[music-dsp] Anyone can tell me some thing about pitch dectector?

[jpff at cs.bath.ac.uk]

You could try the wavelet fundamental tracker -

@InProceedings{JPF66,
  author =       {John ffitch and Wafaa Shabana},
  title =        {A Wavelet-based Pitch Detector for Musical Signals},
  booktitle =    {Proceedings of DAFx99},
  pages =        {101--104},
  year =         {1999},
  editor =       {Jan Tro and Mikael Larsson},
  month =        {December},
  publisher =    {Department of Telecommunications, Acoustics Group, 
                  Norwegian University of Science and Technology},
  note =         {\url{http://www.tele.ntnu.no/akustikk/meetings/DAFx99/fitch.pdf}},
  annote =       {ISBN 82-995422-0-0}
}

==John ffitch