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US20110004469 VECTOR QUANTIZATION DEVICE, VECTOR INVERSE QUANTIZATION DEVICE, AND METHOD THEREOF  
Disclosed are a vector quantization device and others capable of adaptively adjusting a vector space of a code vector for quantization of a second stage by using a quantization result of a first...
US20090240494 VOICE ENCODING DEVICE AND VOICE ENCODING METHOD  
Provided is a voice encoding device which performs voice encoding by a fixed code book effectively using a bit. In the voice encoding device, a position/polarity calculation unit (205) in a search...
US20090043572 PULSE ALLOCATING METHOD IN VOICE CODING  
A pulse allocating method capable of coding stereophonic voice signals efficiently. In the fixed code note retrievals (ST21 to ST25) of this pulse allocating method, for individual subframes, the...
US20060036433 Method and system of dynamically changing a sentence structure of a message  
A method (50) of dynamically changing a sentence structure of a message can include the step of receiving (51) a user request for information, retrieving (52) data based on the information...
US20130204615 METHOD FOR SPEECH CODING, METHOD FOR SPEECH DECODING AND THEIR APPARATUSES  
A high quality speech is reproduced with a small data amount in speech coding and decoding for performing compression coding and decoding of a speech signal to a digital signal. In speech coding...
US20090006085 AUTOMATED CALL CLASSIFICATION AND PRIORITIZATION  
An automated voice message or caller prioritization system that extracts words, prosody, and/or metadata from a voice input. The data extracted is classified with a statistical classifier into...
US20060253280 Speech derived from text in computer presentation applications  
A computer system comprising hardware and software elements; the hardware elements including a processor, a display means and a speaker, the software elements comprising a speech synthesizer, a...
US20060025991 Voice coding apparatus and method using PLP in mobile communications terminal  
A voice coding apparatus and method of a mobile communications terminal can embody higher compressibility and ensure high sound quality, compared with the case of using a Linear Prediction (LP)...
US20080154588 Speech Coding System to Improve Packet Loss Concealment  
A method of significantly reducing error propagation due to voice packet loss, while still greatly profiting from long-term pitch prediction, is achieved by adaptively limiting the maximum value...
US20080154586 Dual-Pulse Excited Linear Prediction For Speech Coding  
The invention proposed a Dual-Pulse Excitation Model; wherein two pulses of each pair of pulses are always adjacent each other. Only one position index for each pair of pulses needs to be sent to...
US20050125223 Audio-visual highlights detection using coupled hidden markov models  
A method uses probabilistic fusion to detect highlights in videos using both audio and visual information. Specifically, the method uses coupled hidden Markov models (CHMMs). Audio labels are...
US20050251387 Method and device for gain quantization in variable bit rate wideband speech coding  
The present invention relates to a gain quantization method and device for implementation in a technique for coding a sampled sound signal processed, during coding, by successive frames of L...
US20090164211 SPEECH ENCODING APPARATUS AND SPEECH ENCODING METHOD  
Provided is a voice encoding device for acquiring a satisfactory sound quality by making sufficient use of a tendency according to the noisiness or noiselessness of an input signal to be encoded....
US20050192798 Classification of audio signals  
An encoder comprising an input for inputting frames of an audio signal in a frequency band, at least a first excitation block for performing a first excitation for a speech like audio signal, and...
US20060224381 Detecting speech frames belonging to a low energy sequence  
In order to enable a detection of speech frames belonging to a low energy sequence of a speech signal, it is proposed that a speech energy in a current speech frame is determined. Further, a...
US20070005351 Method and system for bandwidth expansion for voice communications  
The invention concerns a method (400) and system (100) for bandwidth extension of voice for improving the quality of voice in a communication system. The method can include the steps of receiving...
US20080147385 MEMORY-EFFICIENT METHOD FOR HIGH-QUALITY CODEBOOK BASED VOICE CONVERSION  
An improved system method for enabling and implementing codebook-based voice conversion that both significantly reduces the memory footprint and improves the continuity of the output. In various...
