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41. 发明申请

WO2002103695A2 VORRICHTUNG UND VERFAHREN ZUM EINBETTEN EINES WASSERZEICHENS IN EIN AUDIOSIGNAL 审中-公开
标题翻译：装置和方法嵌入水印的音频信号
公开(公告)号：WO2002103695A2
公开(公告)日：2002-12-27
申请号：PCT/EP2002/005173
申请日：2002-05-10
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , HERRE, Jürgen , KULESSA, Ralph , NEUBAUER, Christian , SIEBENHAAR, Frank
发明人： HERRE, Jürgen , KULESSA, Ralph , NEUBAUER, Christian , SIEBENHAAR, Frank
IPC分类号： G11B20/00
CPC分类号： G10L19/018 , G10L19/02
摘要： Zum Einbetten eines Wasserzeichens in ein Audiosignal wer-den zunächst eine spektrale Darstellung des Audiosignals und eine spektrale Darstellung des Wasserzeichensignals er-mittelt (14, 16). Hierauf wird die spektrale Darstellung des Wasserzeichensignals abhängig von einer psychoakustischen Maskierungsschwelle (24) des Audiosignals verarbeitet (22). Das verarbeitete Wasserzeichensignal wird mit dem Audiosignal kombiniert (18), um ein Wasserzeichenbehaftetes Audiosignal zu erhalten. Die Verarbeitung der spektralen Darstellung des Wasserzeichensignals wird iterativ durchgeführt, indem zunächst ein vorbestimmter Wasserzeichen-Startwert (26) gewählt wird, die durch den vorbestimmten Wasserzeichen-Startwert in die spektrale Darstellung des Audiosignals nach einer Quantisierung der spektralen Darstellung des Audiosignals eingeführte Störung ermittelt wird (28), und dann, falls die durch den Wasserzeichen-Startwert eingeführte Störung größer als die vorbestimmte Störungsschwelle ist (32), der Wasserzeichen-Startwert so lange verändert wird, bis die durch einen veränderten Wasserzeichen-Startwert in die spektrale Darstellung des Audiosignals nach der Quantisierung eingeführte Störung kleiner oder gleich der vorbestimmten Störungsschwelle ist. Der am Ende der Iteration vorhandene veränderte Wasserzeichen-Startwert wird als verarbeitetes Wasserzeichensignal zum Kombinieren mit dem Audiosignal verwendet. Dadurch ist es nicht mehr möglich, daß ein Wasserzeichen herausquantisiert wird. Statt dessen wird eine volle Steuerung über die Energie des Wasserzeichens erreicht, um ein Wasserzeichen entweder im Hinblick auf möglichst gute Wasserzeichendetektierbarkeit oder in Hinblick auf möglichst gute Audioqualität in ein Audiosignal einbetten zu können.
摘要翻译：用于嵌入水印嵌入音频信号WER-所述第一音频信号的频谱表示和水印信号ER-平均值（14,16）的频谱表示的。此后，将水印信号的响应于所述音频信号的心理声学遮蔽阈值（24）的频谱表示进行处理（22）。经处理的水印信号，与音频信号（18），以获得水印影响的音频信号相结合。处理所述水印信号的频谱表示被迭代以预定水印的初始值（26）首先被选择时，检测所述音频信号的频谱表示的量化后的音频信号的频谱表示由预定的水印的初始值引起的误差进行（ 28），然后，如果由水印初始值误差引入小于规定干扰阈值（32）时，水印初始值被在音频信号的后的频谱表示改变，直到通过改进的水印初始值大引入的量化干扰小于或等于所述规定干扰阈值。在迭代修改水印初始值的端部的现有用作与音频信号进行组合的处理的水印信号。因此，它不再是可能的水印是herausquantisiert。相反，为了能够嵌入水印无论是在最好的Wasserzeichendetektierbarkeit方面或者在音频信号最佳的音频质量方面达到了水印的能量完全控制。

