Overflow speech detecting apparatus for speech recognition

Details Overflow speech detecting apparatus for speech recognition Overflow speech detecting apparatus for speech recognition

1990-07-13

1991-10-15

Kemeny, Emanuel S.

Electrical audio signal processing systems and devices

One-way audio signal program distribution

Public address system

G10L 500

Patent

active

050581686

ABSTRACT:
Time-serial pattern data of feature parameters representing the frequency feature of input speech is obtained from an input speech signal and is output from a frequency analyzer. This time-serial pattern data is plotted on the frequency and time base axes in relation to a power level. A Central Processing Unit detects that the feature parameters continuously exceed a predetermined value for a predetermined period of time or more. The detection output is supplied to an amplifier, and its input gain is controlled to be an optimal value.

REFERENCES:
patent: 4573187 (1986-02-01), Bui et al.
patent: 4597098 (1986-06-01), Noso et al.
patent: 4624008 (1986-11-01), Vensko et al.
patent: 4624009 (1986-11-01), Glenn et al.
patent: 4707857 (1987-11-01), Marley et al.
patent: 4720802 (1988-01-01), Damoulakis
patent: 4829578 (1989-05-01), Roberts

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