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)
06/2011
06/29/2011CN1975861B Vocoder fundamental tone cycle parameter channel error code resisting method
06/29/2011CN1957640B Scheme for generating a parametric representation for low-bit rate applications
06/29/2011CN102113314A A method and an apparatus for processing an audio signal
06/29/2011CN102113051A Low bitrate audio encoding/decoding scheme having cascaded switches
06/29/2011CN102113050A Audio signal transient detection
06/29/2011CN102113049A Signal reception device and signal transmission system
06/29/2011CN102110441A Method for generating sound masking signal based on time reversal
06/29/2011CN102110440A System, method, and apparatus for gain factor attenuation
06/29/2011CN102110439A Spectrum noise detection method
06/29/2011CN102110438A Method and system for authenticating identity based on voice
06/29/2011CN101111887B Scalable encoding device and scalable encoding method
06/29/2011CN101055717B Artificial cochlea implementation method using the ATF coding technology and ATF artificial cochlea
06/29/2011CN101025918B Voice/music dual-mode coding-decoding seamless switching method
06/28/2011US7970955 Recording/reproducing apparatus
06/28/2011US7970648 Advertising campaign and business listing management for a location-based services system
06/28/2011US7970618 Content distribution server for distributing content frame for reproducing music and terminal
06/28/2011US7970607 Method and system for low bit rate voice encoding and decoding applicable for any reduced bandwidth requirements including wireless
06/28/2011US7970606 Interoperable vocoder
06/28/2011US7970605 Method, apparatus, program and recording medium for long-term prediction coding and long-term prediction decoding
06/28/2011US7970604 System and method for switching between a first filter and a second filter for a received audio signal
06/28/2011US7970603 Method and apparatus for managing speech decoders in a communication device
06/28/2011US7970602 Data reproduction device
06/28/2011US7970167 Deriving identifying data from video and audio
06/28/2011US7969902 Tandem-free vocoder operations between non-compatible communication systems
06/28/2011CA2377597C Speech decoder and code error compensation method
06/23/2011WO2011074757A1 System and method for synchronisation in audible-frequency-range acoustic communication transmissions, and a device used therewith
06/23/2011WO2011074233A1 Vector quantization device, voice coding device, vector quantization method, and voice coding method
06/23/2011WO2011073600A1 Parametric stereo encoding/decoding having downmix optimisation
06/23/2011WO2011073210A1 An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
06/23/2011WO2011073201A2 Sbr bitstream parameter downmix
06/23/2011WO2011072729A1 Multi-channel audio processing
06/23/2011US20110153337 Encoding apparatus and method and decoding apparatus and method of audio/voice signal processing apparatus
06/23/2011US20110153336 Multi-mode scheme for improved coding of audio
06/23/2011US20110153335 Method and apparatus for processing audio signals
06/23/2011US20110153334 Method for extracting probability model value from probability model table and method and apparatus for decoding symbol value by using the same
06/23/2011US20110153333 Forward Time-Domain Aliasing Cancellation with Application in Weighted or Original Signal Domain
06/23/2011US20110153319 Method and Apparatus to Prepare Listener-Interest-Filtered Works
06/23/2011US20110153316 Acoustic Perceptual Analysis and Synthesis System
06/23/2011US20110153315 Audio and speech processing with optimal bit-allocation for constant bit rate applications
06/23/2011US20110153314 Method for dynamically adjusting the spectral content of an audio signal
06/23/2011US20110153313 Method And Apparatus For The Detection Of Impulsive Noise In Transmitted Speech Signals For Use In Speech Quality Assessment
06/23/2011US20110150244 Audio Signal Amplifier for Karaoke Player
06/23/2011US20110150227 Signal processing method and apparatus
06/23/2011CA2784862A1 An apparatus and a method for converting a first parametric spatial audio signal into a second parametric spatial audio signal
06/23/2011CA2779388A1 Sbr bitstream parameter downmix
06/22/2011EP2337224A2 Filter unit and method for generating subband filter impulse responses
06/22/2011EP2337029A1 Multi-channel compatible stereo recording
06/22/2011EP2337028A1 Multi-channel compatible stereo recording
06/22/2011EP2335242A2 Audio decoder, audio encoder, method for decoding an audio signal, method for encoding an audio signal, computer program and audio signal
