| 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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| 03/30/2000 | WO2000017858A1 Robust fast search for two-dimensional gain vector quantizer |
| 03/30/2000 | WO1999043087A3 Apparatus and method for the clocking of digital and analog circuits on a common substrate to reduce noise |
| 03/30/2000 | CA2344648A1 Tandem audio compression |
| 03/29/2000 | EP0989544A1 Device and method for filtering a speech signal, receiver and telephone communications system |
| 03/29/2000 | EP0988709A2 Method and apparatus for embedding auxiliary data in a primary data signal |
| 03/29/2000 | CN1249053A Improved audio reproduction arrangement and telephone terminal |
| 03/29/2000 | CN1249035A Voice encoder, voice decoder, voice encoder/decoder, voice encoding method, voice decoding method and voice encoding/decoding method |
| 03/29/2000 | CN1248824A Audio signal coding device and method, decoding device and method |
| 03/28/2000 | US6044345 Method and system for coding human speech for subsequent reproduction thereof |
| 03/28/2000 | US6044342 Speech spurt detecting apparatus and method with threshold adapted by noise and speech statistics |
| 03/28/2000 | US6044339 Reduced real-time processing in stochastic celp encoding |
| 03/28/2000 | US6044338 Signal processing method and apparatus and signal recording medium |
| 03/23/2000 | WO2000016501A1 Method and apparatus for coding an information signal |
| 03/23/2000 | WO2000016485A1 Speech coder for a communications system and method for operation thereof |
| 03/23/2000 | WO2000016315A2 Linear predictive analysis-by-synthesis encoding method and encoder |
| 03/23/2000 | WO2000016314A2 Celp encoding/decoding method and apparatus |
| 03/23/2000 | WO2000016313A1 Speech coding with background noise reproduction |
| 03/23/2000 | WO2000016309A1 Method and apparatus for coding an information signal using delay contour adjustment |
| 03/22/2000 | EP0987855A2 Method and apparatus for encoding audio with auxiliary digital data |
| 03/22/2000 | EP0987827A2 Audio signal encoding method without transmission of bit allocation information |
| 03/22/2000 | EP0987680A1 Audio signal processing |
| 03/22/2000 | EP0799531B1 Method and apparatus for applying waveform prediction to subbands of a perceptual coding system |
| 03/22/2000 | CN1248339A Apparatus and method for rate determination in commuincation system |
| 03/21/2000 | US6041298 Method for synthesizing a frame of a speech signal with a computed stochastic excitation part |
| 03/21/2000 | US6041297 Vocoder for coding speech by using a correlation between spectral magnitudes and candidate excitations |
| 03/21/2000 | US6041296 Method of deriving characteristics values from a speech signal |
| 03/21/2000 | US6041295 Comparing CODEC input/output to adjust psycho-acoustic parameters |
| 03/21/2000 | CA2176982C Data protocol for a music chip |
| 03/21/2000 | CA2155583C Speech coder using a non-uniform pulse type sparse excitation codebook |
| 03/16/2000 | WO2000014886A1 Device and method for entropy encoding of information words and device and method for decoding entropy-encoded information words |
| 03/16/2000 | WO2000014726A1 System and method for efficiently implementing a masking function in a psycho-acoustic modeler |
| 03/16/2000 | WO1999062189A3 System and method for masking quantization noise of audio signals |
| 03/16/2000 | DE19840835A1 Vorrichtung und Verfahren zum Entropiecodieren von Informationswörtern und Vorrichtung und Verfahren zum Decodieren von Entropie-codierten Informationswörtern Apparatus and method for entropy encoding of information words, and apparatus and method for decoding of entropy-encoded information words |
| 03/15/2000 | EP0986047A2 Audio encoding system |
| 03/15/2000 | EP0986046A1 System and method for recording and synthesizing sound and infrastructure for distributing recordings for remote playback |
| 03/15/2000 | EP0592151B1 Time-frequency interpolation with application to low rate speech coding |
| 03/15/2000 | CN1247648A Error correction decoder for vocoding system |
| 03/15/2000 | CN1247620A Method and appts. for controlling use of discontinuous transmission in cellular telephone |
| 03/14/2000 | US6038536 Data compression using bit change statistics |
| 03/14/2000 | US6038530 Communication network for transmitting speech signals |
| 03/14/2000 | US6038529 Transmitting and receiving system compatible with data of both the silence compression and non-silence compression type |
| 03/14/2000 | CA2159571C Vector quantization apparatus |
| 03/14/2000 | CA2156650C Vector quantization with a control circuit for input and predicted vector quantization |
| 03/09/2000 | WO2000013448A2 A method, communication system, mobile station and network element for transmitting background noise information in data transmission in data frames |
| 03/09/2000 | WO2000013174A1 An adaptive criterion for speech coding |
| 03/09/2000 | WO2000013172A1 Signal processing techniques for time-scale and/or pitch modification of audio signals |
| 03/09/2000 | WO1999062253A3 Scalable audio coder and decoder |
