Title :
Improvement of speech spectrogram accuracy by the method of reassignment
Author :
Plante, F. ; Meyer, G. ; Ainsworth, W.A.
Author_Institution :
Dept. of Commun. & Neurosci., Keele Univ., UK
fDate :
5/1/1998 12:00:00 AM
Abstract :
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
Keywords :
signal representation; spectral analysis; speech processing; time-frequency analysis; energy distribution; energy localization; frequency domain; natural speech; reassignment method; speech features; speech spectrogram accuracy; time domain; time-frequency representation; time-frequency window; Frequency domain analysis; Gravity; Image resolution; Natural languages; Neuroscience; Signal analysis; Signal processing; Signal resolution; Spectrogram; Speech processing;
Journal_Title :
Speech and Audio Processing, IEEE Transactions on
