11.5

374 Object menu
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Time / Pitch
Resample / Timestretching
Opens the
timestretching/resampling/pitchshifting editor.
Note: If you only want to change the sample rate of an audio file, then use the
"Adjust sample rate" option from the "Effects" menu.
All algorithms in this dialog use the time factor parameter and pitch as input
parameter.
The time factor calculation (from the original length/original speed and the
length required/speed required) can be comfortably activated on the right side
of the dialog.
Resampling
Samplers and PCM synthesizers transpose samples during this procedure.
Time factor and pitch are dependent upon each other; the shorter the audio
material, the higher the pitch. This effect is comparable with changing the play
back speed of record players or tape recorders.
The effect is relatively loss-free, and the sound loss is less than all
timestretching/pitchshifting procedures. If pitch change is justified by changing
the speed (and vice versa), use this algorithm.
When lengthening the audio material by resampling, very small aliasing effects
may occur. The anti-aliasing filter helps correct this. Alternatively, since this
filter creates additional CPU load, it can be activated for computation and
real-time previewing. The filter is also available for the other algorithms that use
internal resampling during pitchshifting.