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)
12/2000
12/07/2000WO2000074039A1 Audio signal transmission system
12/07/2000WO2000074038A1 Reduction of quantization-induced block-discontinuities in an audio coder
12/07/2000WO2000074037A2 Noise coding in a variable rate vocoder
12/07/2000WO2000074036A1 Device for encoding/decoding voice and for voiceless encoding, decoding method, and recorded medium on which program is recorded
12/07/2000WO2000074035A1 Method and arrangement for speech coding, using phonetic decoding and the transmission of speech characteristics
12/07/2000WO2000073936A1 Phrase-based dialogue modeling with particular application to creating recognition grammars for voice-controlled user interfaces
12/07/2000WO2000045379A3 Enhancing perceptual performance of sbr and related hfr coding methods by adaptive noise-floor addition and noise substitution limiting
12/07/2000CA2485547A1 Device, method, and program for encoding/decoding of speech with function of encoding silent period
12/06/2000EP1058446A2 Key segment spotting in voice messages
12/06/2000EP1058237A2 Method and system for avoiding saturation of a quantizer during vbd communication
12/06/2000EP1057312A1 Cellular phone with expansion memory for audio and video storage
12/06/2000EP1057261A2 Apparatus and method for the clocking of digital and analog circuits on a common substrate to reduce noise
12/06/2000EP1057173A1 Adaptive bit allocation for audio encoder
12/06/2000EP1057172A1 Apparatus and method for hybrid excited linear prediction speech encoding
12/06/2000EP1057171A1 Audio recorder with retroactive storage
12/06/2000EP0496829B1 Lpc based speech synthesis with adaptive pitch prefilter
12/05/2000US6157907 Interpolation in a speech decoder of a transmission system on the basis of transformed received prediction parameters
12/05/2000US6157678 Probabilistic trellis/coded modulation with PCM-derived constellations
12/05/2000US6157324 Analog to digital voice transmitter
12/05/2000CA2194199C Encoding system and decoding system for audio signals
12/03/2000CA2310176A1 Key segment spotting in voice messages
11/2000
11/30/2000WO2000072549A2 Method and apparatus for telecommunications using internet protocol
11/30/2000WO2000072309A1 Decoding of information in audio signals
11/30/2000WO2000072307A1 Speech-processing system
11/29/2000EP1056259A1 Method and apparatus for telecommunications using internet protocol
11/29/2000EP1056092A1 A semiconductor memory card, playback apparatus, recording apparatus, playback method, recording method, and computer-readable recording medium
11/29/2000EP1055225A2 A decoding method, speech coding processing unit and a network element
11/29/2000CN1275234A Frame-based audio coding with additional filterbank to attenuate spectral splatter at frame boundaries
11/29/2000CN1275228A Multi-mode speech encoder and decoder
11/29/2000CN1274923A Method and device for receiving and sending audio data stream by digital interface
11/28/2000US6154572 Table based compression with embedded coding
11/28/2000US6154484 Method and apparatus for embedding auxiliary data in a primary data signal using frequency and time domain processing
11/28/2000US6154453 Method of selecting vocoder in code division multiple access mobile communication system
11/25/2000CA2308821A1 Playing audio of one kind in response to user action while playing audio of another kind
11/23/2000WO2000070604A1 Method and system for measurement of speech distortion from samples of telephonic voice signals
11/23/2000WO2000033037A3 System and method for characterizing, synthesizing, and/or canceling out acoustic signals from inanimate sound sources
11/23/2000DE19921504A1 Verfahren und Schaltungsanordnung zur Ermittlung einer Qualitätsinformation über die Übertragungsqualität eines Sprachsignals in einem digitalen Übertragungssystem Method and circuit arrangement for determining a quality information on the transmission quality of a speech signal in a digital transmission system
11/23/2000CA2374320A1 Method and system for measurement of speech distortion from samples of telephonic voice signals
11/22/2000EP1054513A2 Method and apparatus for transceiving an audio data stream through a digital interface
11/22/2000EP1054400A2 Signal processing method and apparatus, and information serving medium
11/22/2000CN1274456A Vocoder
11/22/2000CN1274146A Sound synthetizer and method, telephone device and program service medium
11/21/2000US6151442 Signal compressing apparatus
11/16/2000WO2000069100A1 In-band on-channel system and method for bit-rate reduction of the digital signal by utilising properties of the analog signal
11/16/2000WO2000068935A1 Multipulse interpolative coding of transition speech frames
11/16/2000WO2000068934A1 Method and device for error concealment in an encoded audio-signal and method and device for decoding an encoded audio signal
