Need help on Speech Enhancement project

Replies

• 

  MatlabMentor

  contact us at at yahoo com...please send more details about ur details and project details
• 

  ednan

  but i cant understand the parameters used in it ...please if u help me out m very thank ful to u .
  
  %SPECTRALSUBTRACTION performs speech enhancement using spectral subtraction [OUT,PO]=SS(IN,FS,P)
  %
  % implementation of spectral subtraction algorithm
  % noisy speech IN with fs=FS enhanced by SS and returned in OUT, P is the algorithm parameters as bellow:
  % algorithm parameters: t* in seconds, f* in Hz, k* dimensionless
  % 1: tg = smoothing time constant for signal power estimate (0.04): high=reverberant, low=musical
  % 2: ta = smoothing time constant for signal power estimate used in noise estimation (0.1)
  % 3: tw = fft window length (will be rounded up to 2^nw samples)
  % 4: tm = length of minimum filter (1.5): high=slow response to noise increase, low=distortion
  % 5: to = time constant for oversubtraction factor (0.08)
  % 6: fo = oversubtraction corner frequency (800): high=distortion, low=musical
  % 7: km = number of minimisation buffers to use (4): high=waste memory, low=noise modulation
  % 8: ks = oversampling constant (4)
  % 9: kn = noise estimate compensation (1.5)
  % 10:kf = subtraction floor (0.02): high=noisy, low=musical
  % 11:ko = oversubtraction scale factor (4): high=distortion, low=musical
• 

  t.lwinoo

  hello adnan,
  
  I'm doing the same thing for my final year project as well. Mine is on multi-channel speech enhancement. I am supposed to develop a simulation tool using MATLAB.
  
  Currently I have read loads of stuffs on microphone array processing, delay and sum beamforming, etc.... But I have no idea on how to start writing the code. Can someone give me a sample coding regarding this project? I'd like to refer to it to start off since my MATLAB knowledge is very low.
• 

  sauravgoswami

  write the algorithm first,then develop each module and combine them,these are the basic things to write any code same applies here!!!......happy coding!!