US20080154587 Gain Quantization System for Speech Coding to Improve Packet Loss Concealment  
In order to recover the excitation energy quickly and keep the adaptive excitation contribution percentage in the entire excitation after bit-stream packet loss, the two excitation gains (Gp 305...
US20090271184 SCALABLE ENCODING DEVICE, AND SCALABLE ENCODING METHOD  
Disclosed is a scalable encoding device capable of reducing an encoding rate thereby to reduce a circuit scale while preventing sound quality deterioration of a decoded signal. In this device, an...
US20080281588 SPEECH PROCESSING METHOD AND APPARATUS, STORAGE MEDIUM, AND SPEECH SYSTEM  
A speech processing apparatus includes a spectrum envelope extracting unit which extracts the spectrum envelope of an input speech signal, a spectrum envelope deforming unit which applies...
US20090094026 METHOD OF DETERMINING AN ESTIMATED FRAME ENERGY OF A COMMUNICATION  
A method of processing a communication includes determining an estimated excitation energy component of a subframe of a coded frame. A filter energy component of the subframe is also estimated....
US20080071530 Audio Decoding Device And Compensation Frame Generation Method  
There is disclosed an audio decoding device capable of improving audio quality of a decoded signal by considering the energy change of a past signal in eracure concealment processing. In this...
US20060235681 Adaptive pulse allocation mechanism for linear-prediction based analysis-by-synthesis coders  
A scheme of allocating variable pulses for each frame is proposed to reduce the bit-rate of LP based AbS coders while maintaining the same speech quality. Since speech signal is not stationary,...
US20050256701 Selection of coding models for encoding an audio signal  
The invention relates to a method of selecting a respective coding model for encoding consecutive sections of an audio signal, wherein at least one coding model optimized for a first type of audio...
US20090043573 METHOD AND APPARATUS FOR RECOGNIZING A SPEAKER IN LAWFUL INTERCEPTION SYSTEMS  
A method and apparatus for identifying a speaker within a captured audio signal from a collection of known speakers. The method and apparatus receive or generate voice representations for each...
US20070124140 Method for extending the spectral bandwidth of a speech signal  
A method for extending the spectral bandwidth of an excitation signal of a speech signal includes determining a bandwidth limited excitation signal of the speech signal, and applying a nonlinear...
US20090043574 Speech coding system and method using bi-directional mirror-image predicted pulses  
There is provided a method of decoding speech data generated from a speech signal. The method comprises receiving the speech data having at least one main pulse in a subframe of the speech data;...
US20050278169 Half-rate vocoder  
Encoding a sequence of digital speech samples into a bit stream includes dividing the digital speech samples into one or more frames, computing model parameters for a frame, and quantizing the...
US20090248406 CODING METHOD, ENCODER, AND COMPUTER READABLE MEDIUM  
A coding method is adapted to select different codebook search algorithms according to varied types of input signals. An encoder using the coding method is also provided. As appropriate search...
US20060106600 Method and device for low bit rate speech coding  
A method for coding speech or other generic signals includes dividing a speech signal into a plurality of frames, and dividing at least one of the plurality of frames into at least two subframe...
US20070150266 Search system and method thereof for searching code-vector of speech signal in speech encoder  
The present invention provides a method for searching a target code-vector of a speech signal in a speech encoder. The target code-vector defines a plurality of pulse positions and includes a...
US20060206319 Low-complexity code excited linear prediction encoding  
Information about excitation signals of a first signal encoded by CELP is used to derive a limited set of candidate excitation signals for a second correlated second signal. Preferably, pulse...
US20080015850 QUANTIZATION MATRICES FOR DIGITAL AUDIO  
Quantization matrices facilitate digital audio encoding and decoding. An audio encoder generates and compresses quantization matrices; an audio decoder decompresses and applies the quantization...
