Short-time Fourier analysis of sampled speech
Michael R. Portnoff · IEEE Transactions on Acoustics Speech and Signal Processing · 1981
The theoretical basis for the representation of a speech signal by its short-time Fourier transform is developed. A time-frequency representation for linear time-varying systems is applied to the speech-production model to formulate a quasi-stationary representation for the speech waveform. Short-time Fourier analysis of the resulting representation yields the relationship between the short-time Fourier transform of the speech and the speech-production model.