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)
02/2008
02/27/2008CN100371988C Method and apparatus for speech reconstruction within a distributed speech recognition system
02/27/2008CN100371986C Controlling loudness of speech in signals that contain speech and other types of audio material
02/26/2008US7337118 Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components
02/26/2008US7337110 Structured VSELP codebook for low complexity search
02/26/2008US7337109 Multiple step adaptive method for time scaling
02/26/2008US7337108 System and method for providing high-quality stretching and compression of a digital audio signal
02/26/2008US7337107 Perceptual harmonic cepstral coefficients as the front-end for speech recognition
02/26/2008US7337027 Audio signal reproducing apparatus
02/26/2008US7337026 Digital audio volume control
02/22/2008CA2596411A1 Method and system for providing an acoustic signal with extended bandwidth
02/21/2008WO2008022200A2 Re-phasing of decoder states after packet loss
02/21/2008WO2008022184A2 Constrained and controlled decoding after packet loss
02/21/2008WO2008022181A2 Updating of decoder states after packet loss concealment
02/21/2008WO2008022176A2 Packet loss concealment for sub-band predictive coding based on extrapolation of full-band audio waveform
02/21/2008WO2008021247A2 Arbitrary shaping of temporal noise envelope without side-information
02/21/2008WO2008021185A2 A method for quantizing speech and audio through an efficient perceptually relevant search of multiple quantization patterns
02/21/2008WO2008001320A3 Sound frame length adaptation
02/21/2008WO2008001316A3 Decoding sound parameters
02/21/2008US20080046253 Temporal Envelope Shaping for Spatial Audio Coding Using Frequency Domain Wiener Filtering
02/21/2008US20080046252 Time-Warping of Decoded Audio Signal After Packet Loss
02/21/2008US20080044087 Integrating steganographic encoding in multimedia content
02/21/2008US20080043418 Video communication apparatus using VoIP and method of operating the same
02/20/2008EP1889256A2 Predictive encoding of a multi channel signal
02/20/2008EP1676264A4 A method of making a window type decision based on mdct data in audio encoding
02/20/2008EP1634402A4 Circuits and methods for reducing pin count in multiple-mode integrated circuit devices
02/20/2008EP1497935B1 Feature-based audio content identification
02/20/2008EP1386312B1 Improving transient performance of low bit rate audio coding systems by reducing pre-noise
02/20/2008CN101128867A Improved filter smoothing in multi-channel audio encoding and/or decoding
02/20/2008CN101128866A Optimized fidelity and reduced signaling in multi-channel audio encoding
02/20/2008CN101127213A Audio encoding system
02/20/2008CN101127212A Audio encoding
02/20/2008CN101127211A Method for decoding audio frequency signal and system for transmitting audio frequency signal
02/20/2008CN100370517C Audio coding
02/19/2008US7334176 Determination of the presence of additional coded data in a data frame
02/19/2008US7333957 Connected audio and other media objects
02/19/2008US7333934 Pre-processing individual audio items in a media project in order to improve real-time processing of the media project
02/19/2008US7333930 Tonal analysis for perceptual audio coding using a compressed spectral representation
02/19/2008US7333619 Fast wavelet estimation of weak bio-signals using novel algorithms for generating multiple additional data frames
02/19/2008US7333034 Data processing device, encoding device, encoding method, decoding device decoding method, and program
02/14/2008WO2008018464A1 Audio encoding device and audio encoding method
02/14/2008US20080040122 Packet Loss Concealment for a Sub-band Predictive Coder Based on Extrapolation of Excitation Waveform
02/14/2008US20080040121 Sub-band voice codec with multi-stage codebooks and redundant coding
02/14/2008US20080040120 Estimating rate controlling parameters in perceptual audio encoders
02/14/2008US20080040107 Method for quantizing speech and audio through an efficient perceptually relevant search of multiple quantization patterns
02/14/2008US20080040106 Digital Recording and playback system with voice recognition capability for concurrent text generation
02/14/2008US20080040105 Sub-band voice codec with multi-stage codebooks and redundant coding
02/14/2008US20080040104 Speech coding apparatus, speech decoding apparatus, speech coding method, speech decoding method, and computer readable recording medium
02/14/2008US20080040103 Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering
02/14/2008US20080040102 Frequency Compensation for Perceptual Speech Analysis
02/14/2008US20080037824 Video and Audio Steganography and Methods Related Thereto
