Time Compression/ Expansion Controls
The Time Compression/Expansion plug-in provides the following controls:
The Source fields display the length of the current selection before processing in each of the listed formats. All fields are always active; a change made to one value is immediately reflected in the others.
The Destination fields both display and control the final length of the selection after processing. Enter the length of the Destination file by double-clicking the appropriate field in the Destination column.
Use the Ratio, Crossfade, Min Pitch, and Accuracy controls to fine-tune the Time Compression/Expansion process.
Sets the destination length in relation to the source length. Moving the slider to the right increases the length of the destination file, while moving the slider to the left decreases its length.
Adjusts the crossfade length in milliseconds, optimizing performance of the Time Compression/Expansion according to the type of audio material being processed. (This plug-in achieves length modification by replicating or subtracting very small portions of audio material and very quickly crossfading between these alterations in the waveform of the audio material.)
Crossfade length affects the amount of smoothing performed on audio material. This prevents audio artifacts such as clicks from occurring. Long crossfade times may over-smooth a signal and its transients. This may not be desirable on drums and other material with sharp transients.
Use the Crossfade slider to manually adjust and optimize crossfade times if necessary. For audio material with sharper attack transients, use smaller crossfade times. For audio material with softer attack transients, use longer crossfade times.
Sets the minimum, or lowest, pitch that will be used in the plug-in’s calculations during the Time Compression/Expansion process. The control has a range of 40 Hz to 1000 Hz.
This control should be set lower when processing bass guitar or audio material with a low frequency range. Set this control higher when processing higher frequency range audio material.
Prioritizes the processing resources allocated to audio quality (Sound) or timing (Rhythm). Moving the slider towards “Sound” generally results in better sonic quality and fewer audio artifacts. Moving the slider towards “Rhythm” puts the emphasis on keeping the tempo consistent.
When you are working with audio loops, listen carefully and adjust the Accuracy slider until you find a setting that keeps timing solid within the clip. If you don’t, start and end times may be precise, but the beats in rhythmic material may appear to be shuffled if too little priority is given to Rhythm.
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