| Patents for G10L 19 - Speech or audio signal analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis (31,960) |
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| 12/23/2009 | CN101609674A Method, device and system for coding and decoding |
| 12/23/2009 | CN100574114C Coding method, apparatus, decoding method and apparatus |
| 12/23/2009 | CN100573666C Substrip analysis/synthetic filtering method |
| 12/23/2009 | CN100573665C Apparatus and method for measuring energy |
| 12/23/2009 | CN100573662C Method of reflecting time/language distortion in objective speech quality assessment |
| 12/22/2009 | US7636692 Information processing apparatus, information processing method, program recording medium, and data recording medium |
| 12/22/2009 | US7636660 Subband synthesis filtering process and apparatus |
| 12/22/2009 | US7636659 Computer-implemented methods and systems for modeling and recognition of speech |
| 12/22/2009 | US7636055 Signal decoding apparatus and signal decoding method |
| 12/22/2009 | CA2521445C Code conversion method and apparatus |
| 12/17/2009 | WO2009152124A1 Concealing audio artifacts |
| 12/17/2009 | WO2009151578A2 Method and apparatus for blind signal recovery in noisy, reverberant environments |
| 12/17/2009 | WO2009150932A1 Audio quality estimation method, audio quality estimation device, and program |
| 12/17/2009 | WO2009150780A1 Data reproducing method, data reproducing device and data reproducing program |
| 12/17/2009 | WO2009150291A1 High-quality encoding at low-bit rates |
| 12/17/2009 | WO2009150290A1 Method and apparatus for error concealment of encoded audio data |
| 12/17/2009 | WO2009150288A1 Method, apparatus and computer program product for providing improved audio processing |
| 12/17/2009 | US20090313029 Method And System For Backward Compatible Multi Channel Audio Encoding and Decoding with the Maximum Entropy |
| 12/17/2009 | US20090313028 Method, apparatus and computer program product for providing improved audio processing |
| 12/17/2009 | US20090313012 Teleconference terminal apparatus, relaying apparatus, and teleconferencing system |
| 12/17/2009 | US20090313009 Method for Trained Discrimination and Attenuation of Echoes of a Digital Signal in a Decoder and Corresponding Device |
| 12/17/2009 | US20090308229 Decoding sound parameters |
| 12/16/2009 | EP2134013A1 Digital broadcast transmitting apparatus, digital broadcast receiving apparatus, and digital broadcast transmitting/receiving system |
| 12/16/2009 | EP2133872A1 Encoding device and encoding method |
| 12/16/2009 | EP2133871A1 Data embedding device, data extracting device, and audio communication system |
| 12/16/2009 | EP2133867A1 A method, device and system to achieve hiding the loss packet |
| 12/16/2009 | EP2132733A1 Non-causal postfilter |
| 12/16/2009 | EP2132732A1 Postfilter for layered codecs |
| 12/16/2009 | EP2132731A1 Method and arrangement for smoothing of stationary background noise |
| 12/16/2009 | EP1676263B1 Audio encoding |
| 12/16/2009 | CN101606196A Embedded silence and background noise compression |
| 12/16/2009 | CN101606195A Improved ratio of speech to non-speech audio such as for elderly or hearing-impaired listeners |
| 12/16/2009 | CN101606194A Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples |
| 12/16/2009 | CN101606193A Audio encoding and decoding apparatus and method |
| 12/16/2009 | CN101606192A Low complexity parametric stereo decoder |
| 12/16/2009 | CN101604983A Device, system and method for coding and decoding |
| 12/16/2009 | CN101604527A Method for hidden transferring of wideband voice based on G.711 coding under VoIP environment |
| 12/16/2009 | CN101604526A Weight-based system and method for calculating audio frequency attention |
| 12/16/2009 | CN101604525A Pitch gain obtaining method, pitch gain obtaining device, coder and decoder |
| 12/16/2009 | CN101604524A Stereo coding method, stereo coding device, stereo decoding method and stereo decoding device |
| 12/16/2009 | CN101604523A Method for hiding redundant information in G.711 phonetic coding |
| 12/16/2009 | CN100571450C System and method for providing interactive audio in a multi-channel audio environment |
| 12/16/2009 | CN100570709C Speech signal compression device, speech signal compression method, and program |
| 12/16/2009 | CN100570294C Frequency-characteristic-acquisition device, frequency-characteristic-acquisition method, and sound-signal-processing device |
| 12/15/2009 | US7634413 Bitrate constrained variable bitrate audio encoding |
| 12/15/2009 | US7634410 Method of audio-intonation calibration |
| 12/15/2009 | US7634402 Apparatus for coding of variable bitrate wideband speech and audio signals, and a method thereof |
| 12/15/2009 | US7634400 Device and process for use in encoding audio data |
| 12/15/2009 | US7634399 Voice transcoder |
| 12/15/2009 | CA2188493C Speech encoding/decoding method and apparatus using lpc residuals |
