DeNoise Light 3

Standard Edition Only

This feature is available in the Standard Edition only.

The DeNoise Light 3 tool targets stationary noise such as broadband noise, hiss, wind noise, buzz and camera noise (please see About De-noising).

User Interface

General Settings

• Learn button

The first step is to measure the noise to remove using the learn button, indicated below with a red arrow:

Toggle the Learn button. It will turn yellow. Now play a section that contains the noise you want to remove in your host application. No noise reduction is performed when the learning mode is activated. After playing the section containing noise, toggle the Noise Profile button again. It will turn dark blue to indicate that it has captured a profile of the noise. DeNoise Light will now reduce the noise when playing back.

• Noise Floor (dB)

This slider, on the left side of the interface, sets the maximum amount of attenuation that DeNoise Light 3 is able to use. If you hear artifacts after removing hum, try reducing the maximum amount of attenuation by raising this slider until artifacts are no longer audible.

• Reduction (dB)

Reduction factor scales the estimated noise profile and allows you to remove more (positive values) or less (negative values) noise than the analysis algorithm detected.

• Soft knee (%)

The soft knee parameter reduces the steepness of the transition between noise and the wanted signal. Higher soft knee values result in a more natural transition.

• Solo Noise

Enable this option if you wish to monitor the signal removed by the noise reduction algorithm.

The Solo Noise button is found along the bottom of the visualization graph on the right side.

• M/S Mode

The Mid / Side (M/S) mode is only available when working with source material in stereo and it avoids drifting in the stereo image after processing. When enabled, the incoming audio is converted to a M/S signal prior to processing and decoded back to normal left / right stereo at the output.

The Mid / Side button is found along the bottom of the visualization graph.

• Reaction time (ms)

The reaction time controls the maximum time for the algorithm to respond to level changes in each frequency band. Longer reaction times effectively reduces tonal and burst-like processing artifacts.

• Emphasis Filters

DeNoise Light 3 provides a reduction curve with low shelf, mid bell, and high shelf filters available to shape the sensitivity of the reduction algorithm. The filters can be toggled by clicking the filter buttons in the bottom left of the Reduction Curve graph, beside the Mid Side button. In the below image the mid bell and high shelf filters are active.

We can also see a green circle at the peak of the bell filter, with corresponding arrows and handles at each side. Left click and drag the circle to change the frequency and gain of the filter. Click and drag the arrows to adjust the Q width of the filter. Click and drag the handles to change the slope shape of the filter.