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)
10/2000
10/26/2000WO2000064055A1 Voice encoding device
10/26/2000WO2000063886A1 Using gain-adaptive quantization and non-uniform symbol lengths for audio coding
10/26/2000WO2000063885A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063884A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063883A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063882A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063881A1 Method and apparatus for performing packet loss or frame erasure concealment
10/26/2000WO2000063878A1 Speech coder, speech processor, and speech processing method
10/26/2000WO2000063786A1 Method and system for minimizing pirating on data media
10/26/2000WO2000027135A3 Mobile wireless internet portable radio
10/26/2000DE19914645A1 Verfahren und Vorrichtung zur Codierung/Decodierung Method and apparatus for encoding / decoding
10/25/2000EP1047251A2 Retrieval of deleted voice messages in voice messaging system
10/25/2000EP1047212A2 Apparatus and method for audio data/audio-related information transfer
10/25/2000EP1047198A2 Encoder with optimally selected codebook
10/25/2000EP1047047A2 Audio signal coding and decoding methods and apparatus and recording media with programs therefor
10/25/2000EP1047045A2 Sound synthesizing apparatus and method
10/25/2000EP1046155A1 Signal processing
10/25/2000EP1046154A1 A vocoder-based voice recognizer
10/25/2000EP1046153A1 A system and method for encoding voice while suppressing acoustic background noise
10/24/2000US6138101 Method of encoding digital data
10/24/2000US6138093 High resolution post processing method for a speech decoder
10/24/2000US6138092 CELP speech synthesizer with epoch-adaptive harmonic generator for pitch harmonics below voicing cutoff frequency
10/24/2000US6138091 Method and arrangement for simultaneous recording of incoming and outgoing voice signals with compression of silence periods
10/24/2000US6138090 Encoded-sound-code decoding methods and sound-data coding/decoding systems
10/24/2000US6138089 Apparatus system and method for speech compression and decompression
10/24/2000US6138020 Quality-based handover
10/24/2000CA2146050C Method and apparatus for compressing a sequence of information-bearing frames having at least two media components
10/19/2000WO2000062434A1 Quantization in perceptual audio coders with compensation for synthesis filter noise spreading
10/19/2000WO2000038176A3 Method and arrangement for finding an optimal reconstruction point
10/18/2000EP1044549A1 Telephone with means for enhancing the subjective signal impression in the presence of noise
10/18/2000EP1044119A1 Vehicle computer system with audio entertainment system
10/18/2000CN1270695A Apparatus and method for simplified analog signal record and playback
10/17/2000US6134523 Coding bit rate converting method and apparatus for coded audio data
10/17/2000US6134522 Signal processing method and arrangement for substitution or erroneous signals in a block-coded audio signals of an audio communication system
10/17/2000US6134521 Method and apparatus for mitigating audio degradation in a communication system
10/17/2000US6134520 Split vector quantization using unequal subvectors
10/17/2000US6134519 Voice encoder for generating natural background noise
10/17/2000US6134518 Digital audio signal coding using a CELP coder and a transform coder
10/17/2000US6133908 Multi-station video/audio distribution apparatus
10/17/2000CA2260222C Coding and decoding of audio signals by using intensity stereo and prediction
10/17/2000CA2260090C Method of coding and decoding stereo audio spectral values
10/12/2000WO2000060901A2 Audio peripheral device comprising usb interface and digital audio mixer
10/12/2000WO2000060747A1 Coding an audio signal
10/12/2000WO2000060746A2 Matrixing for losseless encoding and decoding of multichannels audio signals
10/12/2000WO2000060744A1 Method and device for coding/decoding
10/12/2000WO2000060579A1 A frequency domain interpolative speech codec system
10/12/2000WO2000060578A1 Spectral magnitude modeling and quantization in a frequency domain interpolative speech codec system
10/12/2000WO2000060576A1 Spectral phase modeling of the prototype waveform components for a frequency domain interpolative speech codec system
10/12/2000WO2000060575A1 A voicing measure as an estimate of signal periodicity for a frequency domain interpolative speech codec system
10/12/2000WO2000060489A1 Flash memory card adapter for stereo systems
