TimeStretch Calculators

Tools for time-stretching your sample loops without altering their pitch.

Alternatively, you can transpose them without changing their tempo using either semi-tone or note-name values.

You don't need Acid to time-stretch those samples anymore!

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Time-Stretching sample loops

To increase the beats per minute (bpm) of your sample, you must reduce it's length (time-stretch less than 100%).

To decrease the bpm, we increase it's length (time-stretch more than 100%).

For decimal values of bpm, use a decimal point (e.g... 98.678).

Change the tempo of a sample without changing its pitch by time-stretching it
1) To get a sample of bpm	2) To be bpm
Without changing its pitch
3)	4) %

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Transpose - Keep Tempo:

Another time-stretch classic, but this time for transposing a loop.

When you pitch-shift a loop of say, 2 semitones, you raise it's bpm (thereby decrease it's length to play faster) proportionally.

If you don't want the bpm to change, you first have to "lengthen" the loop, then apply the transposition.

You can enter negative and decimal values of semitones. Use a decimal point to enter decimal values of semitones.

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Transposing, Time-stretching and Tempo Calculator:

The same calculator as above, but instead of entering semitones, you can use named notes like "A2", "Db4", C3 etc... instead.
Originally created by Bertrand Robion for Backstage.

Transposing a sample with time-stretching without changing it's original tempo
1) To go from a (note) to a 2) (note)
3)	4) %
and then transpose.