Multitrack clip stretching

  1. Audition User Guide
  2. Introduction
    1. What's new in Adobe Audition
    2. Audition system requirements
    3. Finding and customizing shortcuts
    4. Applying effects in the Multitrack Editor
  3. Workspace and setup
    1. Control surface support
    2. Viewing, zooming, and navigating audio
    3. Customizing workspaces
    4. Connecting to audio hardware in Audition
    5. Customizing and saving application settings
  4. Digital audio fundamentals
    1. Understanding sound
    2. Digitizing audio
  5. Importing, recording, and playing
    1. Multichannel audio workflow
    2. Create, open, or import files in Adobe Audition
    3. Importing with the Files panel
    4. Extracting audio from CDs
    5. Supported import formats
    6. Navigate time and playing audio in Adobe Audition
    7. Recording audio
    8. Monitoring recording and playback levels
    9. Remove silences from your audio recordings
  6. Editing audio files
    1. Edit, repair, and improve audio using Essential Sound panel
    2. Generating text-to-speech
    3. Matching loudness across multiple audio files
    4. Displaying audio in the Waveform Editor
    5. Selecting audio
    6. How to copy, cut, paste, and delete audio in Audition
    7. Visually fading and changing amplitude
    8. Working with markers
    9. Inverting, reversing, and silencing audio
    10. How to automate common tasks in Audition
    11. Analyze phase, frequency, and amplitude with Audition
    12. Frequency Band Splitter
    13. Undo, redo, and history
    14. Converting sample types
    15. Creating podcasts using Audition
  7. Applying effects
    1. Enabling CEP extensions
    2. Effects controls
    3. Applying effects in the Waveform Editor
    4. Applying effects in the Multitrack Editor
    5. Adding third party plugins
    6. Notch Filter effect
    7. Fade and Gain Envelope effects (Waveform Editor only)
    8. Manual Pitch Correction effect (Waveform Editor only)
    9. Graphic Phase Shifter effect
    10. Doppler Shifter effect (Waveform Editor only)
  8. Effects reference
    1. Apply amplitude and compression effects to audio
    2. Delay and echo effects
    3. Diagnostics effects (Waveform Editor only) for Audition
    4. Filter and equalizer effects
    5. Modulation effects
    6. Reduce noise and restore audio
    7. Reverb effects
    8. How to use special effects with Audition
    9. Stereo imagery effects
    10. Time and pitch manipulation effects
    11. Generate tones and noise
  9. Mixing multitrack sessions
    1. Creating remix
    2. Multitrack Editor overview
    3. Basic multitrack controls
    4. Multitrack routing and EQ controls
    5. Arrange and edit multitrack clips with Audition
    6. Looping clips
    7. How to match, fade, and mix clip volume with Audition
    8. Automating mixes with envelopes
    9. Multitrack clip stretching
  10. Video and surround sound
    1. Working with video applications
    2. Importing video and working with video clips
    3. 5.1 surround sound
  11. Keyboard shortcuts
    1. Finding and customizing shortcuts
    2. Default keyboard shortcuts
  12. Saving and exporting
    1. Save and export audio files
    2. Viewing and editing XMP metadata
  1. Choose Clip > Stretch > Enable Global Clip Stretching.

  2. In the Editor panel, drag the white triangles in the upper right or left corner of clips.

    Note:

    Select multiple clips to stretch them proportionately.

To customize stretch settings for selected clips, adjust the following Stretch options in the Properties panel:

Mode

Choose from the following:

  • Off disables stretching, reverting the clip to its original length.
  • Realtime lets you hear the results of stretching as you drag clips. This mode is a good choice during the editing process.
  • Rendered (High Quality) requires longer processing but can avoid audible artifacts. Choose this mode if you encounter slow playback or performance with Realtime mode.

Type

Choose from the following:

  • Monophonic is best for solo musical instruments or dialogue.
  • Polyphonic is best for music with multiple instruments or complex ambient sounds.
  • Varispeed changes pitch in addition to duration, similar to slowing down or speeding up analog tape machines.
Note:

To quickly apply the same mode to all clips, choose Clip > Stretch > Realtime All Stretched Clips or Render All Stretched Clips.

Duration, Stretch, and Pitch

Provide numeric entries for more precise adjustments than dragging clips in the Editor panel allows.

Advanced settings

Set the following:

  • Transient Sensitivity (available in Polyphonic mode) Sets sensitivity to transients such as drum hits and note beginnings, which are used as anchor points for stretching. Increase if transients sound unnatural.
  • Window Size Sets the size, in milliseconds, of each chunk of processed audio. Adjust only if echo or flanging artifacts occur.
  • Precision settings (available in Rendered mode) determine the tradeoff between quality and processing speed.
  • Preserve Formants (available when Rendered and Monophonic are selected) adjusts the timbre of instruments and voices, maintaining realism during pitch shifts.
Note:

To make high voices sound low, or vice versa, select Preserve Formants and dramatically shift pitch.

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