| Patents for G10L 25 - Speech or voice analysis techniques not restricted to a single one of groups (4,910) |
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| 12/23/2004 | US20040260537 Method for calculation a pitch period estimation of speech signals with variable step size |
| 12/22/2004 | EP1489596A1 Device and method for voice activity detection |
| 12/22/2004 | EP1488413A1 Anomaly recognition method for data streams |
| 12/22/2004 | CN1181467C Enhancing cell coding and decoding methods by adaptive noise-floor addition and noise substitution limiting and system thereof |
| 12/15/2004 | EP1485691A1 Method and system for measuring a system's transmission quality |
| 12/15/2004 | EP1224531B1 Method for detecting the time sequences of a fundamental frequency of an audio-response unit to be synthesised |
| 12/15/2004 | CN1555046A Information source decoder limited by adaptive noise-floor addition and noise substitution |
| 12/14/2004 | US6832195 System and method for robustly detecting voice and DTX modes |
| 12/09/2004 | WO2004107318A1 Audio coding |
| 12/08/2004 | EP1483591A2 Voice activity detection (vad) devices and methods for use with noise suppression systems |
| 12/07/2004 | US6829578 Tone features for speech recognition |
| 12/01/2004 | EP1480589A1 Method and apparatus for removing noise from electronic signals |
| 12/01/2004 | CN1552058A 2-phase pitch detection method and appartus |
| 11/25/2004 | WO2004075167A3 Log-likelihood ratio method for detecting voice activity and apparatus |
| 11/25/2004 | US20040236571 Subband method and apparatus for determining speech pauses adapting to background noise variation |
| 11/25/2004 | DE10311913B3 Verfahren und Vorrichtung zur Analyse von Sprachsignalen Method and apparatus for analyzing speech signals |
| 11/24/2004 | EP1480101A2 Content access control |
| 11/17/2004 | EP1293961B1 A signal processing method to analyse transients of a speech signal |
| 11/17/2004 | EP1046154B1 A vocoder-based voice recognizer |
| 11/16/2004 | US6820053 Method and apparatus for suppressing audible noise in speech transmission |
| 11/11/2004 | WO2004097795A2 Adaptive voice enhancement for low bit rate audio coding |
| 11/09/2004 | CA2309525C Method of detecting silence in a packetized voice stream |
| 11/04/2004 | US20040220802 Speech recognition using dual-pass pitch tracking |
| 11/03/2004 | EP1473709A1 Method for the identification of specific sounds |
| 11/03/2004 | CN1543640A Method and apparatus for transmitting speech activity in distributed voice recognition systems |
| 10/20/2004 | EP1468416A1 Method for qualitative evaluation of a digital audio signal |
| 10/20/2004 | CN1172293C Efficient spectral envelope coding method and its coding-decoding equipment |
| 10/14/2004 | WO2004088638A1 Method and system for speech quality prediction of an audio transmission system |
| 10/14/2004 | WO2004088633A1 Method for analyzing fundamental frequency information and voice conversion method and system implementing said analysis method |
| 10/13/2004 | EP1388145B1 Device and method for analysing an audio signal in view of obtaining rhythm information |
| 10/13/2004 | EP0916206B1 Process and device for evaluating the quality of a transmitted voice signal |
| 10/12/2004 | US6804651 Method and device for determining a measure of quality of an audio signal |
| 10/12/2004 | US6804646 Method and apparatus for processing a sound signal |
| 10/07/2004 | WO2004086361A1 Noise floor estimator |
| 10/07/2004 | US20040199383 Speech encoder, speech decoder, speech endoding method, and speech decoding method |
| 10/06/2004 | EP1465156A1 Method and system for determining the quality of a speech signal |
| 09/30/2004 | US20040192192 Method and apparatus for mobile phone using semiconductor device capable of inter-processing voice signal and audio signal |
| 09/29/2004 | EP1393302B1 Method and device for automatically differentiating and/or detecting acoustic signals |
| 09/23/2004 | WO2004081917A1 Apparatus and methods for vocal tract analysis of speech signals |
| 09/23/2004 | WO2004059614A3 A method and apparatus for enhancing the perceptual quality of synthesized speech signals |
| 09/23/2004 | US20040186731 Estimation method and apparatus of overall conversational speech quality, program for implementing the method and recording medium therefor |
| 09/23/2004 | US20040186715 Quality assessment tool |
| 09/23/2004 | US20040186708 Device and method for controlling electronic output signals as a function of received audible tones |
| 09/22/2004 | EP1459214A1 Method for characterizing a sound signal |
| 09/22/2004 | EP0970466B1 Voice conversion |
| 09/15/2004 | EP1458145A1 Error concealment apparatus and method |
| 09/15/2004 | EP1456837A1 Method and device for voice recognition |
| 09/15/2004 | EP1157374B1 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting |
