Analysis of Speech Signals

Nearly all speech analysis is concerned with three key problems. First, we wish to remove the influence of phase second, we wish to perform source/filter separation, so that we can stndy the spectral envelope of sounds independently of the source that they are spoken with. Finally, we often wish to transform these spectral envelopes and soince signals into other representations that are coded more efficiently, have certain robustness properties, or more clearly show tiie linguistic information we require. 

---