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41. 发明专利

CA3134343A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING 未知
公开(公告)号：CA3134343A1
公开(公告)日：2019-04-11
申请号：CA3134343
申请日：2018-10-01
申请人： FRAUNHOFER GES FORSCHUNG
发明人： FUCHS GUILLAUME , HERRE JUERGEN , KUECH FABIAN , DOEHLA STEFAN , MULTRUS MARKUS , THIERGART OLIVER , WUEBBOLT OLIVER , GHIDO FLORIN , BAYER STEFAN , JAEGERS WOLFGANG
摘要： An apparatus for generating a description of a combined audio scene, comprises: an input interface (100) for receiving a first description of a first scene in a first format and a second description of a second scene in a second format, wherein the second forrnat is different from the first format; a format converter (120) for converting the first description into a common format and for converting the second description into the common format, when the second format is different from the common format; and a format combiner (140) for combining the first description in the common format and the second description in the common format to obtain the combined audio scene.

42. 发明专利

CA3069772A1 CONCEPT FOR GENERATING AN ENHANCED SOUND-FIELD DESCRIPTION OR A MODIFIED SOUND FIELD DESCRIPTION USING A DEPTH-EXTENDED DIRAC TECHNIQUE OR OTHER TECHNIQUES 未知
公开(公告)号：CA3069772A1
公开(公告)日：2019-01-17
申请号：CA3069772
申请日：2018-07-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： HERRE JUERGEN , HABETS EMANUEL , PLINGE AXEL , THIERGART OLIVER , KUECH FABIAN
IPC分类号： G10L19/008 , G06F3/01 , G10L21/0272 , H04S7/00
摘要： An apparatus for generating an enhanced sound field description comprises: a sound field generator (100) for generating at least one sound field description indicating a sound field with respect to at least one reference location; and a meta data generator (110) for generating meta data relating to spatial information of the sound field, wherein the at least one sound field description and the meta data constitute the enhanced sound field description. The meta data can be a depth map associating a distance information to a direction in a full band or a subband, i.e., a time frequency bin.

43. 发明专利

CA3069403A1 CONCEPT FOR GENERATING AN ENHANCED SOUND-FIELD DESCRIPTION OR A MODIFIED SOUND FIELD DESCRIPTION USING A MULTI-LAYER DESCRIPTION 未知
公开(公告)号：CA3069403A1
公开(公告)日：2019-01-17
申请号：CA3069403
申请日：2018-07-13
申请人： FRAUNHOFER GES FORSCHUNG
发明人： HERRE JUERGEN , HABETS EMANUEL
IPC分类号： G10L19/008 , G06F3/01 , G10L21/0272 , H04S7/00
摘要： An apparatus for generating an enhanced sound field description comprises: a sound field generator (100) for generating at least two sound field layer descriptions indicating sound fields with respect to at least one reference location; and a meta data generator (110) for generating meta data relating to spatial information of the sound fields, wherein the sound field descriptions and the meta data constitute the enhanced sound field description. The meta data can be a geometrical information for each layer such as a representative distance to the reference location.

44. 发明专利

RU2672386C1 УСТРОЙСТВО И СПОСОБ ДЛЯ ПРЕОБРАЗОВАНИЯ ПЕРВОГО И ВТОРОГО ВХОДНЫХ КАНАЛОВ ПО МЕНЬШЕЙ МЕРЕ В ОДИН ВЫХОДНОЙ КАНАЛ 未知
公开(公告)号：RU2672386C1
公开(公告)日：2018-11-14
申请号：RU2017143522
申请日：2014-07-15
申请人： FRAUNHOFER GES FORSCHUNG
发明人： HERRE JUERGEN , KUECH FABIAN , KRATSCHMER MICHAEL , KUNTZ ACHIM , FALLER CHRISTOPH
IPC分类号： H04S7/00 , G10L19/00
摘要： Изобретениеотноситсяк областикодированияаудиосигналови предназначенодляпреобразованияпервогои второговходныхканаловв одинвыходнойканал, ив частности, предназначенодляиспользованияприпреобразованииформатамеждуразличнымиконфигурациямиканаловгромкоговорителей. Техническийрезультат - улучшенноевоспроизведениезвукав случаепреобразованияформатамеждуразличнымиконфигурациямиканаловгромкоговорителей. Пространственноекодированиеаудионачинаетсяс множестваисходныхвходных, напримерпятиилисеми, каналов, которыеидентифицируютсяпосредствомихразмещенияв компоновкедлявоспроизведенияв качествелевогоканала, центральногоканала, правогоканала, левогоканалаобъемногозвучания, правогоканалаобъемногозвучанияи каналаулучшениянизкихчастот (LFE). Вустройствекаждыйвходнойканали каждыйвыходнойканалимеютнаправление, вкоторомрасположенассоциированныйгромкоговорительотносительноцентральнойпозициислушателя, приэтомустройствовыполненос возможностьюпреобразовыватьпервыйвходнойканалв первыйвыходнойканализконфигурациивыходныхканалов. 3 н. и 1 з.п. ф-лы, 14 ил., 4 табл.

