Patents
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)
04/2009
04/15/2009CN101410890A Reduced number of channels decoding
04/15/2009CN101410889A Controlling spatial audio coding parameters as a function of auditory events
04/15/2009CN101409075A Method for transforming and quantifying line spectrum pair coefficient of G.729 standard
04/15/2009CN101409021A Sound music reading matter relating to splitting mode and pick-up
04/15/2009CN101408615A Method and device for measuring binaural sound time difference ILD critical apperceive characteristic
04/15/2009CN101408614A Method and device for measuring binaural sound strong difference ILD critical apperceive characteristic
04/14/2009US7519845 Software-based audio rendering
04/14/2009US7519538 Audio signal encoding or decoding
04/14/2009US7519535 Frame erasure concealment in voice communications
04/14/2009US7519533 Fixed codebook searching apparatus and fixed codebook searching method
04/14/2009US7519532 Transcoding EVRC to G.729ab
04/14/2009US7519531 Speaker adaptive learning of resonance targets in a hidden trajectory model of speech coarticulation
04/14/2009US7519530 Audio signal processing
04/14/2009US7519443 Information signal reproducing apparatus
04/14/2009US7519442 Process for adjusting the sound volume of a digital sound recording
04/14/2009US7518054 Audio reproduction apparatus, method, computer program
04/09/2009WO2009046460A2 Phase-amplitude 3-d stereo encoder and decoder
04/09/2009WO2009046225A2 Correlation-based method for ambience extraction from two-channel audio signals
04/09/2009WO2009046223A2 Spatial audio analysis and synthesis for binaural reproduction and format conversion
04/09/2009WO2009044346A1 System and method for combining adaptive golomb coding with fixed rate quantization
04/09/2009WO2009043287A1 Apparatus and method for noise generation
04/09/2009WO2008114085A3 Method and device for transmitting data in a communication system
04/09/2009WO2008049587A8 Apparatus and method for generating an ambient signal from an audio signal, apparatus and method for deriving a multi-channel audio signal from an audio signal and computer program
04/09/2009WO2007047037A3 An adaptive equalizer for a coded speech signal
04/09/2009WO2005070130A3 Speech recognition channel normalization utilizing measured energy values from speech utterance
04/09/2009US20090094038 Efficient design of mdct / imdct filterbanks for speech and audio coding applications
04/09/2009US20090094037 Adaptive Approach to Improve G.711 Perceptual Quality
04/09/2009US20090094026 Method of determining an estimated frame energy of a communication
04/09/2009US20090094025 Method for speech coding, method for speech decoding and their apparatuses
04/09/2009US20090094024 Coding device and coding method
04/09/2009US20090094023 Method, medium, and apparatus encoding scalable wideband audio signal
04/09/2009US20090094022 Apparatus for creating speaker model, and computer program product
04/09/2009US20090093898 Audio player for download and playback of audio files
04/09/2009US20090093897 Method of retrieving audio data via coded medium
04/09/2009US20090091481 Method and Apparatus for Signal Processing and Encoding and Decoding Method, and Apparatus Therefor
04/08/2009EP2045800A1 Method and apparatus for transcoding
04/08/2009EP2045799A1 Data processor
04/08/2009EP2044746A1 Method of transmitting data signals in a telephone network
04/08/2009EP2044589A1 Method and apparatus for lossless encoding of a source signal, using a lossy encoded data stream and a lossless extension data stream
04/08/2009EP1971978A4 Controlling the decoding of binaural audio signals
04/08/2009EP1846922A4 Method for two-channel coding of a message
04/08/2009EP1356459B1 Method and apparatus for interoperability between voice transmission systems during speech inactivity
04/08/2009CN101405804A Method and apparatus for correlating two data sections
04/08/2009CN101405792A Method for post-processing a signal in an audio decoder
04/08/2009CN101405791A Apparatus and method for generating audio subband values and apparatus and method for generating time-domain audio samples
04/07/2009US7516230 Method and device for the generation or decoding of a scalable data stream with provision for a bit-store, encoder and scalable encoder
04/07/2009US7516075 Hypersound document
04/07/2009US7516066 Audio coding
04/07/2009US7516064 Adaptive hybrid transform for signal analysis and synthesis
04/07/2009US7515733 Methods and arrangements employing digital content items
04/07/2009US7515661 Transmission device, transmission method, reception device, reception method, transmission/reception device, communication method, recording medium, and program
04/07/2009CA2249792C Audio signal compression method, audio signal compression apparatus, speech signal compression method, speech signal compression apparatus, speech recognition method, and speech recognition apparatus
