Time and Pitch Machine

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This function can be used to compress and expand audio as well as transpose pitch. To use this function select the area of audio to be processed, then select Factory > Time and Pitch Machine (Control-P). Several options are then provided. First the Mode menu:

  • Free (the most common setting) - pitch and tempo adjustments can be made independently
  • Classic - pitch and tempo are linked (think of a tape machine)

Next the Algorithm menu:

  • Version 5 - can be used on most audio, it imparts color
  • Any Material - suitable for most types of audio material
  • Monophonic - good for monophonic content, e.g., a voice, brass instrument, woodwind, etc.
  • Pads - good for polyphonic content, e.g., string section, choirs
  • Rhythmic Material - good for drums and rhythmic instruments like rhythm guitar, clavinet
  • Beats Only - good for drum loops, this algorithm preserves rhythmic timing of content
  • Universal - good for any kind of audio material, this is the default mode
  • Complex - good for natural sounding results when time stretching complicated material, such as mixes or orchestral material
  • Percussive - this mode is similar to Beats Only but should be used when the content is affected with reverb; this mode also works well for dry drum recordings

Tempo Parameters:

  • Tempo Change - allows the tempo to be changed by a percentage
  • Tempo - set the original and desired tempos in BPM
  • Length in Samples - displays the selection length in samples
  • Length in SMPTE - displays the selection length in SMPTE time
  • Length in Bars - displays the selection length in bars, beats, divisions, and ticks

Pitch Parameters:

  • Transposition - allows selection to be pitched shifted (up or down) by the selected number of cents; 100 cents = one semitone (or half-step), therefore 1200 cents would pitch shift the selection up one octave
  • Harmonic Correction - preserves the characteristic of the original content as to avoid unnatural sounding results (chipmunk voices)

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