Automatically Trimming a File

From the Process menu, choose Auto Trim to automatically remove unnecessary silence from a sound file and automatically fade the end-points of phrases in and out.

  1. From the Process menu, chose Auto Trim.

  2. Choose a setting from the Preset drop-down list or adjust the controls as needed.

    Item

    Description

    Preset

    Choose a preset from the drop-down list, or click the Save As button to create a new preset.

    Function

    Choose a mode from the drop-down list:

    • Remove silence from start and end Silence at the beginning and end of the selection is deleted. Data outside of the selection is not affected.

    • Remove silence between phrases (create regions): All silence between phrases inside the selection is deleted. Regions are created between phrases. Use this function to delete the silence between sound effects and automatically create regions. For more information, see "The Regions List."

    • Remove data from start and limit length: Allows you to specify an amount of sound that should be deleted from the beginning of each selection and specify a maximum length for converted files. If a file is longer than this length, it will be trimmed. This setting is useful for creating sample clips.

    Attack threshold

    Drag the fader to set the threshold level used for the detection of the trim/crop start point. -Inf. is complete silence; 0 dB is the maximum amplitude level.

    Release threshold

    Drag the fader to set the threshold level used for the detection of the trim/crop end point. -Inf. is complete silence; 0 dB is a maximum amplitude level.

    Fade in

    Specify the length of fade-in applied to the sound file after the trim/crop start point is detected. This is useful for preventing glitches at beginning and ending points.

    Fade out

    Specify the length of the fade-out applied to the sound file after the detected trim/crop end point.

    Minimum silence between phrases

    Specify the minimum amount of silence that must exist between phrases before a new region is created.

    Auto trim from start

    When using the Remove data from start and limit length function, this value specifies the amount of data that should be trimmed from the beginning of the file.

    Maximum output size

    When using the Remove data from start and limit length function, this value specifies the maximum length of the file.

  3. Click the Process button.