| 12/10/2009 | WO2009149349A1 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | WO2009149337A1 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | WO2009148858A2 Factorization of overlapping transforms into two block transforms |
| 12/10/2009 | WO2009146734A1 Multi-channel audio coding |
| 12/10/2009 | US20090307294 Conversion Between Sub-Band Field Representations for Time-Varying Filter Banks |
| 12/10/2009 | US20090306994 method and an apparatus for identifying frame type |
| 12/10/2009 | US20090306993 Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream |
| 12/10/2009 | US20090306992 Method for switching rate and bandwidth scalable audio decoding rate |
| 12/10/2009 | US20090306974 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | US20090306972 Dropout Concealment for a Multi-Channel Arrangement |
| 12/10/2009 | US20090306971 Audio signal quality enhancement apparatus and method |
| 12/10/2009 | US20090306970 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | US20090304198 Audio signal decorrelator, multi channel audio signal processor, audio signal processor, method for deriving an output audio signal from an input audio signal and computer program |
| 12/10/2009 | US20090304032 Real-time jitter control and packet-loss concealment in an audio signal |
| 12/10/2009 | DE19638997B4 Digitales Toncodierungsverfahren und digitale Toncodierungsvorrichtung Digital Toncodierungsverfahren and digital Toncodierungsvorrichtung |
| 12/10/2009 | CA2848480A1 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | CA2724909A1 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/10/2009 | CA2724615A1 System and method of an in-band modem for data communications over digital wireless communication networks |
| 12/09/2009 | EP2131356A2 Method and apparatus for audio signal processing |
| 12/09/2009 | EP2130204A1 Method and apparatus for conversion between multi-channel audio formats |
| 12/09/2009 | EP2130019A1 Speech enhancement employing a perceptual model |
| 12/09/2009 | EP1730725B1 Efficient coding of digital audio spectral data using spectral similarity |
| 12/09/2009 | CN101601087A Device for encoding and decoding |
| 12/09/2009 | CN101599285A Method and system for recording audios |
| 12/09/2009 | CN101599273A Coding and decoding method of gradable vector quantification |
| 12/09/2009 | CN101599272A Keynote searching method and device thereof |
| 12/09/2009 | CN100568740C Apparatus and method of encoding/decoding an audio signal |
| 12/09/2009 | CN100568344C Method for improving the coding efficiency of an audio signal |
| 12/09/2009 | CN100568343C Apparatus and method for generating pitch waveform signal and apparatus and method for compressing speech signal |
| 12/08/2009 | US7631358 Copy protection method for digital data stored on a medium |
| 12/08/2009 | US7630902 Apparatus and methods for digital audio coding using codebook application ranges |
| 12/08/2009 | US7630894 Frame erasure concealment technique for a bitstream-based feature extractor |
| 12/08/2009 | US7630891 Voice region detection apparatus and method with color noise removal using run statistics |
| 12/08/2009 | US7630890 Block-constrained TCQ method, and method and apparatus for quantizing LSF parameter employing the same in speech coding system |
| 12/08/2009 | US7630889 Code conversion method and device |
| 12/08/2009 | US7630887 Enhancing the intelligibility of received speech in a noisy environment |
| 12/08/2009 | US7630886 Hochwald construction of unitary matrix codebooks via eigen coordinate transformations |
| 12/08/2009 | US7630885 Dialed digits based vocoder assignment |
| 12/08/2009 | US7630884 Code conversion method, apparatus, program, and storage medium |
| 12/08/2009 | US7630883 Apparatus and method for creating pitch wave signals and apparatus and method compressing, expanding and synthesizing speech signals using these pitch wave signals |
| 12/08/2009 | US7630882 Frequency segmentation to obtain bands for efficient coding of digital media |
| 12/08/2009 | US7630881 Bandwidth extension of bandlimited audio signals |
| 12/08/2009 | US7630492 Secure audio stream scramble system |
| 12/08/2009 | US7630396 Multichannel signal coding equipment and multichannel signal decoding equipment |
| 12/08/2009 | US7630366 Multiplexing apparatus, multiplexing method, program, and recording medium |
| 12/08/2009 | CA2440685C Method and device for determining the quality of a speech signal |
| 12/08/2009 | CA2368453C Using gain-adaptive quantization and non-uniform symbol lengths for audio coding |
| 12/03/2009 | WO2009146047A2 Adaptive primary-ambient decomposition of audio signals |
| 12/03/2009 | WO2009144953A1 Encoder, decoder, and the methods therefor |
| 12/03/2009 | WO2009144649A1 A frequency domain encoder for converting an input signal into an output data, a frequency domain decoder for converting an input data into an output signal |