Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1992-12-16
1994-08-23
Shaw, Dale M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
395 225, G10L 302
Patent
active
053414322
ABSTRACT:
In a speech rate modification system and method, correlation functions between different segments of input speech signal are computed by a correlator (17), the amplitude of the input signal is controlled by two multipliers (19, 20) which multiply the input speech signal by an increasing window function and by a decreasing window function, or vice versa, respectively, produced by a window function generator (18), and then output signals of the multipliers (19, 20) are added to each other by an adder (21) at such a relative delay within one unitary segment (T) as to maximize the value of the correlation function, and the input voice signal and the output of the adder (21) are selected by a multiplier (22), to be issued as a rate-modified speech signal.
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Misaki Masayuki
Suzuki Ryoji
Matsushita Electric - Industrial Co., Ltd.
Shaw Dale M.
Tung Kee M.
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