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)
12/2004
12/07/2004CA2218217C Reduced complexity signal transmission system
12/02/2004WO2004105253A1 Data processing device, encoding device, encoding method, decoding device, decoding method, and program
12/02/2004US20040243417 Natural language processing for a location-based services system
12/02/2004US20040243404 Method and apparatus for improving voice quality of encoded speech signals in a network
12/02/2004US20040243402 Speech bandwidth extension apparatus and speech bandwidth extension method
12/02/2004US20040243399 Computer system and method of controlling the same
12/02/2004US20040243398 Voice recording and reproducing apparatus and additional voice information recording method
12/02/2004US20040243397 Device and process for use in encoding audio data
12/02/2004US20040243393 Semantic object synchronous understanding implemented with speech application language tags
12/02/2004US20040240862 Method for processing a digital video signal
12/02/2004US20040240575 Method and apparatus to enhance audio quality for digitized voice transmitted over a channel employing frequency diversity
12/02/2004US20040240436 Method and apparatus for voice latency reduction in a voice-over-data wireless communication system
12/02/2004US20040240418 Electronic apparatus with communication device
12/02/2004US20040239538 Digital signal processing device and digital signal processing method
12/02/2004CA2526261A1 Method and apparatus for extending band of audio signal using higher harmonic wave generator
12/01/2004EP1482481A1 Semantic object synchronous understanding implemented with speech application language tags
12/01/2004EP1114415B1 Linear predictive analysis-by-synthesis encoding method and encoder
12/01/2004CN1552072A Recording apparatus and method, and communication device and method
12/01/2004CN1552060A Improving transient performance of low bit rate audio coding systems by reducing pre-noise
12/01/2004CN1552059A Method and apparatus for speech reconstruction in a distributed speech recognition system
12/01/2004CN1551588A Apparatus and method for processing audio signal and computer readable recording medium storing computer program for the method
12/01/2004CN1551516A Apparatus and method for controlling noise in mobile communication terminal
12/01/2004CN1551191A Transmission of a digital information signal having a specific first sampling frequency
12/01/2004CN1551105A Signal processing apparatus
12/01/2004CN1178438C Method and apparatus supporting TDD/TTY modulation over vocoded channels
12/01/2004CN1178204C Acoustic vector genrating device, and acoustic encoding and decoding device
12/01/2004CN1178125C Reproducing device and reproducing method
11/2004
11/30/2004US6826527 Concealment of frame erasures and method
11/30/2004US6826526 Audio signal coding method, decoding method, audio signal coding apparatus, and decoding apparatus where first vector quantization is performed on a signal and second vector quantization is performed on an error component resulting from the first vector quantization
11/29/2004CA2467220A1 Semantic object synchronous understanding implemented with speech application language tags
11/25/2004WO2004102969A1 Device and method for embedding a binary piece of user data in a carrier signal
11/25/2004WO2004102532A1 Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
11/25/2004WO2004102531A1 Apparatus and method for concealing erased periodic signal data
11/25/2004WO2004102528A1 Audio electronic watermarking device
11/25/2004WO2004102464A2 Reversible watermarking and related applications
11/25/2004WO2004064039A3 Method and apparatus for artificial bandwidth expansion in speech processing
11/25/2004WO2003104924A3 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound
11/25/2004US20040236583 Audio signal processing apparatus
11/25/2004US20040236572 Device and method for processing and audio signal
11/25/2004US20040236568 Extension of m3u file format to support user interface and navigation tasks in a digital audio player
11/25/2004US20040233923 Method and system for transmitting data from a first data network into a second data network
11/25/2004CA2521601A1 Improved audio coding systems and methods using spectral component coupling and spectral component regeneration
11/24/2004EP1480201A2 Reduction of quantization-induced block-discontinuities in an audio coder
11/24/2004EP1480101A2 Content access control
11/24/2004EP1479071A2 Parametric audio coding
11/24/2004EP1479067A1 Text-to-speech native coding in a communication system
11/24/2004EP1214800B1 Personal information system, especially a personal guide system, for wirelessly transmitting voice information
11/24/2004EP0976126B1 Method and apparatus in coding digital information
