Patents
Patents for G10L 25 - Speech or voice analysis techniques not restricted to a single one of groups (4,910)
01/2004
01/21/2004CN1135529C Communication network for transmitting speech signals
01/15/2004WO2004006599A1 System and method for robustly detecting voice and dtx modes
01/14/2004EP1380029A1 Time-scale modification of signals applying techniques specific to determined signal types
01/08/2004WO2002086860B1 Processing speech signals
01/08/2004US20040006462 System and method for robustly detecting voice and DTX modes
01/07/2004EP1377967A2 High quality time-scaling and pitch-scaling of audio signals
01/07/2004EP1377962A1 Method of analysing a compressed signal for the presence or absence of information content
01/02/2004EP1374229A1 Method and device for determining the quality of a speech signal
01/02/2004EP1032933B1 Speech coding method and terminals for implementing said method
01/01/2004US20040002853 Method and device for speech analysis
12/2003
12/31/2003WO2004002162A1 Method for generating hashes from a compressed multimedia content
12/24/2003CN1132152C 用于执行音频信号的传输质量的机器支持的评估的方法 A method for performing a transmission quality of the audio signal of the machine support assessment
12/24/2003CN1132149C Game appts. voice selection appts. voice recognition appts. adn voice response appts.
12/18/2003US20030231775 Robust detection and classification of objects in audio using limited training data
12/17/2003EP1371055A2 Device for the analysis of an audio signal with regard to the rhythm information in the audio signal using an auto-correlation function
12/17/2003CN1462427A Estimating signal power in compressed audio
12/17/2003CN1462426A Silence detector
12/17/2003CN1131508C Transmission system comprising at least a coder
12/11/2003WO2003102922A1 Audio coding
12/09/2003US6662156 Speech detection device having multiple criteria to determine end of speech
12/04/2003WO2003100767A1 Apparatus and method for vocal tract analysis of speeech signals
12/04/2003WO2003100372A1 Method in a digital network system for controlling the transmission of terminal equipment
12/03/2003EP1228505B1 Non-intrusive speech-quality assessment
12/03/2003EP0979504B1 System and method for noise threshold adaptation for voice activity detection in nonstationary noise environments
12/03/2003CN1460249A Time-scale modification of signals applying techniques specific to determined signal types
12/03/2003CN1130057C Method and device for blind equalizing of transmission channel effects on digital speech signal
12/02/2003US6658380 Method for detecting speech activity
12/02/2003US6657114 Apparatus and method for generating additional sound on the basis of sound signal
11/2003
11/27/2003WO2003098373A2 Voice authentication
11/20/2003WO2003096031A2 Voice activity detection (vad) devices and methods for use with noise suppression systems
11/20/2003CA2477767A1 Voice activity detection (vad) devices and methods for use with noise suppression systems
11/19/2003EP1247389B1 Method and platform for evaluating speech quality in telephone communications
11/19/2003CN1128436C Signal processing techniques for time-scale and/or pitch modification of audio signals
11/18/2003US6651041 Method for executing automatic evaluation of transmission quality of audio signals using source/received-signal spectral covariance
11/12/2003CN1127884C Signal quality determining device and method
11/06/2003WO2003091990A1 Robust and invariant audio pattern matching
11/05/2003EP1048025B1 Method for objective voice quality evaluation
11/05/2003CN1127053C Method of and apparatus for discriminating non-sounds and voiceless sounds of speech signals
10/2003
10/30/2003WO2003090205A1 Method for synthesizing speech
10/28/2003US6640208 Voiced/unvoiced speech classifier
10/23/2003WO2003088534A1 Feature-based audio content identification
10/22/2003CN1125432C Vocoder-based voice recognizer, recognizing method and digital cellulr telephone
10/16/2003WO2003085645A1 Coding of stereo signals
10/16/2003WO2003085536A1 Method for protecting work content in electronic work distribution
10/15/2003EP1353463A1 Method for channel allocation in a TDD system by using Voice Activity Detection
10/09/2003US20030191633 Method for determining intensity parameters of background nose in speech pauses of voice signals
10/08/2003EP1351493A2 Image processing apparatus, computer readable medium storing program, image processing method, method for producing dynamic image, and printer
10/02/2003WO2003081577A1 Anomaly recognition method for data streams
10/02/2003WO2003081575A1 Chaos theoretical diagnosis sensitizer
10/02/2003US20030184826 Image processing apparatus, computer readable medium storing program, image processing method, method for producing dynamic image, and printer
