Improvement of speech spectrogram accuracy by the method of reassignment
F. Plante, Georg F Meyer, W.A. Ainsworth · IEEE Transactions on Speech and Audio Processing · 1998
An improvement of the speech spectrogram based on the method of reassignment is presented. This method consists of moving each point of the spectrogram to a new point that represents the distribution of the energy in the time-frequency window more accurately. Examples of natural speech show an improvement of the energy localization in both time and frequency domains. This allows a better description of speech features.