Electrical audio signal processing systems and devices – One-way audio signal program distribution – Public address system
Patent
1989-09-01
1991-05-21
Shaw, Dale M.
Electrical audio signal processing systems and devices
One-way audio signal program distribution
Public address system
381 30, 341 50, 341 95, G10L 300, G06F 500
Patent
active
050181998
ABSTRACT:
Human speech is analyzed and a feature parameter is extracted from the human speech. The feature parameter is quantized and a quantization parameter is generated. Part of the bits of the quantization parameter is a predetermined bit pattern when the feature parameter is in a predetermined range. The part of the bits of the quantization parameter is tranformed into an additive parameter of at least one bit. The human speech is synthesized on the basis of the quantization parameter and the additive parameter. It is possible to nonlinearly quantize human speech into a quantization parameter having a small number of bits and to generate the synthesis parameter from the quantization parameter using a small size circuit.
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Nakajima Takao
Shigehara Hiroshi
Kabushiki Kaisha Toshiba
Knepper David D.
Shaw Dale M.
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