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Data Processing: Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/decompression > Speech Signal Processing > For Storage Or Transmission > Time > Zero Crossing Zero CrossingZero Crossing patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/02/06 - 20060247924 - Method and system for masking speech A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained. The speech signal is then temporally partitioned into segments, preferably corresponding to phonemes within the ... 10/26/06 - 20060241939 - Method and system for masking speech A simple and efficient method for producing an obfuscated speech signal which may be used to mask a stream of speech, is disclosed. A speech signal representing the speech stream to be masked is obtained. The speech signal is then temporally partitioned into segments, preferably corresponding to phonemes within the ... 08/17/06 - 20060184359 - Method and system for low bit rate voice encoding and decoding applicable for any reduced bandwith rquirements including wireless An implementation of the present invention comprises a voice encoder and decoder method and system that uses voice excitation, eliminating the voice/unvoiced pitch tracking, and the first formant up to 2400 Hertz, does not use pulse code modulation encoding, but uses the zero crossings only of the first formant, dividing ... 11/03/05 - 20050246167 - Sound source search system It is possible to simultaneously identify the sound coming direction from a sound source in all directions and estimate the sound intensity of the sound source. A plurality of microphones (11) are arranged on the surface of a baffle (10) of a shape such as a sphere and polyhedron so ... 09/29/05 - 20050216260 - Method and apparatus for evaluating speech quality A method for processing speech data includes determining a presence of impulsive distortion in the speech data from root mean square (RMS) and zero crossing rate (ZCR) values of the speech data. For instance, in one embodiment determining the presence of impulsive distortion includes identifying a low ZCR value and ... 08/25/05 - 20050187761 - Apparatus, method, and medium for distinguishing vocal sound from other sounds An apparatus, method, and medium for distinguishing a vocal sound. The apparatus includes: a framing unit dividing an input signal into frames, each frame having a predetermined length; a pitch extracting unit determining whether each frame is a voiced frame or an unvoiced frame and extracting a pitch contour from ... ### FreshPatents.com Support |