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131. 发明专利

MX353997B MÉTODO PARA DECODIFICAR Y CODIFICAR UNA MATRIZ DE MEZCLA DESCENDENTE, MÉTODO PARA PRESENTAR CONTENIDOS DE AUDIO, CODIFICADOR Y DECODIFICADOR PARA UNA MATRIZ DE MEZCLA DESCENDENTE, CODIFICADOR DE AUDIO Y DECODIFICADOR DE AUDIO. 未知
公开(公告)号：MX353997B
公开(公告)日：2018-02-07
申请号：MX2016004924
申请日：2014-10-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： GRILL BERNHARD , KUNTZ ACHIM , FLORIN GHIDO
IPC分类号： G10L19/008 , G10L19/02 , G10L21/038
摘要： Se describe un método que decodifica una matriz de mezcla descendente (306) para mapear una pluralidad de canales de entrada (300) de contenido de audio con una pluralidad de canales de salida (302), donde los canales de entrada y salida (300, 302) están asociados a respectivos parlantes en posiciones predeterminadas con respecto a la posición de un oyente, donde la matriz de mezcla descendente (306) es codificada mediante el aprovechamiento de la simetría de pares de parlantes (S1-S9) de la pluralidad de canales de entrada (300) y la simetría de pares de parlantes (S10-S11) de la pluralidad de canales de salida (302). Se recibe y decodifica información codificada que representa la matriz de mezcla descendente codificada (306) para obtener la matriz de mezcla descendente decodificada (306).

132. 发明专利

AU2015205696B2 Apparatus and method for generating a plurality of audio channels 未知
公开(公告)号：AU2015205696B2
公开(公告)日：2017-12-14
申请号：AU2015205696
申请日：2015-01-05
申请人： FRAUNHOFER GES FORSCHUNG
发明人： BORSS CHRISTIAN , ERTEL CHRISTIAN , HILPERT JOHANNES , KUNTZ ACHIM , FISCHER MICHAEL , SCHUH FLORIAN , GRILL BERNHARD
IPC分类号： H04S3/02 , H04S7/00
摘要： An apparatus for generating a plurality of audio channels for a first speaker setup is characterized by an imaginary speaker determiner, an energy distribution calculator, a processor and a renderer. The imaginary speaker determiner is configured to determine a position of an imaginary speaker not contained in the first speaker setup to obtain a second speaker setup containing the imaginary speaker. The energy distribution calculator is configured to calculate an energy distribution from the imaginary speaker to the other speakers in the second speaker setup. The processor is configured to repeat the energy distribution to obtain a downmix information for a downmix from the second speaker setup to the first speaker setup. The renderer is configured to generate the plurality of audio channels using the downmix information.

133. 发明专利

AU2014339167B2 Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder 未知
公开(公告)号：AU2014339167B2
公开(公告)日：2017-01-05
申请号：AU2014339167
申请日：2014-10-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： GHIDO FLORIN , KUNTZ ACHIM , GRILL BERNHARD
IPC分类号： G10L19/008
摘要： A method is described which decodes a downmix matrix (306) for mapping a plurality of input channels (300) of audio content to a plurality of output channels (302), the input and output channels (300, 302) being associated with respective speakers at predetermined positions relative to a listener position, wherein the downmix matrix (306) is encoded by exploiting the symmetry of speaker pairs (S

134. 发明专利

AU2014339167A1 Method for decoding and encoding a downmix matrix, method for presenting audio content, encoder and decoder for a downmix matrix, audio encoder and audio decoder 未知
公开(公告)号：AU2014339167A1
公开(公告)日：2016-05-26
申请号：AU2014339167
申请日：2014-10-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： GHIDO FLORIN , KUNTZ ACHIM , GRILL BERNHARD
IPC分类号： G10L19/008
摘要： A method is described which decodes a downmix matrix (306) for mapping a plurality of input channels (300) of audio content to a plurality of output channels (302), the input and output channels (300, 302) being associated with respective speakers at predetermined positions relative to a listener position, wherein the downmix matrix (306) is encoded by exploiting the symmetry of speaker pairs (S

