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Data Processing: Speech Signal Processing, Linguistics, Language Translation, And Audio Compression/decompression > Speech Signal Processing > For Storage Or Transmission > Quantization QuantizationQuantization 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.11/16/06 - 20060259298 - Audio coding device, audio coding method, audio decoding device, and audio decoding method There is provided an audio coding device which appropriately sets the quantization bit number by a small calculation amount in each stage when coding an input audio signal by performing multi-stage normalization/quantization. A quantization information calculation section determines total quantization information idw10, based on normalization information idsf, and allocates the ... 10/26/06 - 20060241942 - Techniques for measurement of perceptual audio quality An audio processing tool measures the quality of reconstructed audio data. For example, an audio encoder measures the quality of a block of reconstructed frequency coefficient data in a quantization loop. The invention includes several techniques and tools, which can be used in combination or separately. First, before measuring quality, ... 10/26/06 - 20060241941 - Techniques for measurement of perceptual audio quality An audio processing tool measures the quality of reconstructed audio data. For example, an audio encoder measures the quality of a block of reconstructed frequency coefficient data in a quantization loop. The invention includes several techniques and tools, which can be used in combination or separately. First, before measuring quality, ... 09/14/06 - 20060206323 - Audio coding A method of encoding a multi-channel audio signal including at least a first signal component (LF), a second signal component (LR) and a third signal component (RF). The method comprises the steps of encoding the first and second signal components by a first parametric encoder (202) resulting in a first ... 08/24/06 - 20060190247 - Near-transparent or transparent multi-channel encoder/decoder scheme A multi-channel encoder/decoder scheme additionally preferably generates a waveform-type residual signal. This residual signal is transmitted together with one or more multi-channel parameters to a decoder. In contrast to a purely parametric multi-channel decoder, the enhanced decoder generates a multi-channel output signal having an improved output quality because of the ... 08/10/06 - 20060178877 - Audio segmentation and classification A portion of an audio signal is separated into multiple frames from which one or more different features are extracted. These different features are used, in combination with a set of rules, to classify the portion of the audio signal into one of multiple different classifications (for example, speech, non-speech, ... 07/27/06 - 20060167683 - Apparatus and method for encoding an audio signal and apparatus and method for decoding an encoded audio signal When encoding an audio signal, the audio signal is first encoded with the first encoder to obtain a first encoder output signal. This first encoder output signal is written into a bit stream. It is further decoded by a decoder to provide a decoded audio signal. The decoded audio signal ... 04/27/06 - 20060089833 - Pitch determination based on weighting of pitch lag candidates There is provided a method of selecting a pitch lag value from a plurality of pitch lag candidates for coding a speech signal. The method comprises identifying the plurality of pitch lag candidates from a frame of the speech signal using correlation; classifying the speech signal to obtain a voice ... 03/02/06 - 20060047508 - Speech processing apparatus and method A speech processing apparatus and method for restricting use of generated speech data for purposes other than a particular purpose. An adder adds predetermined audio data within audio-frequency band excluding predetermined frequency band, to input speech data. A band limiting filter limits the speech data to which the predetermined audio ... 02/16/06 - 20060036436 - Method for dynamic selection of optimized codec for streaming audio content Several encoders at a broadcast system encode the same audio content. Packets from the resulting streams are immediately decoded and compared against the packets of the original audio stream. The broadcast system dynamically selects the codec that performs the best for the audio in any given packet. The packet produced ... 01/26/06 - 20060020453 - Speech signal compression and/or decompression method, medium, and apparatus A speech signal compression and/or decompression method, medium, and apparatus in which the speech signal is transformed into the frequency domain for quantizing and dequantizing information of frequency coefficients. The speech signal compression apparatus includes a transform unit to transform a speech signal into the frequency domain and obtain frequency ... 01/19/06 - 20060015332 - Audio coding device and method A method and a device for audio coding are disclosed. An audio coding device includes an audio coder for receiving audio signals and generating base data and enhancement data; and a rearranging device coupled to the audio coder. The rearranging device rearranges the enhancement data according to sectional factors of ... 10/13/05 - 20050228661 - Voice recognition method The subject of the invention is a voice recognition procedure which comprises: (a) a step of decomposition of a digitised voice signal into a plurality of fractions, (b) a step of representation of each of the fractions by means of a representative vector Xt, (c) a step of classification of ... 09/01/05 - 20050192800 - Noise feedback coding system and method for providing generalized noise shaping within a simple filter structure A noise feedback coding (NFC) system and method that utilizes a simple and relatively inexpensive general structural configuration, but achieves improved flexibility with respect to controlling the shape of coding noise. The NFC system and method utilizes an all-zero noise feedback filter that is configured to approximate the response of ... 08/25/05 - 20050187764 - Bit error concealment methods for speech coding A method of concealing bit errors in a signal is provided. The method comprises encoding a signal parameter according to a set of constraints placed on a signal parameter quantizer. The encoded signal parameter is decoded and compared against the set of c-onstraints. Finally, the method includes declaring the decoded ... 08/11/05 - 20050177367 - Quality and rate control strategy for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization using a noise measure that indicates reliability of a complexity measure. Third, an encoder ... 07/21/05 - 20050159947 - 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 ... 07/14/05 - 20050154585 - Multi-pulse speech coding/decoding with reduced convolution processing The present invention provides methods and systems for efficiently compressing information, such as speech data. By generating an excitation signal containing a number of zero and non-zero values and convolving the first signal with a known transfer function, a signal such as a codec residual signal can be compressed. While ... 06/30/05 - 20050143993 - Quality and rate control strategy for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization using a noise measure that indicates reliability of a complexity measure. Third, an encoder ... 06/30/05 - 20050143992 - Quality and rate control strategy for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization using a noise measure that indicates reliability of a complexity measure. Third, an encoder ... 06/30/05 - 20050143991 - Quality and rate control strategy for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization using a noise measure that indicates reliability of a complexity measure. Third, an encoder ... 06/30/05 - 20050143990 - Quality and rate control strategy for digital audio An audio encoder regulates quality and bitrate with a control strategy. The strategy includes several features. First, an encoder regulates quantization using quality, minimum bit count, and maximum bit count parameters. Second, an encoder regulates quantization using a noise measure that indicates reliability of a complexity measure. Third, an encoder ... 06/16/05 - 20050131683 - Time-scale modification of data-compressed audio information A data-compressed audio waveform is temporally modified without requiring complete decompression of the audio signal. Packets of compressed audio data are first unpacked, to remove scaling that was applied in the formation of the packets. The unpacked data is then temporally modified, using one of a number of different approaches. ... ### FreshPatents.com Support |