What is Auto Duck?
Auto duck reduces the volume of a selected track, when volume reaches a threshold value. The number of the selected tracks can be one or more. This function can create voice-overs for DJ.
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It can be used for podcasts and to ramp up background music, generally used for radio communication. It can also turn down voice as soon as the translation of the original music comes.
How to prepare the Auto Duck?
To prepare and use Auto duck, select the track that needs modification. Or, the region that needs modification. You should now select the track you want to use as the control track.
The first deselected track below the selected track will be your control track. The unselected track, or control track, has to be positioned under the selected track. You can place multiple selected tracks under the control track. And, all these tracks will be modified.
The audio track dropdown menu enables you to move the track up or down, if required. You have to align the control tracks with the ducked tracks. For this alignment, you can use the Time Shift Tool. The effect menu contains the ‘Auto duck’ option, which you need to select.
The control track is first analyzed, and then the selected tracks have the effect applied. This process is a bit longer than enabling Auto Duck. Additionally, there is a progress bar present to show the time completed for processing.
Parameters for modification of track
You can manually input the parameters, which you need to modify. A graph is formed after the Auto Duck effect is applied. This graph contains the changes or modifications made to the original track. You can change the amount of duck by moving the white circles that are the control points. The volume in the track reduces when it detects a signal above its threshold value.
Duck amount is the measure of this reduced volume. Its default value is -12 dB. The maximum pause property has the function of preventing rapid changes in volume. Its default value is 1 second. The fade down length property selects the time at which the track fades down.
By default, its value is 0.5 seconds. Fade up property enables the user to set the time at which the track needs to fade up; by default value for this is 0.5. The threshold value detects a signal in the unselected track or the control track. Click here to learn more.
Buttons in the Dialog Box of Auto Duck
Manage is to see the default setting of Auto duck. The ‘Preview’ button is to show how the applied setting on the selected track would sound, along with the pauses and fading. The Ok button will apply the effect and modifications you want on the audio track. The Close button closes the Auto duck dialog Box.