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Pro tools: Elastic Audio

2018-04-07 By WikiAdmin Leave a Comment

Elastic Audio is a time manipulation processing system in Digidesign Pro Tools. It was introduced in 2007 with Pro Tools 7.4. Elastic Audio (also known as Elastic Time) enables the user to change an audio file’s tempo or timing in real time without altering the file’s pitch, allowing for quick rhythmic or time-based adjustments without the need to render audio.

Contents

  • 1 Operation Modes
    • 1.1 Polyphonic
    • 1.2 Rhythmic
    • 1.3 Monophonic
    • 1.4 Varispeed
    • 1.5 X-Form
  • 2 References

Operation Modes

Elastic Audio operates with one of 5 plugins: Polyphonic, Rhythmic, Monophonic, Varispeed, and X-Form (Rendered Only). The first four plugins, Polyphonic, Rhythmic, Monophonic, and Varispeed, all do their processing in real time, while the fifth, X-Form, uses an algorithm based on Digidesign’s X-Form time compression/expansion plugin that requires the audio to be rendered before it can be played back. As a result, X-Form Elastic Audio provides the highest fidelity with the sacrifice of real-time processing.

Polyphonic

This plugin is designed for processing audio files that are polyphonic, containing audio of more than one note or tone. Examples of polyphonic audio files would be a recording of a guitar playing chords or a recording of a band or other ensemble. This plugin is considered the most “all purpose” Elastic Audio plugin.

Rhythmic

This plugin is used for heavily rhythmic material, such as drums and other percussive instruments.

Monophonic

This plugin is designed for processing audio that is monophonic, or audio that contains only a single note or tone. Examples of monophonic files could be a recording of a simple bass line or a vocalist.

Varispeed

This plugin is the only Elastic Audio plugin that alters the pitch as well as the time (tempo). It can be used to create tape-like speed effects.

X-Form

The X-Form plug-in is a modified version of the X-Form Audiosuite plug in.X-Form provides rendered audio processing only and cannot process in real time.

References

Avid “Pro Tools Reference Guide”

 

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