10/12/2000CA2742649A1 Matrix improvements to lossless encoding and decoding
10/12/2000CA2369094A1 Flash memory card adapter for stereo systems
10/11/2000EP0978172B1 Method for masking defects in a stream of audio data
10/11/2000CN1269661A Delection of partial voice message
10/11/2000CN1269575A Automatic remote image/language transfer monitoring system
10/11/2000CN1269555A Editing apparatus and editing method thereof
10/10/2000US6131084 Dual subframe quantization of spectral magnitudes
10/10/2000US6131083 Method of encoding and decoding speech using modified logarithmic transformation with offset of line spectral frequency
10/05/2000WO2000059148A1 Digital watermarking method and apparatus
10/05/2000WO2000058949A1 Low data transmission rate and intelligible speech communication
10/04/2000EP1041820A2 Video and audio multiplex recording apparatus
10/04/2000EP1041819A1 Playback control, authentication and decoding for datastreams including object streams
10/04/2000EP1041805A2 A watermark-data-hiding apparatus
10/04/2000EP1041721A2 Decoding device for Huffman-encoded data
10/04/2000EP1041541A1 Celp voice encoder
10/04/2000EP1040673A1 Data transmission over a coded voice channel
10/04/2000EP1040444A1 Apparatus and method for recovery of quantization codes in a lossy transmission environment
10/04/2000EP0852375B1 Speech coder methods and systems
10/04/2000CN1269070A Transmitting device for transmitting a digital information signal alternately in encoded form and non-encoded form
10/04/2000CN1268850A Reproducing device and reproducing method
10/04/2000CN1268849A Reproducing device and reproducing method
10/04/2000CN1268843A Device and method of of information processing
10/04/2000CN1268810A 解码设备 Decoding equipment
10/03/2000US6128597 Audio decoder with a reconfigurable downmixing/windowing pipeline and method therefor
10/03/2000US6128593 System and method for implementing a refined psycho-acoustic modeler
10/03/2000US6128592 Signal processing apparatus and method, and transmission medium and recording medium therefor
10/03/2000US6128591 Speech encoding system with increased frequency of determination of analysis coefficients in vicinity of transitions between voiced and unvoiced speech segments
10/03/2000CA2177226C Method of and apparatus for coding speech signal
09/2000
09/28/2000WO2000057401A1 Computation and quantization of voiced excitation pulse shapes in linear predictive coding of speech
09/28/2000WO2000057400A1 Method, devices and system for generating background noise in a telecommunications system
09/28/2000WO2000057399A1 Additional information embedding method and its device, and additional information decoding method and its decoding device
09/28/2000WO2000022611A9 Method and apparatus to prepare listener-interest-filtered works
09/27/2000EP1038358A1 Audio codec with agc controlled by a vocoder
09/27/2000CN1267995A Method and equipment adapted for audio-frequency information transmission of entertainment program chaining and notice
09/26/2000US6125265 Portable telephone device
09/21/2000WO2000056077A1 Media coding for loss recovery with remotely predicted data units
09/21/2000WO2000055853A1 Portable data storage/audio reproduction apparatus
09/21/2000WO2000055845A1 An adaptive post-filtering technique based on the modified yule-walker filter
09/21/2000WO2000055844A1 Quantization of variable-dimension speech spectral amplitudes using spectral interpolation between previous and subsequent frames
09/20/2000EP1037419A2 Program links and bulletins for the delivery of digital audio
09/20/2000EP1037390A1 Method for coding, decoding and transcoding an audio signal
09/20/2000EP1037197A2 Voicing analysis in a linear predictive speech coder
09/20/2000EP1037196A1 Method for coding, decoding and transcoding an audio signal
09/20/2000CN1267177A Digital portable mobile telephone set and method for voice data input/output and storage/regeneration
09/19/2000US6122618 Scalable audio coding/decoding method and apparatus
09/19/2000US6122611 Adding noise during LPC coded voice activity periods to improve the quality of coded speech coexisting with background noise
09/19/2000US6122608 Method for switched-predictive quantization
09/19/2000US6122607 Method and arrangement for reconstruction of a received speech signal
09/19/2000US6122403 Computer system linked by using information in data objects
09/19/2000US6122392 Signal processing to hide plural-bit information in image, video, and audio data
1 ... 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 ... 320