45. 发明专利

ES2653975T3 Decodificador de audio multicanal, codificador de audio multicanal, procedimientos, programa informático y representación de audio codificada mediante el uso de una decorrelación de señales de audio renderizadas 未知
公开(公告)号：ES2653975T3
公开(公告)日：2018-02-09
申请号：ES14739483
申请日：2014-07-17
申请人： FRAUNHOFER GES FORSCHUNG
发明人： DISCH SASCHA , FUCHS HARALD , HELLMUTH OLIVER , HERRE JUERGEN , MURTAZA ADRIAN , PAULUS JOUNI , RIDDERBUSCH FALKO , TERENTIV LEON
IPC分类号： H04S3/00 , G10L19/008
摘要： Un decodificador de audio multicanal (100; 700; 1550; 3000) para proporcionar al menos dos señales de audio de salida (112,114; 712,714; 1552a - 1552n; 3012) en base a una representación codificada (110; 710; 1516a, 1516b,1518), parqueen el que el decodificador de audio multicanal se configura para renderizar (130; 1580) una pluralidad de señales de audio decodificadas (122; 1562a - 1562n, ), que se obtienen en base a la representación codificada, a una escena objetivo de multicanales en dependencia de uno o más parámetros de renderización que definen una matriz de renderización, para obtener una pluralidad de señales de audio renderizadas (134, 136; 1582a-1582n, ), y en el que el decodificador de audio multicanal se configura para derivar (140; 1590) una o varias señales de audio decorrelacionadas (142,144; 1592a-1592n) de las señales de audio renderizadas, y en el que el decodificador de audio multicanal se configura para combinar (150;1598) las señales de audio renderizadas, o una de sus versiones en escala, con una o varias señales de audio decorrelacionadas, para obtener las señales de audio de salida, en el que el decodificador de audio multicanal se configura para obtener las señales de audio decodificadas, que se renderizan para obtener la pluralidad de señales de audio renderizadas, utilizando una reconstrucción paramétrica (120; 1560); en el que las señales de audio decodificadas son señales de objeto reconstruidas, y en el que el decodificador de audio multicanal se configura para derivar las señales de objeto reconstruidas de una o más señales de mezcla descendente (1516a, 1516b) utilizando una información lateral (1518).

46. 发明专利

CA3011883A1 APPARATUS AND METHOD FOR MDCT M/S STEREO WITH GLOBAL ILD TO IMPROVE MID/SIDE DECISION 未知
公开(公告)号：CA3011883A1
公开(公告)日：2017-07-27
申请号：CA3011883
申请日：2017-01-20
申请人： FRAUNHOFER GES FORSCHUNG
发明人： RAVELLI EMMANUEL , SCHNELL MARKUS , DOEHLA STEFAN , JAEGERS WOLFGANG , DIETZ MARTIN , HELMRICH CHRISTIAN , MARKOVIC GORAN , FOTOPOULOU ELENI , MULTRUS MARKUS , BAYER STEFAN , FUCHS GUILLAUME , HERRE JUERGEN
IPC分类号： G10L19/008 , G10L19/02 , G10L19/22
摘要： Fig. illustrates an apparatus for encoding a first channel and a second channel of an audio input signal comprising two or more channels to obtain an encoded audio signal according to an embodiment. The apparatus comprises a normalizer (110) configured to determine a normalization value for the audio input signal depending on the first channel of the audio input signal and depending on the second channel of the audio input signal, wherein the normalizer (110) is configured to determine a first channel and a second channel of a normalized audio signal by modifying, depending on the normalization value, at least one of the first channel and the second channel of the audio input signal. Moreover, the apparatus comprises an encoding unit (120) being configured to generate a processed audio signal having a first channel and a second channel, such that one or more spectral bands of the first channel of the processed audio signal are one or more spectral bands of the first channel of the normalized audio signal, such that one or more spectral bands of the second channel of the processed audio signal are one or more spectral bands of the second channel of the normalized audio signal, such that at least one spectral band of the first channel of the processed audio signal is a spectral band of a mid signal depending on a spectral band of the first channel of the normalized audio signal and depending on a spectral band of the second channel of the normalized audio signal, and such that at least one spectral band of the second channel of the processed audio signal is a spectral band of a side signal depending on a spectral band of the first channel of the normalized audio signal and depending on a spectral band of the second channel of the normalized audio signal. The encoding unit (120) is configured to encode the processed audio signal to obtain the encoded audio signal.

