Audio 

• PQevalAudio [options] AFileR AFileT
  http://www.tsp.ece.mcgill.ca/MMSP/Documents/Software/Packages/AFsp/PQevalAudio.html  
   

• TTSBOX: A MATLAB TOOLBOX FOR TEACHING TEXT-TO-SPEECH SYNTHESIS
  http://tcts.fpms.ac.be/publications/papers/2005/ICASSP05_tdmc.pdf
    

• MA Toolbox for Matlab Implementing Similarity Measures for Audio
  http://www.oefai.at/~elias/ma/index.html  
   

• MAD -  Matlab Auditory Demonstrations
  http://www.dcs.shef.ac.uk/~martin/MAD/docs/mad.htm 
   

• Music Analysis - Toolbox for Matlab : Feature Extraction from Raw Audio Signals for Content-Based Music Retrieval
  http://www.ai.univie.ac.at/~elias/ma/  
   

• WarpTB - Matlab Toolbox for Warped DSP
  By Aki H鋜m?and Matti Karjalainen
  http://www.acoustics.hut.fi/software/warp/ 
   

• MATLAB-related Software
  http://www.dpmi.tu-graz.ac.at/~schloegl/matlab/
   

• Biomedical Signal data formats (EEG machine specific file formats with Matlab import routines)
  http://www.dpmi.tu-graz.ac.at/~schloegl/matlab/eeg/
   

• MPEG Encoding library for MATLAB Movies (Created by David Foti)
  It enables MATLAB users to read (MPGREAD) or write (MPGWRITE) MPEG movies. That should help Video Quality project.
   

• Octave by  Christophe COUVREUR (Generates normalized A-weigthing, C-weighting, octave and one-third-octave digital filters)
  http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectType=file&objectId=69 
   

• Source Coding MATLAB Toolbox
  http://www.ece.umn.edu/users/kieffer/programs.html 

还有更多地：

http://www.tech.plym.ac.uk/spmc/links/matlab/matlab_toolbox.html