135. 发明专利

AU2013273846B2 Audio encoder, audio decoder, methods for encoding and decoding an audio signal, audio stream and computer program 未知
公开(公告)号：AU2013273846B2
公开(公告)日：2015-10-22
申请号：AU2013273846
申请日：2013-12-23
申请人： FRAUNHOFER GES FORSCHUNG
发明人： RETTELBACH NIKOLAUS , GRILL BERNHARD , FUCHS GUILLAUME , GEYRSBERGER STEFAN , MULTRUS MARKUS , POPP HARALD , HERRE JUERGEN , WABNIK STEFAN , SCHULLER GERALD , HIRSCHFELD JENS
IPC分类号： G10L19/00 , G10L19/02
摘要： Abstract An encoder for providing an audio stream on the basis of a transform-domain representation of an input audio signal comprises a quantization error calculator 5 configured to determine a multi-band quantization error over a plurality of frequency bands of the input audio signal for which separate band gain information is available. The encoder also comprises an audio stream provider configured to provide the audio stream such that the audio stream comprises an information describing an audio content of the frequency bands and an 10 information describing the multi-band quantization error. A decoder for providing a decoded representation of an audio signal on the basis of an encoded audio stream representing spectral components of frequency bands of the audio signal comprises a noise filler configured to 15 introduce noise into spectral components of a plurality of frequency bands to which separate frequency band gain information is associated on the basis of a common multi-band noise intensity value. Fig. 6 4985280_1 (GHMatters) P86105.AU.1

136. 发明专利

CA2926986A1 METHOD FOR DECODING AND ENCODING A DOWNMIX MATRIX, METHOD FOR PRESENTING AUDIO CONTENT, ENCODER AND DECODER FOR A DOWNMIX MATRIX, AUDIO ENCODER AND AUDIO DECODER 未知
公开(公告)号：CA2926986A1
公开(公告)日：2015-04-30
申请号：CA2926986
申请日：2014-10-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： GHIDO FLORIN , KUNTZ ACHIM , GRILL BERNHARD
IPC分类号： G10L19/008
摘要： A method is described which decodes a downmix matrix (306) for mapping a plurality of input channels (300) of audio content to a plurality of output channels (302), the input and output channels (300, 302) being associated with respective speakers at predetermined positions relative to a listener position, wherein the downmix matrix (306) is encoded by exploiting the symmetry of speaker pairs (S1-S9) of the plurality of input channels (300) and the symmetry of speaker pairs (S10-S11) of the plurality of output channels (302). Encoded information representing the encoded downmix matrix (306) is received and decoded for obtaining the decoded downmix matrix (306).

137. 发明专利

CA2691993C AUDIO ENCODER FOR ENCODING AN AUDIO SIGNAL HAVING AN IMPULSE-LIKE PORTION AND STATIONARY PORTION, ENCODING METHODS, DECODER, DECODING METHOD, AND ENCODED AUDIO SIGNAL 未知
公开(公告)号：CA2691993C
公开(公告)日：2015-01-27
申请号：CA2691993
申请日：2008-06-05
申请人： FRAUNHOFER GES FORSCHUNG
发明人： HERRE JURGEN , GEIGER RALF , BAYER STEFAN , FUCHS GUILLAUME , KRAMER ULRICH , RETTELBACH NIKOLAUS , GRILL BERNHARD
IPC分类号： G10L19/00 , G10L19/04 , G10L19/12
摘要： An audio encoder for encod-ing an audio signal includes an impulse extrac-tor (10) for extracting an impulse-like portion from the audio signal. This impulse-like por-tion is encoded and forwarded to an output in-terface (22). Furthermore, the audio encoder includes a signal encoder (16) which encodes a residual signal derived from the original au-dio signal so that the impulse-like portion is re-duced or eliminated in the residual audio signal. The output interface (22) forwards both, the en-coded signals, i.e., the encoded impulse signal (12) and the encoded residual signal (20) for transmission or storage. On the decoder-side, both signal portions are separately decoded and then combined to obtain a decoded audio sig-nal.