| 09/15/2004 | EP0713295B1 Method and device for encoding information, method and device for decoding information |
| 09/10/2004 | WO2004077090A1 Method for detection of own voice activity in a communication device |
| 09/09/2004 | US20040176062 Method for detecting a tone signal through digital signal processing |
| 09/08/2004 | CN1527994A Fast frequency-domain pitch estimation |
| 09/08/2004 | CN1165855C System, method, device for distributing data and data reproduction device |
| 09/07/2004 | CA2256064C Device for determining the quality of an output signal to be generated by a signal processing circuit, and also method |
| 09/02/2004 | WO2004075184A1 Method for embedding and detecting a watermark in a digital audio signal |
| 09/02/2004 | WO2004075167A2 Log-likelihood ratio method for detecting voice activity and apparatus |
| 09/02/2004 | WO2004075074A1 Chaologic index value calculation system |
| 09/02/2004 | US20040172241 Method and system of correcting spectral deformations in the voice, introduced by a communication network |
| 09/02/2004 | CA2516982A1 A chaos theoretical exponent value calculation system |
| 09/01/2004 | EP1453287A1 Automatic management of conversational groups |
| 09/01/2004 | EP1451808A1 Method of operating a barge-in dialogue system |
| 09/01/2004 | EP1451804A1 Methods and apparatus for pitch determination |
| 09/01/2004 | EP1451548A2 Speech detection system in an audio signal in noisy surrounding |
| 08/25/2004 | CN1524258A Segmenting audio signals into auditory events |
| 08/25/2004 | CN1524237A Automatic content analysis and representation of multimedia presentations |
| 08/25/2004 | CN1523856A Estimation method and apparatus of overall conversational speech quality, program and recording medium for realizing the method |
| 08/19/2004 | WO2004070704A1 Signal processing |
| 08/19/2004 | US20040162722 Speech quality indication |
| 08/19/2004 | US20040162684 Quality assessment tool |
| 08/19/2004 | US20040159220 2-phase pitch detection method and apparatus |
| 08/18/2004 | CN1162835C Method for detecting phonetic activity in signals and phonetic signal encoder including device thereof |
| 08/12/2004 | WO2004068379A1 Information processing system, information processing device, information processing method, program, and recording medium |
| 08/12/2004 | US20040158465 Speech processing apparatus and method |
| 08/12/2004 | US20040158462 Pitch candidate selection method for multi-channel pitch detectors |
| 08/10/2004 | US6775650 Method for conditioning a digital speech signal |
| 08/05/2004 | WO2004066273A1 Noise reduction and audio-visual speech activity detection |
| 08/05/2004 | US20040153941 Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit |
| 08/05/2004 | US20040153315 Quality assessment tool |
| 08/04/2004 | EP1443498A1 Noise reduction and audio-visual speech activity detection |
| 08/04/2004 | EP1443497A1 Audio signal quality assessment method |
| 08/04/2004 | EP1443496A1 Non-intrusive speech signal quality assessment tool |
| 08/04/2004 | CN1160940C Code gererating method, detection method and its equipment, water mark embedding device and detector |
| 08/04/2004 | CN1160699C 语音识别系统 Speech recognition system |
| 07/29/2004 | US20040148168 Method and device for automatically differentiating and/or detecting acoustic signals |
| 07/29/2004 | DE10253868B3 Test and reference pattern synchronization method e.g. for speech recognition system, has test pattern potential synchronization points associated with reference synchronization points |
| 07/28/2004 | EP1441329A1 Audio signal quality assessment method and apparatus |
| 07/28/2004 | CN1516496A Transmission system including at least a coder |
| 07/22/2004 | US20040143742 Code generating method and unit thereof, code detecting method and unit thereof, and watermark embedding unit and watermark detecting unit |
| 07/21/2004 | CN1514996A Improved method for determining quality of speech signal |
| 07/15/2004 | WO2004059986A1 Method and system for augmenting an audio signal |
| 07/15/2004 | WO2004059615A1 Method and system to mark an audio signal with metadata |
| 07/15/2004 | WO2004059614A2 A method and apparatus for enhancing the perceptual quality of synthesized speech signals |
| 07/15/2004 | US20040138880 Estimating signal power in compressed audio |
| 07/15/2004 | US20040138875 Method for determining the quality of a speech signal |
| 07/14/2004 | EP1436805A1 2-phase pitch detection method and appartus |
| 07/14/2004 | EP1216474B1 Efficient spectral envelope coding using variable time/frequency resolution |
| 07/14/2004 | EP0996111B1 Speech processing apparatus and method |
| 07/14/2004 | CN1513278A Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors |
| 07/08/2004 | WO2004056298A1 Method and apparatus for removing noise from electronic signals |
| 07/08/2004 | US20040133424 Processing speech signals |