Speech detection device for the detection of speech end points b

Details Speech detection device for the detection of speech end points b Speech detection device for the detection of speech end points b

1993-08-12

1997-04-01

MacDonald, Allen R.

395 257, 395 262, 395 223, 395 235, G10L 900

Patent

active

056175086

ABSTRACT:
The device detects the beginning and ending portions of speech contained within an input signal based on the variance of frequency band limited energy within the signal. The use of the variance allows detection which is relatively independent of an absolute signal-to-noise ratio with the signal, and allows accurate detection within a wide variety of backgrounds such as music, motor noise, and background noise, such as other speakers. The device can be easily implemented using off-the-shelf hardware along with a high-speed special purpose digital signal processor integrated circuit.

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"A Robust Speech/Non-Speech Detection Algorithm Using Time and Frequency-Based Features," by Brian Mak et al., 1992, IEEE, pp. I-269-I-272.

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