11/24/2004CN1550013A Method and apparatus for elapsed playback timekeeping of variable bit-rate digitally encoded audio data files
11/24/2004CN1550001A Auditory-articulatory analysis for speech quality assessment
11/24/2004CN1550000A Compensation for utterance dependent articulation for speech quality assessment
11/24/2004CN1549999A Run time synthesizer adaptation to improve intelligibility of synthesized speech
11/23/2004US6823303 Speech encoder using voice activity detection in coding noise
11/23/2004US6823302 Real-time quality analyzer for voice and audio signals
11/18/2004WO2004100127A1 Method and apparatus for transferring data over a voice channel
11/18/2004US20040230467 Method for passive mining of usage information in a location-based services system
11/18/2004US20040230429 Block-constrained TCQ method, and method and apparatus for quantizing LSF parameter employing the same in speech coding system
11/18/2004US20040230428 Method and apparatus for blind source separation using two sensors
11/18/2004US20040230427 Audio signal compression
11/18/2004US20040230426 Signal processing apparatus
11/18/2004US20040230425 Rate control for coding audio frames
11/18/2004US20040230423 Multiple channel mode decisions and encoding
11/18/2004US20040230419 DRAM access for MDCT/IDMCT implementation
11/17/2004EP1407446B1 Method and device for characterising a signal and for producing an indexed signal
11/17/2004EP1397799B1 Method and device for processing time-discrete audio sampled values
11/17/2004EP1293961B1 A signal processing method to analyse transients of a speech signal
11/17/2004EP1159740B1 A method and apparatus for pre-processing speech signals prior to coding by transform-based speech coders
11/17/2004EP1121764A4 Method and apparatus for digital signal compression without decoding
11/17/2004EP1046154B1 A vocoder-based voice recognizer
11/17/2004EP0821849B1 Reduced complexity encoder for signal transmission system
11/17/2004CN1547803A Audio processing device
11/17/2004CN1547734A Acoustic signal encoding method and encoding device, acoustic signal decoding method and decoding device, program and recording medium image display device
11/17/2004CN1547724A Lossless intraframe encoding using GOLOMB-RICE
11/17/2004CN1547193A Invariant codebook fast search algorithm for speech coding
11/17/2004CN1547192A An audio synthesis method
11/17/2004CN1176550C Method and device for changing output delay of voice data code or video data code
11/16/2004US6820052 Low bit-rate coding of unvoiced segments of speech
11/16/2004US6819275 Audio signal compression
11/16/2004CA2363045C Intensity-stereo encoding in a transmission system
11/11/2004WO2004098105A1 Support of a multichannel audio extension
11/11/2004WO2004098069A1 Methods and apparatus to perform spread spectrum encoding and decoding for broadcast applications
11/11/2004WO2004098066A1 Floating point type digital signal reversible encoding method, decoding method, devices for them, and programs for them
11/11/2004WO2004097798A1 Speech decoder, speech decoding method, program, recording medium
11/11/2004WO2004097797A1 Method and device for gain quantization in variable bit rate wideband speech coding
11/11/2004WO2004097796A1 Audio encoding device, audio decoding device, audio encoding method, and audio decoding method
11/11/2004WO2004097795A2 Adaptive voice enhancement for low bit rate audio coding
11/11/2004WO2004097794A2 Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
11/11/2004US20040225506 Techniques for quantization of spectral data in transcoding
11/11/2004US20040225505 Audio coding systems and methods using spectral component coupling and spectral component regeneration
11/11/2004US20040225500 Data communication through acoustic channels and compression
11/11/2004US20040225495 Encoding apparatus, method and program
11/11/2004US20040225492 Method and apparatus for the detection of previous packet loss in non-packetized speech
11/11/2004DE19609170B4 Verfahren zur Durchführung einer "Tiefe-Zuerst"-Suche in einem Codebuch zur Codierung eines Geräusch- bzw. Klangsignales, Vorrichtung zur Durchführung dieses Verfahrens sowie zellulares Kommunikationssystem mit einer derartigen Vorrichtung Method of conducting a "depth-first" search in a codebook for encoding a noise or sound signal device for carrying out this process and cellular communication system with such a device
11/10/2004EP1475782A2 Apparatus and method for controlling noise in mobile communication terminal
11/10/2004EP1279166B1 Robust parameters for noisy speech recognition
11/10/2004EP0894409B1 Detection of speech channel back-looping
11/10/2004CN2655380Y Display terminal for speech leaving message prompting system
11/10/2004CN1545697A Audio coding with non-uniform filter bank
11/10/2004CN1545211A System and method for coding data
11/10/2004CN1175579C Encoder