06/22/2011EP2240928B1 Device and method for calculating a fingerprint of an audio signal, device and method for synchronizing and device and method for characterizing a test audio signal
06/22/2011CN1985304B System and method for enhanced artificial bandwidth expansion
06/22/2011CN102105930A Audio encoder and decoder for encoding frames of sampled audio signals
06/22/2011CN102104776A Network television platform moving pictures experts group (MPEG) audio multi-phase synthesis filtering method
06/22/2011CN102104448A Method and device for detecting code rate of speech frame
06/22/2011CN102103860A Scalable voice encoding apparatus, scalable voice decoding apparatus, scalable voice encoding method, scalable voice decoding method
06/22/2011CN102103859A Methods and devices for coding and decoding digital audio signals
06/22/2011CN101770775B Signal processing method and device
06/22/2011CN101694773B Self-adaptive window switching method based on TDA domain
06/22/2011CN101361116B Method and apparatus for processing a media signal
06/22/2011CN101303855B Method and device for generating comfortable noise parameter
06/22/2011CN101253556B Energy shaping device and energy shaping method
06/22/2011CN101233570B Method for generating encoded audio signal and method for processing audio signal
06/22/2011CN101217038B An encoding method of audio data SBC algorithm and Bluetooth stereo subsystem
06/22/2011CN101202593B Method and system for processing multi-rate audio from a plurality of audio processing sources
06/22/2011CN101071569B Advanced processing based on a complex-exponential-modulated filterbank and adaptive time signalling methods
06/22/2011CN101059957B An audio coding selective cryptographic method
06/22/2011CN101031959B Multi-channel hierarchical audio coding with compact side-information
06/21/2011US7966191 Method and apparatus for generating a number of output audio channels
06/21/2011US7966190 Apparatus and method for processing an audio signal using linear prediction
06/21/2011US7966176 System and method for independently recognizing and selecting actions and objects in a speech recognition system
06/21/2011US7966175 Fast lattice vector quantization
06/21/2011US7965849 Multichannel spectral mapping audio apparatus and method
06/21/2011CA2513842C Apparatus and method for speech coding
06/21/2011CA2344259C Audio coder utilising repeated transmission of packet portion
06/16/2011WO2011071610A1 Decoding of multichannel aufio encoded bit streams using adaptive hybrid transformation
06/16/2011WO2011071335A2 Method and apparatus for encoding a speech signal
06/16/2011WO2011071324A2 Method for encoding information object and encoder using the same
06/16/2011WO2011071322A2 Device and method for acoustic communication
06/16/2011WO2011070971A1 Control device, method, and program
06/16/2011WO2011070035A1 Selective filtering for digital transmission when analogue speech has to be recreated
06/16/2011WO2011070033A1 Encoding and decoding speech signals
06/16/2011WO2011069293A1 Method, apparatus and system for speech coding and decoding
06/16/2011WO2011069205A1 Improved matrix decoder for surround sound
06/16/2011US20110145310 Method for updating an encoder by filter interpolation
06/16/2011US20110145004 Bitrate constrained variable bitrate audio encoding
06/16/2011US20110145003 Simultaneous Time-Domain and Frequency-Domain Noise Shaping for TDAC Transforms
06/16/2011US20110144985 Method for Transporting Low-Bit Rate Information
06/16/2011US20110144980 System and method for updating information in electronic calendars
06/16/2011US20110144979 Device and method for acoustic communication
06/16/2011US20110142126 Low bit rate codec
06/16/2011CA2779453A1 Decoding of multichannel audio encoded bit streams using adaptive hybrid transformation
06/15/2011EP2333960A1 System, medium and method of encoding/ decoding multi-channel audio signals
06/15/2011EP2332140A1 Transcoding of audio metadata
06/15/2011EP1859441B1 Low-complexity code excited linear prediction encoding
06/15/2011EP1074125B1 Alternating speech and data transmission in digital communications systems
06/15/2011CN201868098U Digital audio frequency coder
06/15/2011CN201868097U 数字音频解码器 Digital audio decoder
06/15/2011CN1985303B Apparatus and method for generating a multi-channel output signal
06/15/2011CN1957399B Sound/audio decoding device and sound/audio decoding method
06/15/2011CN1937032B Method for cutting speech-sound data sequence
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