Time Stretching

Time Stretching

The time stretch algorithm allows you to change the length of the recording without changing the perceived pitch. It is not physically possible to do this without some sort of distortion and the quality of these time correction algorithms lies in their ability to reduce the audible distortions. Acoustica uses a method that works well on monophonic signals like speech and single musical instruments as well as on polyphonic music. However, some artifacts occur on high expansion or compression rates like in all other time stretching software.

The Time Stretch settings

Settings

Percentage

The time stretching factor in percent.

Optimize for

The inner settings of the time stretching algorithm are affected by choosing an optimization from one of the following: Speech, Music I or Music II, monophonic signals or percussive interments only.

Duration change

Here you can enter the new length after time stretching.

Tempo change

Here you can enter the original tempo in BPM and the target tempo after time stretching