02/14/2008US20080037151 Audio Reproducing Apparatus, Audio Reproducing Method, and Program
02/13/2008EP1887567A1 Scalable encoding device, and scalable encoding method
02/13/2008EP1887566A1 Speech coding apparatus, speech decoding apparatus, speech coding method, speech decoding method, and computer readable recording medium
02/13/2008EP1887565A1 Method and device for detecting a tattooing identifier in an audio signal
02/13/2008EP1887564A1 Estimating rate controlling parameters in perceptual audio encoders
02/13/2008EP1887563A1 Packet loss concealment for a sub-band predictive coder based on extrapolation of exitation waveform
02/13/2008EP1886306A1 Sub-band voice codec with multi-stage codebooks and redundant coding
02/13/2008EP1886305A2 Method and apparatus for watermarking an audio or video signal with watermark data using a spread spectrum
02/13/2008EP1886229A2 Systems and methods for generating, reading and transferring identifiers
02/13/2008EP1687810B1 Device and method for determining a quantiser step size
02/13/2008CN101124740A Adaptive bit allocation for multi-channel audio encoding
02/13/2008CN101124727A Encoder, decoder, method for encoding/deconding, computer readable media and computer program elements
02/13/2008CN101124626A Combined audio coding minimizing perceptual distortion
02/13/2008CN101124625A Method and device for carrying out optimal coding between two long-term prediction models
02/13/2008CN101124624A Method of embedding a digital watermark in a useful signal
02/13/2008CN101123091A Speech coding apparatus, speech decoding apparatus, speech coding method, and speech decoding method
02/13/2008CN100369112C Variable rate speech coding
02/13/2008CN100369111C Voice intensifier
02/13/2008CN100369110C Method and device for code conversion between audio encoding/decoding methods and storage medium thereof
02/13/2008CN100369109C Audio coding system using spectral hole filling
02/13/2008CN100369108C Audio enhancement in coded domain
02/12/2008US7330901 Data stream-distribution system and method therefor
02/12/2008US7330814 Wideband speech coding with modulated noise highband excitation system and method
02/12/2008US7330813 Speech processing apparatus and mobile communication terminal
02/12/2008US7330812 Method and apparatus for transmitting an audio stream having additional payload in a hidden sub-channel
02/12/2008US7330563 Documents, articles and authentication of documents and articles
02/12/2008US7330562 Watermarking in the time-frequency domain
02/12/2008US7330555 Coding device and method, and recording medium
02/12/2008US7330136 Method and device to provide arithmetic decoding of scalable BSAC audio data
02/07/2008WO2008016949A2 Voice and text communication system, method and apparatus
02/07/2008WO2008016947A2 Systems and methods for including an identifier with a packet associated with a speech signal
02/07/2008WO2008016945A2 Systems and methods for modifying a window with a frame associated with an audio signal
02/07/2008WO2008016942A2 Systems, methods, and apparatus for signal change detection
02/07/2008WO2008016935A2 Systems, methods, and apparatus for wideband encoding and decoding of inactive frames
02/07/2008WO2008016925A2 Systems, methods, and apparatus for wideband encoding and decoding of active frames
02/07/2008WO2008016649A2 System and method for consistent power balance of notes played on sampled or synthesized sounds
02/07/2008WO2008016098A1 Stereo audio encoding device, stereo audio decoding device, and method thereof
02/07/2008WO2008016097A1 Stereo audio encoding device, stereo audio decoding device, and method thereof
02/07/2008WO2008015732A1 Band expanding device and method
02/07/2008WO2008015726A1 Band spreading device and method
02/07/2008WO2008014853A1 Device and method for processing a real subband signal for reducing aliasing effects
02/07/2008WO2008014654A1 A method, terminal, network side device and system for collecting the communication service quality
02/07/2008WO2007120308A3 Systems, methods, and apparatus for frequency-domain waveform alignment
02/07/2008US20080033731 Temporal envelope shaping for spatial audio coding using frequency domain wiener filtering
02/07/2008US20080033718 Classification-Based Frame Loss Concealment for Audio Signals
02/07/2008US20080033717 Speech coding apparatus, speech decoding apparatus and methods thereof
02/07/2008US20080033716 System and methods for concealing errors in data transmission
02/07/2008US20080031463 Multichannel audio coding
02/07/2008DE60311891T2 Audiocodierung Audio coding
02/07/2008CA2767327A1 Systems, methods, and apparatus for wideband encoding and decoding of active frames