09/2003
09/30/2003US6629068 Calculating a postfilter frequency response for filtering digitally processed speech
09/30/2003US6629067 Range control system
09/24/2003EP1346553A1 Audio signal quality enhancement in a digital network
09/18/2003WO2003077236A1 A method and system for controlling potentially harmful signals in a signal arranged to convey speech
09/18/2003WO2003076889A1 Method and system for measuring a system's transmission quality
09/18/2003US20030177002 Pitch extraction methods and systems for speech coding using sub-multiple time lag extraction
09/18/2003US20030177001 Pitch extraction methods and systems for speech coding using multiple time lag extraction
09/17/2003CN1121684C Method and apparatus for selectively changing digital signal
09/17/2003CN1121677C Device for determining quality of output signal to be generated by a signal processing circuit, and method therefor
09/11/2003US20030172277 Digital watermark system
09/11/2003US20030171922 Method and device for objective speech quality assessment without reference signal
09/11/2003US20030171917 Method and device for analyzing a wave signal and method and apparatus for pitch detection
09/10/2003EP1343145A1 Method and system for measuring a sytems's transmission quality
09/10/2003EP0950238B1 Speech coding and decoding system
09/10/2003CN1441403A Voice speed changing method and its device
09/08/2003CA2375589A1 Method and apparatus for determining user satisfaction with automated speech recognition (asr) system and quality control of the asr system
09/04/2003WO2003073790A1 Voice detection and discrimination apparatus and method
09/02/2003US6615174 Voice conversion system and methodology
09/02/2003US6615169 High frequency enhancement layer coding in wideband speech codec
08/2003
08/28/2003US20030163312 Speech processing apparatus and method
08/28/2003US20030161468 Storage device and system
08/27/2003EP1339256A2 Method for manufacturing acoustical devices and for reducing wind disturbances
08/27/2003EP1339043A1 Pitch cycle search range setting device and pitch cycle search device
08/27/2003EP1339041A1 Audio decoder and audio decoding method
08/27/2003EP1195064B1 Method for evaluating the quality of audio-visual sequences
08/27/2003EP1141937B1 Method and apparatus for decreasing storage requirements for a voice recording system
08/27/2003CN1119919C Signal quality determining device and method
08/26/2003CA2288115C System and method for noise threshold adaptation for voice activity detection in nonstationary noise environments
08/21/2003US20030158732 Voice barge-in in telephony speech recognition
08/20/2003EP1336175A1 Wideband extension of telephone speech for higher perceptual quality
08/20/2003CN1437746A Method and apparatus for tracking the phase of a quasi-periodic signal
08/19/2003US6608924 Neural network model for compressing/decompressing image/acoustic data files
08/14/2003US20030154379 Watermark data embedding apparatus and extracting apparatus
08/13/2003EP1335351A2 Pitch extraction methods and systems for speech coding using interpolation techniques
08/13/2003EP1335350A2 Pitch extraction methods and systems for speech coding using interpolation techniques
08/13/2003EP1335349A2 Pitch extraction methods and systems for speech coding using multiple time lag extraction
08/12/2003US6606592 Variable dimension spectral magnitude quantization apparatus and method using predictive and mel-scale binary vector
08/07/2003US20030149560 Pitch extraction methods and systems for speech coding using interpolation techniques
08/07/2003US20030149558 Method and device for determination of prosodic markers
08/06/2003EP1250830B1 Method and device for determining the quality of a signal
08/06/2003CN1117343C Method and device for detecting voice sections, and speech velocity conversion method and device utilizingsaid method and device
07/2003
07/31/2003WO2003063138A1 Voice activity detector and validator for noisy environments
07/31/2003WO2003063134A1 Method for qualitative evaluation of a digital audio signal
07/31/2003WO2002097790A8 Comparing audio using characterizations based on auditory events
07/31/2003CA2474067A1 A method of qualitatively evaluating a digital audio signal
07/23/2003EP1328928A2 Apparatus for bandwidth expansion of a speech signal
07/17/2003US20030135371 Voice recognition system method and apparatus
07/16/2003CN1430204A Method and equipment for waveform signal analysing, fundamental tone detection and sentence detection
07/16/2003CN1115079C Signal quality determining device and method
07/10/2003WO2003056455A1 Method for characterizing a sound signal
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