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Data Processing: Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/decompression > Speech Signal Processing > For Storage Or Transmission > Pattern Matching Vocoders > Excitation Patterns Excitation PatternsExcitation Patterns patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.11/30/06 - 20060271357 - Sub-band voice codec with multi-stage codebooks and redundant coding Techniques and tools related to coding and decoding of audio information are described. For example, redundant coded information for decoding a current frame includes signal history information associated with only a portion of a previous frame. As another example, redundant coded information for decoding a coded unit includes parameters for ... 11/09/06 - 20060253280 - 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 database platform and a software application comprising a methodology of inputting and tabulating visual elements and verbal elements into the database, links ... 10/19/06 - 20060235682 - Excitation vector generator, speech coder and speech decoder An excitation vector generator includes an input vector providing system that is capable of providing an input vector having at least one pulse, each pulse having a predetermined position and a respective polarity. A fixed waveform storage system is capable of storing at least one fixed waveform. An arranging system ... 10/19/06 - 20060235681 - 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, the required pulse count in a speech coder should be variable frame by frame. In this patent the ... 10/05/06 - 20060224381 - 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 speech energy level is estimated based on a speech energy in a plurality of speech ... 09/14/06 - 20060206319 - 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 locations of the excitation signals of the first encoded signal are used for determining the set of candidate excitation signals. ... 08/03/06 - 20060173677 - Audio encoding device, audio decoding device, audio encoding method, and audio decoding method Base layer coding section 101 encodes an input signal to obtain base layer coded information. Base layer decoding section 102 decodes the base layer coded information to obtain a base layer decoded signal and long term prediction information (pitch lag). Adding section 103 inverts the polarity of the base layer ... 07/27/06 - 20060167682 - 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 stream to produce a modified stream in a same nominal format as the original stream, transmitting the modified stream, and reconstructing ... 07/13/06 - 20060155534 - Codebook generation system and associated methods A codebook generation system and associated methods are generally described herein. ... 07/13/06 - 20060155533 - Codebook generation system and associated methods A codebook generation system and associated methods are generally described herein. ... 07/06/06 - 20060149540 - System and method for supporting multiple speech codecs A method for performing a search of a codebook is provided. The codebook includes a plurality of tracks each having a plurality of even pulse positions. The method includes partitioning a codevector having a plurality of pulses into a first subset of pulses and a second subset of pulses. Each ... 05/18/06 - 20060106600 - 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 units. A search for a fixed codebook contribution and an adaptive codebook contribution for subframe units ... 04/20/06 - 20060085182 - 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 consumer. Features such as key changes and tempo of the music selection are related to dramatic parameters ... 04/13/06 - 20060080091 - Speech coder and speech decoder A code excited linear prediction speech decoder is provided. An adaptive codebook generates an adaptive code vector. A random codebook generates a random code vector. A synthesis filter receives a signal based on the adaptive code vector and the random code vector, and performs linear prediction coefficient synthesis on the ... 04/06/06 - 20060074644 - Voice code conversion apparatus Disclosed is a voice code conversation apparatus to which voice code obtained by a first voice encoding method is input for converting this voice code to voice code of a second voice encoding method. The apparatus includes a code separating unit for separating, from the voice code based upon the ... 02/16/06 - 20060036433 - 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 requested, and altering (53) among an intonation and/or the language conveying the information based on the context of the ... 02/02/06 - 20060025991 - 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) coefficient, by performing a Linear Predictive Coding (LPC) using a Perceptual Linear Prediction (PLP) coefficient. ... 12/15/05 - 20050278169 - 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 model parameters to produce pitch bits conveying pitch information, voicing bits conveying voicing information, and gain bits conveying signal ... 11/24/05 - 20050261900 - Supporting a switch between audio coder modes The invention relates to a method for supporting an encoding of an audio signal, wherein a first coder mode and a second coder mode are available for encoding a respective section of an audio signal. The second coder mode enables a coding of a respective section based on a first ... 11/17/05 - 20050256704 - 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 method according to a code-excited linear prediction (CELP) speech coding, a noise level of a speech in ... 11/17/05 - 20050256703 - System and method for analyzing a waveform to detect specified patterns Disclosed are techniques for analyzing waveforms to determine the existence of certain patterns in those waveforms. The existence of certain patterns can be used by investors to make decisions regarding the purchase or sale of stocks. The processes include a determination of the formation of a base, whether the pattern ... 11/17/05 - 20050256702 - Algebraic codebook search implementation on processors with multiple data paths A method for codebook search in an algebraic code-excited linear prediction (ACELP) encoder is implemented with a multiple data path processor. The invention is particularly applicable in speech coders based on the ITU standards G.729 and G.723.1, and as applied to GSM adaptive multi-rate WB. Processors with multiple data paths ... 11/17/05 - 20050256701 - 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 content and at least one coding model optimized for a second type of audio content are available ... 11/10/05 - 20050251387 - 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 samples, wherein each frame is divided into a number of subframes and each subframe comprises a number N of samples, ... 10/27/05 - 20050240399 - 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 of parameters comprises filter bank parameters; selecting, in a first stage, one of a plurality of encoding ... 09/15/05 - 20050203734 - Speech coder and speech decoder A code excited linear prediction speech decoder includes an adaptive codebook configured to generate an adaptive code vector. The decoder also includes a random codebook configured to generate a random code vector. The decoder also includes a a synthesis filter that receives a signal based on said adaptive code vector ... 09/15/05 - 20050203733 - Method of comfort noise generation for speech communication An embodiment of the invention improves upon the International Telecommunication Union's ITU-T G.729 Annex B comfort noise generation algorithm by reducing the computational complexity of the comfort noise generation algorithm. The computational complexity is reduced by reusing pre-computed random Gaussian noise samples for each non active voice frame versus calculating ... 09/08/05 - 20050197833 - Apparatus and method for speech coding CELP-based speech encoder that performs encoding by decomposing one frame into a plurality of subframes, includes an LPC synthesizer that obtains synthesized speech by filtering an adaptive excitation vector and a stochastic excitation vector stored in an adaptive codebook and in an stochastic codebook using LPC coefficients obtained from input ... 09/01/05 - 20050192798 - 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 a second excitation block for performing a second excitation for a non-speech like audio signal. The ... 07/07/05 - 20050149324 - 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 matrices. The invention includes several techniques and tools, which can be used in combination or separately. For example, the audio encoder can generate quantization matrices from ... 07/07/05 - 20050149323 - 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 matrices. The invention includes several techniques and tools, which can be used in combination or separately. For example, the audio encoder can generate quantization matrices from ... 06/30/05 - 20050143987 - Bitstream-based feature extraction method for a front-end speech recognizer A feature extraction process for use in a wireless communication system provides automatic speech recognition based on both spectral envelope and voicing information. The shape of the spectral envelope is used to determine the LSPs of the incoming bitstream and the adaptive gain coefficients and fixed gain coefficients are used ... 06/09/05 - 20050125223 - 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 generated using audio classification via Gaussian mixture models (GMMs), and visual labels are generated by quantizing average motion vector magnitudes. Highlights are ... ### FreshPatents.com Support |