47. 发明专利

AU2016202604A1 Apparatus and method for merging geometry-based spatial audio coding streams 未知
公开(公告)号：AU2016202604A1
公开(公告)日：2016-05-19
申请号：AU2016202604
申请日：2016-04-22
申请人： FRAUNHOFER GES FORSCHUNG
发明人： DEL GALDO GIOVANNI , THIERGART OLIVER , HERRE JUERGEN , KUECH FABIAN , HABETS EMANUEL , CRACIUN ALEXANDRA , KUNTZ ACHIM
IPC分类号： G10L19/00
摘要： Apparatus and Method for Merging Geometry-based Spatial Audio Coding Streams Abstract 5 An apparatus for generating a merged audio data stream is provided. The apparatus comprises a demultiplexer (180) for obtaining a plurality of single-layer audio data streams, wherein the demultiplexer (180) is adapted to receive one or more input audio data streams, wherein each input audio data stream comprises one or more layers, wherein the demultiplexer (180) is adapted to demultiplex each one of the input audio data streams 10 having one or more layers into two or more demultiplexed audio data streams having exactly one layer, such that the two or more demultiplexed audio data streams together comprise the one or more layers of the input audio data stream. Furthermore, the apparatus comprises a merging module (190) for generating the merged audio data stream, having one or more layers, based on the plurality of single-layer audio data streams. Each layer of 15 the input data audio streams, of the demultiplexed audio data streams, of the single-layer data streams and of the merged audio data stream comprises a pressure value of a pressure signal, a position value and a diffuseness value as audio data. Fig. 1

48. 发明专利

CA2871268C AUDIO ENCODER, AUDIO DECODER, METHODS FOR ENCODING AND DECODING AN AUDIO SIGNAL, AUDIO STREAM AND COMPUTER PROGRAM 未知
公开(公告)号：CA2871268C
公开(公告)日：2015-11-03
申请号：CA2871268
申请日：2009-06-25
申请人： FRAUNHOFER GES FORSCHUNG
发明人： RETTLEBACH NIKOLAUS , GRILL BERNHARD , FUCHS GUILLAUME , GEYERSBERGER STEFAN , MULTRUS MARKUS , POPP HARALD , HERRE JUERGEN , WABNIK STEFAN , SCHULLER GERALD , HIRSCHFELD JENS
IPC分类号： G10L19/035 , G10L19/028
摘要： An encoder providing an audio stream on the basis of a transform-domain representation of an input audio signal is disclosed. The encoder comprises a quantization error calculator and an audio stream provider. The quantization error calculator determines a scalar multi-band quantization error over frequency bands of the input audio signal, for which separate band gain information is available. The audio stream is provided such that it comprises spectral information describing an audio content of the frequency bands and information describing the multi- band quantization error. The quantization error calculator determines the multi-band quantization error over a plurality of frequency bands each comprising at least one spectral component quantized to a non-zero value while avoiding frequency bands, spectral components of which are entirely quantized to zero. A method for providing the audio stream and a computer program product for executing the method are also disclosed.

49. 发明专利

AU2011334840B2 Apparatus and method for spatially selective sound acquisition by acoustic triangulation 未知
公开(公告)号：AU2011334840B2
公开(公告)日：2015-09-03
申请号：AU2011334840
申请日：2011-12-02
申请人： FRAUNHOFER GES FORSCHUNG , UNIV FRIEDRICH ALEXANDER ER
发明人： HERRE JUERGEN , KUECH FABIAN , KALLINGER MARKUS , DEL GALDO GIOVANNI , GRILL BERNHARD
IPC分类号： H04R1/40 , H04R3/00
摘要： An apparatus for capturing audio information from a target location is provided. The apparatus comprises a first beamformer (110) being arranged in a recording environment and having a first recording characteristic, a second beamformer (120) being arranged in the recording environment and having a second recording characteristic and a signal generator (130). The first beamformer (110) is configured for recording a first beamformer audio signal and the second beamformer is configured for recording a second beamformer audio signal when the first beamformer (110) and the second beamformer (120) are directed towards the target location with respect to the first and the second recording characteristic. The first beamformer (110) and the second beamformer (120) are arranged such that a first virtual straight line, being defined to pass through the first beamformer (110) and the target location, and a second virtual straight line, being defined to pass through the second beamformer (120) and the target location, are not parallel with respect to each other. The signal generator (130) is configured to generate an audio output signal based on the first beamformer audio signal and on the second beamformer audio signal so that the audio output signal reflects relatively more audio information from the target location compared to the audio information from the target location in the first and the second beamformer audio signal.

50. 发明专利

AU2012213646B2 Semantic audio track mixer 未知
公开(公告)号：AU2012213646B2
公开(公告)日：2015-07-16
申请号：AU2012213646
申请日：2012-01-11
申请人： FRAUNHOFER GES FORSCHUNG
发明人： UHLE CHRISTIAN , HERRE JUERGEN , POPP HARALD , RIDDERBUSCH FALKO
IPC分类号： G10L15/26 , G06F9/44 , G10L15/22 , H04H60/04
摘要： An audio mixer for mixing a plurality of audio tracks to a mixture signal comprises a semantic command interpreter (30; 35) for receiving a semantic mixing command and for deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; an audio track processor (70; 75) for processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and an audio track combiner (76) for combining the plurality of audio tracks processed by the audio track processor into the mixture signal (MS). A corresponding method comprises: receiving a semantic mixing command; deriving a plurality of mixing parameters for the plurality of audio tracks from the semantic mixing command; processing the plurality of audio tracks in accordance with the plurality of mixing parameters; and combining the plurality of audio tracks resulting from the processing of the plurality of audio tracks to form the mixture signal.

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