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 conditions.
Dialogue Isolate uses a machine learning algorithm (deep neural network) that was trained on a large library of speech and noise data to automatically recognize speech content in an input signal. It leverages this training data to detect and separate dialogue and noise into two separate signal components. The levels of the separated dialogue and noise components can then 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.
Dialogue Separation Sensitivity
Determines how much of the input signal will be identified as dialogue by the separation algorithm.
- Lower values will instruct the separation algorithm to narrowly 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.
- Higher values will instruct the separation algorithm to broadly 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.
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. Channel independent mode is the fastest Separation algorithm option. It offers the most efficient real-time preview performance and processing speeds when working with the Dialogue Isolate module in the RX Audio Editor.
Joint Channel
When this mode is selected, joint channel processing is applied to the input audio before determining the separation between dialogue and noise signal components. Joint Channel mode offers higher quality separation results 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 8 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 8 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 8.5.0
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