Patents
Sitemap › G10 - Musical instruments; Acoustics › G10L - Speech analysis or synthesis; Speech recognition; Speech or voice processing; Speech or audio coding or decoding › 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
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)
10/1998
10/01/1998WO1998043405A2 A method and system for manipulation of audio or video signals
10/01/1998CA2735333A1 A method for manipulation of audio or video signals
09/1998
09/30/1998EP0868031A1 Signal coding method and apparatus
09/30/1998EP0867884A2 Digital audio recorder and player with address backup function
09/30/1998EP0867867A2 Information encoding method and apparatus, information decoding method and apparatus and information recording medium
09/30/1998EP0867863A1 Method and apparatus of vector searching for VSELP data compression
09/30/1998EP0867862A2 Coding and decoding system for speech and musical sound
09/30/1998EP0867003A2 Method of and system for transmitting and/or retrieving real-time video and audio information over performance-limited transmission systems
09/30/1998EP0699334A4 Method and apparatus for group encoding signals
09/30/1998CN1194737A Encoding apparatus for encoding a plurality of information signals
09/30/1998CN1194551A Digital radio communication machine
09/30/1998CN1194507A Device for producing confortable noise and voice coding and decoding device including said device
09/29/1998US5815503 In a multi-function communications system
09/24/1998WO1998042083A1 Audio coding method and apparatus
09/23/1998EP0866443A2 Speech signal coder
09/23/1998EP0865685A1 Data compression and expansion of an audio signal
09/23/1998EP0700622A4 An integrated video and audio signal distribution system for use on commercial aircraft and other vehicles
09/23/1998CN1193786A Dual subframe quantization of spectral magnitudes
09/22/1998US5812982 Digital data encoding apparatus and method thereof
09/22/1998US5812971 Enhanced joint stereo coding method using temporal envelope shaping
09/22/1998US5812967 Recursive pitch predictor employing an adaptively determined search window
09/22/1998US5812966 Pitch searching time reducing method for code excited linear prediction vocoder using line spectral pair
09/22/1998US5812965 Process and device for creating comfort noise in a digital speech transmission system
09/22/1998US5812447 Method and apparatus to write and/or read two types of data from memory
09/22/1998US5812219 System and method for transmitting picture or sound signals
09/22/1998CA2131280C Structured quantizer for sources with memory
09/22/1998CA2124713C Long term predictor
09/22/1998CA2100154C Switched signal processing circuit
09/17/1998WO1998041000A1 Mobile telephone having continuous recording capability
09/17/1998WO1998040878A1 Vocoder for coding speech using correlation between spectral magnitudes and candidate excitations
09/17/1998WO1998040877A1 Voice encoder, voice decoder, voice encoder/decoder, voice encoding method, voice decoding method and voice encoding/decoding method
09/17/1998DE19811039A1 Verfahren und Vorrichtungen zum Codieren und Decodieren von Audiosignalen Methods and apparatuses for encoding and decoding of audio signals
09/17/1998CA2283187A1 A method and apparatus for speech encoding, speech decoding, and speech coding/decoding
09/16/1998EP0865187A1 Telephone set including a digital processing circuit for speech signals and method carried out in such an apparatus
09/16/1998EP0865029A1 Efficient decomposition in noise and periodic signal waveforms in waveform interpolation
09/16/1998EP0865028A1 Waveform interpolation speech coding using splines functions
09/16/1998EP0865027A2 Method for coding the random component vector in an ACELP coder
09/16/1998EP0864146A1 Multi-channel predictive subband coder using psychoacoustic adaptive bit allocation
09/16/1998CN1193159A Speech encoding and decoding method and apparatus, telphone set, tone changing method and medium
09/16/1998CN1193158A Speech encoding method and apparatus, and sound signal encoding method and apparatus
09/15/1998US5809474 Audio encoder adopting high-speed analysis filtering algorithm and audio decoder adopting high-speed synthesis filtering algorithm
09/15/1998US5809468 Voice recording and reproducing apparatus having function for initializing contents of adaptive code book
09/15/1998US5809464 Apparatus for recording speech for subsequent text generation
09/15/1998US5809460 Speech decoder having an interpolation circuit for updating background noise