04/02/2009WO2009042386A1 Apparatus and method for encoding a multi channel audio signal
04/02/2009WO2009042385A1 Method and apparatus for generating an audio signal from multiple microphones
04/02/2009WO2009039783A1 A processing method and device for network time delay character
04/02/2009WO2009039645A1 Method and device for efficient quantization of transform information in an embedded speech and audio codec
04/02/2009US20090089052 Signal Recording and Reproducing Apparatus and Method
04/02/2009US20090089051 Vocal fry detecting apparatus
04/02/2009US20090089050 Device and Method For Frame Lost Concealment
04/02/2009US20090089049 Method and apparatus for adaptively determining quantization step according to masking effect in psychoacoustics model and encoding/decoding audio signal by using determined quantization step
04/02/2009DE19705751B4 Verfahren und Gerät zur Übertragung eines Signals Method and apparatus for transmitting a signal
04/02/2009CA2697604A1 Method and device for efficient quantization of transform information in an embedded speech and audio codec
04/01/2009EP2043101A1 Signal recording and reproducing apparatus and method
04/01/2009EP2042001A1 Binaural spatialization of compression-encoded sound data
04/01/2009EP2041745A1 Adaptive encoding and decoding methods and apparatuses
04/01/2009EP2041744A1 Audio watermarking technique for motion picture presentations
04/01/2009EP2041743A1 Audio bitstream data structure arrangement of a lossy encoded signal together with lossless encoded extension data for said signal
04/01/2009EP2041742A1 Apparatus and method for restoring multi-channel audio signal using he-aac decoder and mpeg surround decoder
04/01/2009CN101401153A Improved coding/decoding of a digital audio signal, in CELP technique
04/01/2009CN101401152A Device and method for encoding by principal component analysis a multichannel audio signal
04/01/2009CN101401151A Device and method for graduated encoding of a multichannel audio signal based on a principal component analysis
04/01/2009CN101399676A Power saving and handling broadcast as unicast traffic in a wlan
04/01/2009CN101399043A Self-adapting multi-speed narrowband coding method and coder
04/01/2009CN101399042A Signal recording and reproducing apparatus and method
04/01/2009CN101399041A Encoding/decoding method and device for noise background
04/01/2009CN101399040A Spectrum parameter replacing method for hiding frames error
04/01/2009CN100474281C Low power digital audio decoding/playing system for computing devices
03/2009
03/31/2009USRE40691 Encoding decoding and compression of audio-type data using reference coefficients located within a band of coefficients
03/31/2009US7512549 Information processor and processing method, and information storage medium
03/31/2009US7512546 Store system
03/31/2009US7512539 Method and device for processing time-discrete audio sampled values
03/31/2009US7512536 Efficient filter bank computation for audio coding
03/31/2009US7512535 Adaptive postfiltering methods and systems for decoding speech
03/31/2009US7512534 Optimized windows and methods therefore for gradient-descent based window optimization for linear prediction analysis in the ITU-T G.723.1 speech coding standard
03/31/2009US7512320 Reproduction apparatus and reproducing method
03/31/2009CA2428477C Method and device for the generation of a scalable data stream and method and device for decoding a scalable data stream
03/26/2009WO2009039451A2 Efficient design of mdct / imdct filterbanks for speech and audio coding applications
03/26/2009WO2009038512A1 Joint enhancement of multi-channel audio
03/26/2009WO2009038170A1 Audio processing device, audio processing method, program, and musical composition / melody distribution system
03/26/2009WO2009038158A1 Audio decoding device, audio decoding method, program, and mobile terminal
03/26/2009WO2009038115A1 Audio encoding device, audio encoding method, and program
03/26/2009WO2009037852A1 Communication terminal device, communication system, and communication method
03/26/2009WO2009000073A8 Method and device for sound activity detection and sound signal classification
03/26/2009US20090083046 Efficient coding of digital media spectral data using wide-sense perceptual similarity
03/26/2009US20090083045 Device and Method for Graduated Encoding of a Multichannel Audio Signal Based on a Principal Component Analysis
03/26/2009US20090083044 Device and Method for Encoding by Principal Component Analysis a Multichannel Audio Signal
03/26/2009US20090083043 Method of coding a source audio signal, corresponding coding device, decoding method and device, signal, computer program products
03/26/2009US20090083040 Encoding and decoding a set of signals
03/26/2009US20090083031 Clipped-waveform repair in acoustic signals using generalized linear prediction
03/26/2009US20090083030 Method and apparatus for transmitting wideband speech signals