wsola 4.9-1.1ubuntu2 (lpia binary) in ubuntu gutsy

 It speeds up or slows down audio, without pitch alteration. WSOLA operates
 using the Waveform Similarity overlap add method [1].
  [1] @InProceedings{Verhelst:1993,
  author = {Verhelst, W. and Roelands, M.},
  title = {An overlap-add technique based on waveform similarity
  (WSOLA) for high quality time-scale modification of speech},
  booktitle = {IEEE International Conference on Acoustics, Speech, and
  Signal Pr ocessing},
  pages = {554-557},
  year = {1993},
  volume = {2},
  month = {April} }
 .