| Patents for G10L 25 - Speech or voice analysis techniques not restricted to a single one of groups (4,910) |
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| 07/08/2004 | US20040133420 Method of analysing a compressed signal for the presence or absence of information content |
| 07/07/2004 | CN1511312A High quality time-scaling and pitch-scaling of audio signals |
| 07/07/2004 | CN1511311A Method for comparing audio signal by characterisation based on auditory events |
| 07/06/2004 | US6760740 Method of calculating line spectral frequencies |
| 07/01/2004 | US20040125961 Silence detection |
| 06/30/2004 | EP1434197A1 Estimation method and apparatus of overall conversational speech quality |
| 06/30/2004 | CN1155942C Transmission system and method for encoding speech with improved pitch detection |
| 06/24/2004 | WO2004053837A1 A user terminal and method for distributed speech recognition |
| 06/23/2004 | CN1507616A Method and device for automatically differentiating and/or detecting acoustic signals |
| 06/17/2004 | US20040117815 Audience state estimation system, audience state estimation method, and audience state estimation program |
| 06/17/2004 | US20040117177 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 06/17/2004 | DE10254612A1 Verfahren zur Ermittlung spezifisch relevanter akustischer Merkmale von Schallsignalen für die Analyse unbekannter Schallsignale einer Schallerzeugung Method for determining specific relevant acoustic features of sound signals for the analysis of unknown sound signals of a sound generation |
| 06/16/2004 | EP1429316A1 System and method for multi-referenced correction of spectral voice distortions introduced by a communication network |
| 06/16/2004 | EP1428204A1 Method and apparatus for transmitting speech activity in distributed voice recognition systems |
| 06/16/2004 | EP1428147A2 Automatic content analysis and representation of multimedia presentations |
| 06/16/2004 | EP1163662A4 Method of determining the voicing probability of speech signals |
| 06/10/2004 | WO2004049303A1 Analysis of the vocal signal quality according to quality criteria |
| 06/10/2004 | WO2004049302A1 Method for determining acoustic features of acoustic signals for the analysis of unknown acoustic signals and for modifying sound generation |
| 06/10/2004 | WO2003096031A9 Voice activity detection (vad) devices and methods for use with noise suppression systems |
| 06/09/2004 | CN1504042A Audio signal quality enhancement in a digital network |
| 06/09/2004 | CN1153189C Method and apparatus for decreasing storage requirements for a voice recording system |
| 06/08/2004 | US6748354 Waveform coding method |
| 06/03/2004 | WO2004015629A3 Identification of digital data sequences |
| 06/03/2004 | US20040107105 Chaos-theoretical human factor evaluation apparatus |
| 06/01/2004 | US6745155 Methods and apparatuses for signal analysis |
| 05/27/2004 | WO2004027998A3 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 05/27/2004 | US20040102965 Determining a pitch period |
| 05/26/2004 | CN1151485C Sound and beat image display method and equipment |
| 05/25/2004 | US6741960 Harmonic-noise speech coding algorithm and coder using cepstrum analysis method |
| 05/25/2004 | CA2130211C System and method for passive voice verification in a telephone network |
| 05/20/2004 | US20040098225 Similar time series detection method and apparatus, program and recording medium |
| 05/20/2004 | US20040094019 Apparatus for analyzing an audio signal with regard to rhythm information of the audio signal by using an autocorrelation function |
| 05/19/2004 | CN1150516C Voice coding method and voice coder |
| 05/19/2004 | CN1150513C Speed changeable voice singal regenerator |
| 05/13/2004 | US20040093202 Method and system for the automatic detection of similar or identical segments in audio recordings |
| 05/12/2004 | EP1417583A1 Method and arrangement for search and recording of media signals |
| 05/12/2004 | CN1496558A Method and device for determing quality of speech signal |
| 05/12/2004 | CN1496083A Radio telephone and radio communication method |
| 05/06/2004 | EP1415505A1 Detecting voiced and unvoiced speech using both acoustic and nonacoustic sensors |
| 05/05/2004 | CN1494054A Characteristic quantity extracting apparatus |
| 04/29/2004 | WO2003098373A3 Voice authentication |
| 04/28/2004 | CN1493029A Method and apparatus for search and recording of media signals |
| 04/22/2004 | US20040078197 Method and device for determining the quality of a speech signal |
| 04/22/2004 | US20040076271 Audio signal quality enhancement in a digital network |
| 04/15/2004 | DE10243955A1 Verfahren und Vorrichtung zur Übertragung von Sprachsignalen mittels einer Flugzeug-Sprachübertragungseinrichtung Method and apparatus for transmission of speech signals by means of a plane-speech communications device |
| 04/14/2004 | EP1408484A2 Enhancing perceptual quality of sbr (spectral band replication) and hfr (high frequency reconstruction) coding methods by adaptive noise-floor addition and noise substitution limiting |
| 04/14/2004 | EP1099216B1 Audio signal time scale modification |
| 04/13/2004 | US6721699 Method and system of Chinese speech pitch extraction |
