogue in the input signal. This can result in more significant noise reduction, at the cost of introducing artifacts and potentially reducing dialogue clarity.
Quality
The following quality modes are available in the Dialogue Isolate module.
- Good: A fast, high quality processing mode that is optimized for speed over separation.
- Best: Our highest quality processing mode with fewer artifacts and better isolation at the cost of a longer processing time.
- Use legacy algorithm: Selects the separation algorithms from RX 6-8. This is available in the options menu of Dialogue Isolate.
Separation Algorithm
The following separation algorithm modes are available in the Dialogue Isolate module.
Channel Independent
When this mode is selected, the separation algorithm is applied to the input audio channels independently. It offers the most efficient preview performance and processing speeds when using Dialogue Isolate in the RX Audio Editor.
Joint Channel
When this mode is selected, processing is applied to the input audio before determining the separation between dialogue and noise. Joint-channel mode offers higher quality separation than Channel-independent mode, especially when processing stereo files with similar content on both channels (correlated signals, strong stereo image).
Advanced Joint Channel
When this mode is selected, joint channel and additional advanced processing is applied to the input audio before determining separation between dialogue and noise. Advanced Joint Channel mode offers the highest quality separation results, especially when processing files with high sampling rates. This mode requires longer processing times than the other two modes. If processing time is a concern, Channel Independent mode can be used as a faster, lower quality alternative.
Preview Functionality
Reduced Quality Preview Mode
Unlike many of the modules with preview capabilities in the RX 9 Audio Editor, the Dialogue Isolate module utilizes a reduced quality preview mode. Learn more about Reduced Quality Preview Mode.
No Preview in Audiosuite
The RX 9 Dialogue Isolate Audiosuite plug-in does not include the ability to preview processing before rendering.
Alternative Modules
For stationary noise, such as hiss, buzz, line noise, etc., Dialogue Isolate may produce satisfactory results, but we also suggest trying the Spectral De-noise module if you are having trouble achieving acceptable results with Dialogue ISolate.
RX 9.3.0
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