| 03/09/2000 | WO1999062052A3 System and method for entropy encoding quantized transform coefficients of a signal |
| 03/09/2000 | WO1999060561A3 Split band linear prediction vocoder |
| 03/09/2000 | DE19840103A1 Method for condensed storage of digitally acquired sound recordings and for decompressing recordings so treated divides all recordings into ranges and signal blocks, causing the ranges to form as large a number as possible of sources. |
| 03/08/2000 | EP0984455A1 Recording and reproducing apparatus |
| 03/08/2000 | EP0984432A2 Pulse position control for an algebraic speech coder |
| 03/08/2000 | EP0983668A2 Speech transmission between terminals in different networks |
| 03/08/2000 | EP0983651A1 Multi-station video/audio distribution apparatus |
| 03/08/2000 | EP0797824B1 Speech processing |
| 03/08/2000 | EP0671032B1 Coding with modulation, error control, weighting, and bit allocation |
| 03/08/2000 | EP0617865B1 Embedded signalling |
| 03/08/2000 | CN1246707A Recording and reproducing device |
| 03/07/2000 | US6035341 Multimedia data analysis in intelligent video information management system |
| 03/07/2000 | US6035270 Trained artificial neural networks using an imperfect vocal tract model for assessment of speech signal quality |
| 03/07/2000 | US6034632 Signal coding method and apparatus |
| 03/07/2000 | US6034315 Signal processing apparatus and method and information recording apparatus |
| 03/02/2000 | WO2000011893A1 Method and apparatus for control of vocoder bypass utilizing inband signaling |
| 03/02/2000 | WO2000011817A2 Method for transmitting information and suitable system therefor |
| 03/02/2000 | WO2000011661A1 Adaptive gain reduction to produce fixed codebook target signal |
| 03/02/2000 | WO2000011660A1 Adaptive tilt compensation for synthesized speech residual |
| 03/02/2000 | WO2000011659A1 Speech encoder using gain normalization that combines open and closed loop gains |
| 03/02/2000 | WO2000011658A1 Speech classification and parameter weighting used in codebook search |
| 03/02/2000 | WO2000011657A1 Completed fixed codebook for speech encoder |
| 03/02/2000 | WO2000011656A1 Comb codebook structure |
| 03/02/2000 | WO2000011655A1 Low complexity random codebook structure |
| 03/02/2000 | WO2000011654A1 Speech encoder adaptively applying pitch preprocessing with continuous warping |
| 03/02/2000 | WO2000011653A1 Speechencoder using continuous warping combined with long term prediction |
| 03/02/2000 | WO2000011652A1 Pitch determination using speech classification and prior pitch estimation |
| 03/02/2000 | WO2000011651A1 Synchronized encoder-decoder frame concealment using speech coding parameters |
| 03/02/2000 | WO2000011650A1 Speech codec employing speech classification for noise compensation |
| 03/02/2000 | WO2000011649A1 Speech encoder using a classifier for smoothing noise coding |
| 03/02/2000 | WO2000011648A1 Speech encoder using voice activity detection in coding noise |
| 03/02/2000 | WO2000011646A1 Multimode speech encoder and decoder |
| 03/02/2000 | WO1999060719A9 Combined analog/digital data transmission system |
| 03/02/2000 | DE19941331A1 Verfahren zum Übertragen von Information zu Hintergrundrauschen bei Datenübertragung mittels Datenrahmen sowie Kommunikationssystem, Mobilstation und Netzwerkelement A method of transmitting information on the background noise during data transmission using data frame and communication system, mobile station and network element |
| 03/01/2000 | EP0982904A2 Method for conveying TTY signals over wireless communication systems |
| 03/01/2000 | EP0982734A1 A solid-state audio recording unit |
| 03/01/2000 | EP0982732A1 Portable MP3 player having various functions |
| 03/01/2000 | EP0982713A2 Voice converter with extraction and modification of attribute data |
| 03/01/2000 | EP0981816A1 Audio coding systems and methods |
| 03/01/2000 | EP0560931B1 Methods for speech quantization and error correction |
| 02/29/2000 | US6032117 Reproduction device outputting combined sequence of user-specific and user independent voice message data |
| 02/29/2000 | US6032114 Method and apparatus for noise reduction by filtering based on a maximum signal-to-noise ratio and an estimated noise level |
| 02/29/2000 | US6032113 N-stage predictive feedback-based compression and decompression of spectra of stochastic data using convergent incomplete autoregressive models |
| 02/29/2000 | US6032112 Voice data processing device |
| 02/29/2000 | US6032081 Dematrixing processor for MPEG-2 multichannel audio decoder |
| 02/29/2000 | US6031915 Voice start recording apparatus |
| 02/28/2000 | CA2277419A1 Method for conveying tty signals over wireless communication systems |
| 02/24/2000 | WO2000010161A1 Waveform coding method |
| 02/24/2000 | CA2340215A1 Waveform coding method |
| 02/23/2000 | EP0981113A2 Digital watermarking and methods for security documents |
| 02/23/2000 | EP0968497A4 Variable length audio coding using a plurality of subband bit allocation patterns |
| 02/22/2000 | US6029136 Band dividing/synthesizing filter with reduced memory requirements |
| 02/22/2000 | US6029134 Method and apparatus for synthesizing speech |