| 04/08/2004 | WO2003096031A3 Voice activity detection (vad) devices and methods for use with noise suppression systems |
| 04/08/2004 | WO2002089008A3 Automatic content analysis and representation of multimedia presentations |
| 04/08/2004 | US20040068401 Device and method for analysing an audio signal in view of obtaining rhythm information |
| 04/08/2004 | DE10245107A1 Voice Activity Detection auf Basis von unüberwacht trainierten Clusterverfahren Voice activity detection based on unsupervised clustering methods trained |
| 04/07/2004 | EP1406244A2 Voice activity detection based on unsupervised trained clustering |
| 04/07/2004 | CN1145143C Comprehensive analysized speech coding method |
| 04/06/2004 | US6718217 Digital audio tone evaluating system |
| 04/01/2004 | WO2004027998A2 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 04/01/2004 | DE10244699A1 Voice activity determining method for detecting phrases operates in a portion of an audio signal through phrase detection based on thresholds |
| 04/01/2004 | CA2688916A1 Method for reduction of aliasing introduced by spectral envelope adjustment in real-valued filterbanks |
| 03/31/2004 | EP1403783A2 Audio signal feature extraction |
| 03/25/2004 | US20040059570 Feature quantity extracting apparatus |
| 03/24/2004 | EP1401123A1 Method and device for transmitting speech signals via an aircraft speech communication system |
| 03/24/2004 | CN1484823A Audio decoder and audio decoding method |
| 03/23/2004 | US6711536 Speech processing apparatus and method |
| 03/18/2004 | US20040054526 Phase alignment in speech processing |
| 03/17/2004 | EP1397796A1 Speech quality indication |
| 03/16/2004 | US6708145 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting |
| 03/11/2004 | US20040049392 Content outputting apparatus |
| 03/11/2004 | US20040049380 Audio decoder and audio decoding method |
| 03/11/2004 | US20040049104 Wireless phone and wireless communication method |
| 03/10/2004 | EP1395977A2 Processing speech signals |
| 03/04/2004 | WO2002033880A9 Data reproducing/recording apparatus / method and list updating method |
| 03/03/2004 | EP1393480A2 Silence detection |
| 03/03/2004 | EP1393302A1 Method and device for automatically differentiating and/or detecting acoustic signals |
| 03/03/2004 | EP1393301A1 Estimating signal power in compressed audio |
| 03/03/2004 | EP1393300A1 Segmenting audio signals into auditory events |
| 03/03/2004 | EP1393299A1 A method and system for the automatic detection of similar or identical segments in audio recordings |
| 03/03/2004 | EP1393298A1 Comparing audio using characterizations based on auditory events |
| 02/26/2004 | US20040037436 System and process for locating a speaker using 360 degree sound source localization |
| 02/25/2004 | EP1391879A2 Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| 02/25/2004 | EP1391878A2 Speech coding apparatus, linear prediction coefficient analyzing apparatus and noise reducing apparatus |
| 02/25/2004 | EP1391876A1 Method of determining phonemes in spoken utterances suitable for recognizing emotions using voice quality features |
| 02/25/2004 | EP1390942A1 Method for time aligning audio signals using characterizations based on auditory events |
| 02/19/2004 | WO2004015629A2 Identification of digital data sequences |
| 02/19/2004 | DE10234130B3 Vorrichtung und Verfahren zum Erzeugen einer komplexen Spektraldarstellung eines zeitdiskreten Signals Apparatus and method for generating a complex spectral representation of a time-discrete signal |
| 02/12/2004 | WO2004013839A1 Arrangement and method for the generation of a complex spectral representation of a time-discrete signal |
| 02/12/2004 | WO2003048711A3 Speech detection system in an audio signal in noisy surrounding |
| 02/12/2004 | US20040030545 Pitch cycle search range setting apparatus and pitch cycle search apparatus |
| 02/11/2004 | EP1388145A1 Device and method for analysing an audio signal in view of obtaining rhythm information |
| 02/10/2004 | US6691090 Speech recognition system including dimensionality reduction of baseband frequency signals |
| 02/05/2004 | US20040024590 Apparatus and method for determining correlation coefficient between signals, and apparatus and method for determining signal pitch therefor |
| 02/04/2004 | EP1387348A1 Apparatus and method for determining correlation coefficient between signals, and apparatus and method for determining signal pitch therefore |
| 02/04/2004 | EP1386584A1 Chaos-theoretical human factor evaluation apparatus |
| 02/04/2004 | EP1386307A1 Method and device for determining a quality measure for an audio signal |
| 02/04/2004 | CN1472726A Device and method for determining coretative coefficient between signals and signal sectional distance |
| 02/03/2004 | US6687667 Method for quantizing speech coder parameters |
| 01/28/2004 | CN1471704A Pitch cycle search range setting device and pitch cycle search device |
| 01/28/2004 | CN1136538C Input voice interval normalization device for voice recognition |
| 01/28/2004 | CN1136536C Tone detecting device |
| 01/21/2004 | EP1382034A1 Method for determining intensity parameters of background noise in speech pauses of voice signals |
| 01/21/2004 | CN1470052A High frequency intensifier coding for bandwidth expansion speech coder and decoder |