This page is a complement to the scientific paper "Low Latency Audio Pitch Shifting in the Time Domain", published in the proceedings of the IEEE International Conference on Audio, Language and Image Processing (ICALIP 2008). It provides music excerpts to illustrate the proposed algorithm (the "Rollers" algorithm) and to compare it with other well-known approaches. A pitch shifting of +30% is used for all algorithms.
|Original music||Time-domain overlap-add||WSOLA||Standard phase vocoder||Rollers||Improved phase vocoder|
|Latency (theoretical):||30ms||100ms||46ms||< 10ms||93ms|
The "Rollers" algorithm uses several frequency shifting transformations to express a pitch shifting transformation. Frequency shifting and pitch shifting are different audio effects. The following music excerpts illustrate the difference between frequency shifting and pitch shifting.