11/16/2000WO2000048350A3 Method and receiver for receiving a broadcast signal having encoded sound transmission and/or encoded data transmission, whereby the authentication signal is received via a different transmission path
11/16/2000WO2000045378A3 Efficient spectral envelope coding using variable time/frequency resolution and time/frequency switching
11/15/2000EP1052623A2 High efficiency encoding method
11/15/2000EP1052622A2 Selection of a synthesis filter for CELP type wideband audio coding
11/15/2000EP1052621A2 Method and circuit arrangement for quality information determination to detect errors in the transmission of a speech signal
11/15/2000EP1052620A1 Sound encoding method and sound decoding method, and sound encoding device and sound decoding device
11/15/2000EP1052612A1 Watermark applied to one-dimensional data
11/15/2000EP1051703A1 Method for decoding an audio signal with transmission error correction
11/15/2000EP1051701A1 Method for voice data transmission
11/15/2000EP0979506A4 Apparatus and method for rate determination in a communication system
11/15/2000CN1273663A Transmission system with improved speech encoder
11/15/2000CN1273662A Vocoder-based voice recognizer
11/14/2000US6148288 Scalable audio coding/decoding method and apparatus
11/14/2000US6148283 Method and apparatus using multi-path multi-stage vector quantizer
11/14/2000US6148282 Multimodal code-excited linear prediction (CELP) coder and method using peakiness measure
11/14/2000US6148281 Detecting and replacing bad speech subframes wherein the output level of the replaced subframe is reduced to a predetermined non-zero level
11/09/2000WO2000067417A1 Robust coding for the transmission of audio or video signals
11/09/2000WO2000067261A1 Multi-format personal digital audio player
11/09/2000WO2000067259A1 Universal player for compressed audio
11/09/2000WO2000067258A1 Method and apparatus for processing digitally encoded audio data
11/09/2000WO2000038179A3 Variable rate speech coding
11/08/2000EP1050989A2 MAP rate detection for variable rate CODECs
11/08/2000EP1050040A1 A decoding method and system comprising an adaptive postfilter
11/08/2000EP0824750B1 A gain quantization method in analysis-by-synthesis linear predictive speech coding
11/08/2000CN1272996A Cellular telephone with voice dialing function
11/08/2000CN1272939A Speech coding apparatus and speech decoding apparatus
11/08/2000CN1272938A Scalable mixing for speech streaming
11/08/2000CN1272728A Method for preventing quantizer from saturating during data communication of voice band and its system
11/07/2000US6145060 Data storage device with only internal addressing
11/07/2000US6144937 Noise suppression of speech by signal processing including applying a transform to time domain input sequences of digital signals representing audio information
11/07/2000US6144936 Method for substituting bad speech frames in a digital communication system
11/07/2000US6144935 Tunable perceptual weighting filter for tandem coders
11/07/2000CA2016461C Method for improving the speech quality in multi-pulse excited linear predictive coding
11/02/2000WO2000065571A1 Universal audio communications and control system and method
11/02/2000EP1049320A1 Computer linking methods employing audio or visual data objects
11/02/2000EP1049312A2 Multi-functional mobile communication terminal
11/02/2000EP1049259A1 Vibration wave encoding method and method
11/02/2000EP1049074A1 Hierarchical multi-rate coding of a signal containing information
11/02/2000EP1049073A2 Fixed codebook search for celp speech coding
11/02/2000EP1048024A1 Method for speech coding under background noise conditions
11/01/2000CN1272201A Transmission system using improved signal encoder and decoder
11/01/2000CN1272200A Sound decorder and sound decording method
11/01/2000CN1272199A Sound deorder and sound decording method
11/01/2000CN1272022A Multifunctional mobile communication terminal
11/01/2000CN1272019A Retrieval of deleted speech sound information in speech sound information transmission system
11/01/2000CN1271938A Numerical data broadcastor and data processing method and data storage medium
11/01/2000CN1271936A Transmission equipment and method of audio data/audio related information
11/01/2000CN1271925A Shaped fixed code book searching used for code exciting linear predicting speech encode
10/2000
10/31/2000US6141640 Multistage positive product vector quantization for line spectral frequencies in low rate speech coding
10/31/2000US6141639 Method and apparatus for coding of signals containing speech and background noise
10/31/2000US6141638 Method and apparatus for coding an information signal
10/31/2000US6141637 Speech signal encoding and decoding system, speech encoding apparatus, speech decoding apparatus, speech encoding and decoding method, and storage medium storing a program for carrying out the method
10/31/2000US6141597 Audio processor
10/28/2000CA2305972A1 Shaped fixed codebook search for celp speech coding
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