Speech recognition method using time-frequency masking mechanism

Details Speech recognition method using time-frequency masking mechanism Speech recognition method using time-frequency masking mechanism

1993-06-21

1995-10-17

MacDonald, Allen R.

395 247, 395 252, G10L 506

Patent

active

054598150

ABSTRACT:
A speech recognition method in which input speech signals are converted to digital signals and then time sequentially converted to cepstrum coefficients or logarithmic spectra. Dynamic spectrum time sequence is obtained by time frequency filtering of cepstrum coefficients, or masked spectrum time sequence is obtained by time frequency masking of the logarithmic vector time sequence. Based on the dynamic cepstrum time sequence or masked spectrum time sequence obtained in this manner, speech is recognized.

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