Pitch Shifting

2Pi’s pitch shifting algorithm supplies tremendous benefits for products requiring a change in a signal’s frequency or duration.

 

 

 

Singular performance

The algorithm opens a wide range for altering the frequency or duration of a signal, while still maintaining outstanding sound quality. In terms of frequency, it is possible to shift a full octave either up or down. In terms of duration, the original length of a recorded signal can be as much as doubled or halved.
Though altered, the speech signal preserves its harmonic relations and maintains its natural sound.

 

 

Harmonic relations

The most demanding applications are thus mastered by alterations to the original sound without destroying its natural character. In anti-stuttering devices, for example, pitch shifting enables trained users to correct their stuttering by becoming conscious of the altered version of their own voice.