Patents
Patents for G10L 25 - Speech or voice analysis techniques not restricted to a single one of groups (4,910)
05/1997
05/20/1997US5632004 Method and apparatus for encoding/decoding of background sounds
05/14/1997CN1149739A Speed changeable voice signal regenerator
05/13/1997US5630015 Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
05/13/1997US5630014 Gain controller with automatic adjustment using integration energy values
05/02/1997EP0770254A2 Transmission system and method for encoding speech with improved pitch detection
04/1997
04/23/1997EP0476614B1 Speech coding and decoding system
04/23/1997CN1148231A Method of and apparatus for discriminating non-sounds and voiceless sounds of speech signals
04/16/1997EP0767950A2 Method and device for adapting a speech recognition equipment for dialectal variations in a language
04/15/1997US5621854 Method and apparatus for objective speech quality measurements of telecommunication equipment
04/15/1997US5621850 Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal
04/08/1997US5619566 Voice activity detector for an echo suppressor and an echo suppressor
04/02/1997EP0766468A2 Method and system for inserting a spread spectrum watermark into multimedia data
04/01/1997US5617505 Speech signal processing apparatus for cutting out a speech signal from a noisy speech signal
03/1997
03/20/1997WO1997010586A1 System for adaptively filtering audio signals to enhance speech intelligibility in noisy environmental conditions
03/20/1997CA2231107A1 System for adaptively filtering audio signals to enhance speech intelligibility in noisy environmental conditions
03/19/1997EP0763818A2 Formant emphasis method and formant emphasis filter device
03/19/1997EP0763813A1 Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
03/19/1997EP0763812A1 Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
03/19/1997EP0763811A1 Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
03/19/1997EP0763810A1 Speech signal processing apparatus for detecting a speech signal from a noisy speech signal
03/12/1997EP0762380A2 Pitch detection apparatus and method for acoustic waveform
03/06/1997WO1997008684A1 Pattern recognition
03/05/1997EP0760150A1 Computer system and computer-implemented process for phonology-based automatic speech recognition
02/1997
02/13/1997WO1997005730A1 Assessment of signal quality
02/12/1997EP0757866A1 Analogue signal coder
01/1997
01/30/1997WO1996036041A3 Transmission system and method for encoding speech with improved pitch detection
01/28/1997US5598506 Apparatus and a method for concealing transmission errors in a speech decoder
01/21/1997US5596678 Lost frame concealment
01/09/1997WO1997001101A1 A power spectral density estimation method and apparatus
01/09/1997CA2224680A1 A power spectral density estimation method and apparatus
01/03/1997WO1997000515A1 Method and arrangement for determining a pitch frequency in an acoustic signal
01/02/1997EP0751495A2 Method and device for coding speech
12/1996
12/11/1996EP0747879A1 Voice signal coding system
12/10/1996US5583961 Speaker recognition using spectral coefficients normalized with respect to unequal frequency bands
12/10/1996US5583784 Frequency analysis method
11/1996
11/26/1996US5579435 Discriminating between stationary and non-stationary signals
11/26/1996US5579432 Discriminating between stationary and non-stationary signals
11/14/1996WO1996036041A2 Transmission system and method for encoding speech with improved pitch detection
11/06/1996EP0741471A1 Non-intrusive measurement of telephone transmission line quality
11/05/1996US5572622 Rejected frame concealment
10/1996
10/24/1996WO1996028808A3 Method of detecting a pause between two signal patterns on a time-variable measurement signal
09/1996
09/19/1996WO1996028953A1 Signal quality determining device and method
09/19/1996WO1996028952A1 Signal quality determining device and method
09/19/1996WO1996028950A1 Signal quality determining device and method
09/19/1996WO1996028809A1 Arrangement and method relating to speech transmission and a telecommunications system comprising such arrangement
09/19/1996WO1996028808A2 Method of detecting a pause between two signal patterns on a time-variable measurement signal
09/18/1996EP0732687A2 Apparatus for expanding speech bandwidth
09/12/1996DE19508711A1 Verfahren zur Erkennung einer Signalpause zwischen zwei Mustern, welche in einem zeitvarianten Meßsignal vorhanden sind A method for identifying a signal pause between two patterns which are present in a time variant measurement signal
09/11/1996EP0730798A1 Method and apparatus for testing telecommunications equipment