09/15/1998US5809459 Method and apparatus for speech excitation waveform coding using multiple error waveforms
09/15/1998US5809456 Voiced speech coding and decoding using phase-adapted single excitation
09/15/1998US5808569 Transmission system implementing different coding principles
09/15/1998CA2116908C Speech decoding in a zero ber environment
09/15/1998CA2110090C Voice encoder
09/11/1998WO1998039768A1 A high resolution post processing method for a speech decoder
09/11/1998CA2282693A1 A high resolution post processing method for a speech decoder
09/09/1998EP0863500A2 Variable rate speech coding method and decoding method
09/09/1998CN1192817A Speech coder
09/09/1998CN1192563A Frequency variable sound coding method and method for decoding same
09/08/1998US5806038 MBE synthesizer utilizing a nonlinear voicing processor for very low bit rate voice messaging
09/08/1998US5806037 Voice synthesis system utilizing a transfer function
09/08/1998US5806027 Variable framerate parameter encoding
09/08/1998US5806026 Degrouping method for an MPEG 1 audio decoder
09/08/1998US5806024 Coding of a speech or music signal with quantization of harmonics components specifically and then residue components
09/08/1998US5806023 Communication receiver
09/08/1998US5805770 Signal encoding apparatus, signal decoding apparatus, recording medium, and signal encoding method
09/08/1998US5805488 Method and structure for degrouping MPEG audio codes
09/03/1998WO1998038631A1 Apparatus and method for rate determination in a communication system
09/03/1998WO1998027504A3 Method and apparatus for embedding auxiliary data in a primary data signal
09/02/1998EP0759201A4 Audio analysis/synthesis system
09/02/1998EP0680654B1 Text-to-speech system using vector quantization based speech encoding/decoding
09/02/1998EP0591441B1 An improved multiband programmable compression system
09/02/1998CN1192309A Assessment of signal quality
09/01/1998US5802487 Encoding and decoding apparatus of LSP (line spectrum pair) parameters
09/01/1998US5802358 Digital audio data phase shifting apparatus
09/01/1998US5802211 Method and apparatus for transmitting and utilizing analog encoded information
09/01/1998US5802109 Speech encoding communication system
09/01/1998CA2126928C Ringdown and ringback signalling for a computer-based multifunction personal communications system
08/1998
08/27/1998WO1998037641A1 Cross-term compensation power adjustment of embedded auxiliary data in a primary data signal
08/27/1998WO1998037636A1 Voice encoding method
08/27/1998WO1998037544A1 Method and devices for coding discrete signals or for decoding coded discrete signals
08/27/1998WO1998025364A3 Multi-station audio distribution apparatus
08/27/1998CA2282278A1 Voice encoding method
08/26/1998CN1191648A Communication package with apparatus and method for storing and retrieving permanent message
08/26/1998CA2230156A1 Information encoding method and apparatus, information decoding method and apparatus and information recording medium
08/25/1998US5799272 Switched multiple sequence excitation model for low bit rate speech compression
08/25/1998US5799271 Method for reducing pitch search time for vocoder
08/25/1998US5799270 Speech coding system which uses MPEG/audio layer III encoding algorithm
08/25/1998US5799133 Training process
08/25/1998US5799131 Speech coding and decoding system
08/25/1998CA2105269C Time-frequency interpolation with application to low rate speech coding
08/25/1998CA2103835C Digital radio telephone
08/20/1998WO1998036577A1 Predictive coding method and decoding method for dynamic image
08/19/1998EP0859495A2 High speed multimedia data network
08/19/1998EP0859354A2 LSP prediction coding method and apparatus
08/19/1998EP0859353A2 Signal processing method and system utilizing logical speech boundaries
08/19/1998EP0858653A2 Method and arrangement for adding a new speech encoding method to an existing telecommunication system
08/18/1998US5797121 Method and apparatus for implementing vector quantization of speech parameters
08/18/1998US5797120 Method for generating band-variable noise for a speech production model
08/18/1998US5797119 Comb filter speech coding with preselected excitation code vectors
08/18/1998US5797118 Encoding/decoding system
08/18/1998US5796772 Multi-band, multi-mode spread-spectrum communication system
08/18/1998CA2113928C Voice coder system
08/13/1998WO1998035448A2 Communication network for transmitting speech signals
08/13/1998WO1998035447A2 Audio coding method and apparatus
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