138. 发明专利

CA2730536C NOISE FILLER, NOISE FILLING PARAMETER CALCULATOR, METHOD FOR PROVIDING A NOISE FILLING PARAMETER, METHOD FOR PROVIDING A NOISE-FILLED SPECTRAL REPRESENTATION OF AN AUDIO SIGNAL, CORRESPONDING COMPUTER PROGRAM AND ENCODED AUDIO SIGNAL 未知
公开(公告)号：CA2730536C
公开(公告)日：2014-12-02
申请号：CA2730536
申请日：2009-06-26
申请人： FRAUNHOFER GES FORSCHUNG
发明人： RETTELBACH NIKOLAUS , GRILL BERNHARD , FUCHS GUILLAUME , GEYERSBERGER STEFAN , MULTRUS MARKUS , POPP HARALD , HERRE JUERGEN , WABNIK STEFAN , SCHULLER GERALD , HIRSCHFELD JENS
IPC分类号： G10L19/028
摘要： A noise filler for providing a noise-filled spectral representation of an audio signal on the basis of an input spectral representation of the audio signal comprises a spectral region identifier configured to identify spectral regions of the input spectral representation spaced from non-zero spectral regions of the input spectral representation by at least one intermediate spectral re-gion, to obtain identified spectral regions, and a noise inserter configured to selectively introduce noise into the identified spectral regions to obtain the noise-filled spectral representation of the audio signal. A noise filling parameter calculator for providing a noise filling parameter on the basis of a quantized spectral representation of an audio signal comprises a spectral region identifier, as mentioned above, and a noise value calculator configured to selectively consider quantization errors of the identified spectral regions for a calculation of the noise filling parameter. Accordingly, an encoded audio signal representation representing the audio signal can be obtained.

139. 发明专利

ES2453098T3 Códec multimodo de audio 未知
公开(公告)号：ES2453098T3
公开(公告)日：2014-04-04
申请号：ES10766284
申请日：2010-10-19
申请人： FRAUNHOFER GES FORSCHUNG
发明人： GEIGER RALF , FUCHS GUILLAUME , MULTRUS MARKUS , GRILL BERNHARD
IPC分类号： G10L19/083 , G10L19/20
摘要： Decodificador de audio multimodo (120; 320) para proporcionar una representación decodificada (322) del contenido de audio (24; 302) sobre la base de una corriente de bits codificada (36; 304), en el cual el decodificador multimodo de audio (120; 320) está configurado para decodificar un valor de ganancia global por marco (324, 326) de la corriente de bits codificada (36; 304), en el cual un primer subconjunto (324) de los marcos está codificado en un primer modo de codificación y un segundo subconjunto (326) de los marcos está codificado en un segundo modo de codificación, donde cada marco del segundo subconjunto está compuesto de más de un submarco (328), decodificar, por submarco de por lo menos un subconjunto de submarcos (328) del segundo subconjunto de marcos, un elemento de corriente de bits correspondiente en forma diferencial al valor de ganancia global del respectivo marco, y completar la decodificación de la corriente de bits (36; 304) utilizando el valor de ganancia global y el elemento de corriente de bits correspondiente al decodificar los submarcos de por lo menos un subconjunto de submarcos (328) del segundo subconjunto de marcos y el valor de ganancia global al decodificar el primer subconjunto de marcos, en el cual el decodificador multimodo de audio está configurado de modo tal que un cambio del valor de ganancia 20 global de los marcos dentro de la corriente de bits codificada (36; 304) tiene como resultado un ajuste (330) de un nivel de salida (332) de la representación decodificada (322) del contenido de audio (24; 302).

140. 发明专利

PL2352147T3 Urządzenie i sposób kodowania sygnału audio 未知
公开(公告)号：PL2352147T3
公开(公告)日：2014-02-28
申请号：PL11162255
申请日：2009-06-23
申请人： FRAUNHOFER GES FORSCHUNG
发明人： NEUENDORF MAX , KRÄMER ULRICH , GRILL BERNHARD , MULTRUS MARKUS , POPP HARALD , RETTELBACH NIKOLAUS , NAGEL FREDERIK , LOHWASSER MARKUS , GAYER MARC , JANDER MANUEL , BACIGALUPO VIRGILIO
IPC分类号： G10L19/20 , G10L19/008 , G10L21/02 , G10L21/038

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