09/11/1996CN1130961A Method and device for encoding signal, method and device for decoding signal, recording medium, and signal transmitting device
09/11/1996CN1130952A 语言活动性检测器 Language activity detector
09/10/1996US5555546 Apparatus for decoding a DPCM encoded signal
08/1996
08/22/1996WO1996025733A1 Voice activity detection
08/14/1996EP0550657B1 A method of, and system for, coding analogue signals
08/08/1996WO1996016533A3 Method for transforming a speech signal using a pitch manipulator
08/07/1996EP0725384A2 Adaptive transform coding
07/1996
07/24/1996EP0723258A1 Speech encoder with features extracted from current and previous frames
07/17/1996EP0722161A2 Method for pitch recognition, in particular for musical instruments which are excited by plucking or striking
07/11/1996WO1996021220A1 Speech coding method using synthesis analysis
07/11/1996WO1996021218A1 Speech coding method using synthesis analysis
07/11/1996CA2209623A1 Speech coding method using synthesis analysis
07/03/1996EP0719439A1 Voice activity detector
07/03/1996CN1126004A Method and device for encoding information, method and device for decoding information, information transmitting method, and information recording medium
06/1996
06/26/1996EP0718820A2 Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus
06/18/1996US5528725 Method and apparatus for recognizing speech by using wavelet transform and transient response therefrom
06/06/1996WO1996017341A1 Method for forming a cohort for use in identification of an individual
06/06/1996WO1996016533A2 Method for transforming a speech signal using a pitch manipulator
06/06/1996CA2206628A1 Method for forming a cohort for use in identification of an individual
06/05/1996DE4442613A1 Mobile radio communications network quality monitoring system
06/04/1996US5524173 Process and device for musical and vocal dynamic sound synthesis by non-linear distortion and amplitude modulation
05/1996
05/29/1996EP0714173A1 Method and device for encoding signal, method and device for decoding signal, recording medium, and signal transmitting device
05/22/1996EP0713295A1 Method and device for encoding information, method and device for decoding information, information transmitting method, and information recording medium
05/15/1996EP0712116A2 A robust pitch estimation method and device using the method for telephone speech
04/1996
04/24/1996CN1120965A Game apparatus, voice selection apparatus, voice recognition apparatus and voice response apparatus
04/16/1996CA2034333C Voice signal processing device
04/16/1996CA1338251C Adaptive multivariate estimating apparatus
04/10/1996EP0705501A1 Method and apparatus for testing telecommunications equipment using a reduced redundancy test signal
04/04/1996WO1996010248A1 A system and method for determining the tone of a syllable of mandarin chinese speech
03/1996
03/27/1996EP0703570A1 Speech analysis
03/13/1996EP0472578B1 Apparatus and methods for the generation of stabilised images from waveforms
03/07/1996WO1996007177A1 Apparatus and method for detecting speech in the presence of other sounds
03/05/1996CA2051304C Speech coding and decoding system
02/1996
02/29/1996WO1996006496A1 Analysis of audio quality
02/29/1996WO1996006495A1 Test method
02/22/1996WO1996000962A3 Method and device for adapting a speech recognition equipment for dialectal variations in a language
02/21/1996EP0697125A1 Process for vector quantization, especially of voice signals
02/21/1996EP0697124A1 Vector coding process, especially for voice signals
02/07/1996EP0696026A2 Speech coding device
02/06/1996US5490231 Noise signal prediction system
02/01/1996WO1996002911A1 Speech detection device
01/1996
01/31/1996CN1116011A Discriminating between stationary and non-stationary signals
01/17/1996EP0692883A1 Blind equalisation method, and its application to speech recognition
01/11/1996WO1996000962A2 Method and device for adapting a speech recognition equipment for dialectal variations in a language
01/10/1996EP0691640A2 Adaptive training method for pattern recognition
01/10/1996EP0691024A1 A method and apparatus for speaker recognition
01/10/1996EP0691022A1 Speech recognition with pause detection
01/09/1996US5483617 Elimination of feature distortions caused by analysis of waveforms
12/1995
12/27/1995CN1114122A A voice activity detector for an echo suppressor and an echo suppressor
12/26/1995US5479560 Formant detecting device and speech processing apparatus
12/21/1995WO1995034956A1 Method and device for encoding signal, method and device for decoding signal, recording medium, and signal transmitting device
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