US20100088090 ARITHMETIC ENCODING FOR CELP SPEECH ENCODERS  
A communication system (100) includes devices (102, 104, 200) for transmitting and receiving digital audio. The devices use audio encoders (210, 804) and decoders (222, 916) such as ACELP or...
US20090299736 Pitch period equalizing apparatus and pitch period equalizing method, and speech coding apparatus, speech decoding apparatus, and speech coding method  
To provide a speech coding technology that realizes a low bit rate and can suppress distortion of reproduction speech as compared with a conventional technology. There are provided pitch detecting...
US20090281795 SPEECH ENCODING APPARATUS, SPEECH DECODING APPARATUS, SPEECH ENCODING METHOD, AND SPEECH DECODING METHOD  
There is provided an audio encoding device for correcting the component having insufficient encoding capability in the core layer by an extended layer. In this device, a core layer encoding unit...
US20080281587 Audio Encoding Apparatus, Audio Decoding Apparatus, Communication Apparatus and Audio Encoding Method  
An audio encoding apparatus and the like are disclosed which can improve the sound quality of encoded audio signals even in a case of scalable CELP encoding the audio signals in sections that vary...
US20100145688 Method and apparatus for encoding/decoding speech signal using coding mode  
An apparatus and a method to encode and decode a speech signal using an encoding mode are provided. An encoding apparatus may select an encoding mode of a frame included in an input speech signal,...
US20060167682 Adaptive and progressive audio stream descrambling  
A process for distributing digital audio sequences in streams including data sequences containing digital audio blocks including modifying at least a part of the data sequences in an original...
US20090018826 Methods, Systems and Devices for Speech Transduction  
Methods, systems, and devices for speech transduction are disclosed. One aspect of the invention involves a computer-implemented method in which a computer receives far-field acoustic data...
US20060085182 Method and system for augmenting an audio signal  
A system and method is described in which a multimedia story is rendered to a consumer in dependence on features extracted from an audio signal representing for example a musical selection of the...
US20150073784 Adaptive Bandwidth Extension and Apparatus for the Same  
In one embodiment of the present invention, a method of decoding an encoded audio bitstream and generating frequency bandwidth extension includes decoding the audio bitstream to produce a decoded...
US20100049509 AUDIO ENCODING DEVICE AND AUDIO DECODING DEVICE  
Disclosed are an audio encoding device and an audio decoding device which reduce degradation of subjective quality of a decoding signal caused by power mismatch of a decoding signal which is...
US20050240399 Signal encoding  
A method for encoding a frame in an encoder of a communication system, said method comprising the steps of: calculating a first set of parameters associated with the frame, wherein said first set...
US20100049508 AUDIO ENCODING DEVICE AND AUDIO ENCODING METHOD  
Provided is an audio encoding device which performs a closed loop search of a gain and a sound source vector without significantly increasing the calculation amount as compared to an open loop...
US20060277042 Systems, methods, and apparatus for anti-sparseness filtering  
In one embodiment, a method of generating a highband excitation signal includes generating a spectrally extended signal by extending the spectrum of a signal that is based on an encoded lowband...
US20100169079 PSYCHOACOUSTIC TIME ALIGNMENT  
A method of providing a quality measure for an output voice signal generated to reproduce an input voice signal, the method comprising: partitioning the input and output signals into frames; for...
US20100057448 MULTICODEBOOK SOURCE-DEPENDENT CODING AND DECODING  
A method for coding data, includes: grouping data into frames; classifying the frames into classes; for each class, transforming the frames belonging to the class into filter parameter vectors,...
US20100179807 AUDIO ENCODING DEVICE AND AUDIO ENCODING METHOD  
Provided is an audio encoding device capable of improving performance of an adaptive codebook and improving quality of a decoded audio. In this audio encoding device, an adaptive codebook (113)...
US20100256975 SPEECH CODER AND SPEECH DECODER  
A CELP speech decoder includes an adaptive codebook that generates an adaptive code vector and a random codebook that generates a random code vector. The random codebook includes an input vector...

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