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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 > Vector Quantization Vector QuantizationVector Quantization 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 - 20060271356 - Systems, methods, and apparatus for quantization of spectral envelope representation A quantizer according to an embodiment is configured to quantize a smoothed value of an input value (e.g., a vector of line spectral frequencies) to produce a corresponding output value, where the smoothed value is based on a scale factor and a quantization error of a previous output value. ... 08/10/06 - 20060178875 - Training wideband acoustic models in the cepstral domain using mixed-bandwidth training data and extended vectors for speech recognition A method and apparatus are provided that generate values for a first set of dimensions of a feature vector from a speech signal. The values of the first set of dimensions are used to estimate values for a second set of dimensions of the feature vector to form an extended ... 07/13/06 - 20060155532 - Apparatus and method for managing quality of a label switched path in a convergence network Provided are an apparatus and method for managing quality of a multi protocol label switching (MPLS) label switched path (LSP), which has been previously established in a convergence network. The apparatus for managing quality of a LSP includes: LSP provisioning/releasing means for provisioning and releasing the LSP in a convergence ... 07/06/06 - 20060149539 - Method for separating a sound frame into sinusoidal components and residual noise This invention relates to a method of determining (10) a second sound frame (20) representing sinusoidal components and an optionally third sound frame (30) representing a residual from a provided first sound frame, the method includes the steps of: determining a sinusoidal component in the first sound frame among non ... 06/22/06 - 20060136202 - Quantization of excitation vector A method is disclosed for performing excitation quantization of an input signal using a vector quantization codebook having a plurality of code-vectors, the codebook being associated with a filter system. The method can include determining filter states for the filter system independent of the codebook to define a codebook independent ... 06/01/06 - 20060116872 - Method for flexible bit rate code vector generation and wideband vocoder employing the same Provided are a flexible bit rate code vector generation method and a wideband vocoder employing the same. This invention implements a flexible bit rate by getting three code vectors which are composed of 24, 16, and 8 pulses, at a time in a search process, through improvement of an algebraic ... 04/13/06 - 20060080090 - Reusing codebooks in parameter quantization The present invention provides a new methodology for reusing codebooks for a multistage vector quantization of parameter quantizers of signals. Prior art multistage vector quantization is done in such a way that each stage has different optimized codebooks. The prior art codebooks, thus, use quite a lot of a memory ... 04/06/06 - 20060074643 - Apparatus and method of encoding/decoding voice for selecting quantization/dequantization using characteristics of synthesized voice A voice encoding/decoding method and apparatus. A voice encoder includes: a quantization selection unit generating a quantization selection signal; and a quantization unit extracting a linear prediction coding (LPC) coefficient from an input signal, converting the extracted LPC coefficient into a line spectral frequency (LSF), quantizing the LSF with a ... 04/06/06 - 20060074642 - Apparatus and methods for multichannel digital audio coding A low bit rate digital audio coding system includes an encoder which assigns codebooks to groups of quantization indexes based on their local properties resulting in codebook application ranges that are independent of block quantization boundaries. The invention also incorporates a resolution filter bank, or a tri-mode resolution filter bank, ... 03/30/06 - 20060069554 - Rew parametric vector quantization and dual-predictive sew vector quantization for waveform interpolative coding An enhanced analysis-by-synthesis waveform interpolative speech coder able to operate at 2.8 kbps. Novel features include dual-predictive analysis-by-synthesis quantization of the slowly-evolving waveform, efficient parametrization of the rapidly-evolving waveform magnitude, and analysis-by-synthesis vector quantization of the rapidly evolving waveform parameter. Subjective quality tests indicate that it exceeds G.723.1 at 5.3 ... 03/30/06 - 20060069553 - Methods and arrangements for adaptive thresholds in codec selection A method and arrangement for dynamically adapting thresholds used for selecting a codec mode to be used is presented. Thresholds are adapted in response to the current received signal quality. An estimate of actual prevailing received signal quality is obtained on which the adaptation is based. The present invention can ... 12/01/05 - 20050267744 - Audio signal encoding apparatus and audio signal encoding method Any disagreement of the power level before encoding an audio signal and the power level after encoding the audio signal is adjusted to improve the sound quality to the auditory sense. The present invention provides an audio signal encoding apparatus comprising, a band dividing section that divides an input audio ... 10/27/05 - 20050240398 - Techniques for quantization of spectral data in transcoding A transcoder reduces excess requantization error in quantization of spectral data. The transcoder phase shifts data decompressed by a decompressor. The phase shifting causes a change to corresponding spectral data produced in later transform coding of the decompressed data. When the spectral data is then quantized to reduce bitrate, the ... 06/30/05 - 20050143986 - Lpas speech coder using vector quantized, multi-codebook, multi-tap pitch predictor and optimized ternary source excitation codebook derivation A method and apparatus for reducing the complexity of linear prediction analysis-by-synthesis (LPAS) speech coders. The speech coder includes a multi-tap pitch predictor having various parameters and utilizing an adaptive codebook subdivided into at least a first vector codebook and a second vector codebook. The pitch predictor removes certain redundancies ... 06/23/05 - 20050137863 - Method and apparatus for speech coding A method and apparatus for prediction in a speech-coding system is provided herein. The method of a 1st order long-term predictor (LTP) filter, using a sub-sample resolution delay, is extended to a multi-tap LTP filter, or, viewed from another vantage point, the conventional integer-sample resolution multi-tap LTP filter is extended ... 06/23/05 - 20050137862 - Voice model for speech processing Methods and arrangements for generating a voice model in speech processing. Upon accepting at least two input vectors with spectral features, vectors of ranks are created via ranking values of the spectral features of each input vector, ordered vectors are created via arranging the values of each input vector according ... ### FreshPatents.com Support |