42. 发明申请

WO2023083876A2 RENDERERS, DECODERS, ENCODERS, METHODS AND BITSTREAMS USING SPATIALLY EXTENDED SOUND SOURCES 审中-公开
公开(公告)号：WO2023083876A2
公开(公告)日：2023-05-19
申请号：PCT/EP2022/081304
申请日：2022-11-09
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： SCHWÄR, Simon , WU, Yun-Han , HERRE, Jürgen , GEIER, Matthias , KOROTIAEV, Mikhail
IPC分类号： H04S7/00 , G10L19/008
摘要： Embodiments according to the invention comprise a renderer for rendering, e.g. spatially rendering, an acoustic scene, wherein the renderer is configured to render, e.g. to reproduce, an acoustic impact of a diffuse sound (e.g. of a reverberation; e.g. of a late reverberation), which originates in a first spatial region (e.g. in a first Acoustically Homogenous Space, AHS; e.g. in a first room), in a second spatial region (e.g. in a second Acoustically Homogenous Space; e.g. in a second room; e.g. in a spatial region outside the first spatial region), using a spatially extended sound source, e.g. a SESS, e.g. a s a spatially extended sound source, e.g. a spatially extended sound source which reproduces the diffuse sound, e.g. using a homogenous extended sound source algorithm. Furthermore, encoders, methods and bitstreams are disclosed.

43. 发明申请

WO2023083791A1 EARLY REFLECTION PATTERN GENERATION CONCEPT FOR AURALIZATION 审中-公开
公开(公告)号：WO2023083791A1
公开(公告)日：2023-05-19
申请号：PCT/EP2022/081090
申请日：2022-11-08
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： SILZLE, Andreas , HERRE, Jürgen , ROSENBERGER, Dennis , PAULUS, Jouni , BORSS, Christian , ADAMI, Alexander
IPC分类号： H04S7/00 , G10K15/08
摘要： The present application concerns early reflection processing concepts for auralization. Embodiments relate to apparatuses and methods for sound rendering considering early reflections and to apparatuses and methods for determining an early reflection pattern.

44. 发明申请

WO2023083752A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR SYNTHESIZING A SPATIALLY EXTENDED SOUND SOURCE USING ELEMENTARY SPATIAL SECTORS 审中-公开
公开(公告)号：WO2023083752A1
公开(公告)日：2023-05-19
申请号：PCT/EP2022/080996
申请日：2022-11-07
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： WU, Yun-Han , HERRE, Jürgen , KOROTIAEV, Mikhail , GEIER, Matthias , SCHWÄR, Simon , ADAMI, Alexander , ANEMÜLLER, Carlotta
IPC分类号： H04S7/00
摘要： An apparatus for synthesizing a spatially extended sound source (SESS) (7000), comprises: a storage (200, 2000) for storing rendering data items for different elementary spatial sectors covering a rendering range for a listener; a sector identification processor (4000) for identifying, from the different elementary spatial sectors, a set of elementary spatial sectors belonging to the spatially extended sound source based on listener data and spatially extended sound source data; a target data calculator (5000) for calculating target rendering data from the rendering data items for the set of elementary spatial sectors; and an audio processor (300, 3000) for processing an audio signal representing the spatially extended sound source using the target rendering data.

45. 发明申请

WO2022248632A1 AUDIO DIRECTIVITY CODING 审中-公开
公开(公告)号：WO2022248632A1
公开(公告)日：2022-12-01
申请号：PCT/EP2022/064343
申请日：2022-05-25
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： HERRE, Jürgen , GHIDO, Florin
IPC分类号： G10L19/008 , G10L19/04 , G10L19/02
摘要： The application discloses techniques for compressively encoding and decoding an audio signal representing a directivity pattern, the audio values having different values according to different discrete positions defined on an unit sphere. The audio signal values are encoded in a bitstream as prediction residual values. The prediction residual values being used in sequences to obtained predicted audio signal values by moving on positions defined on parallel lines, parallel to an equator of the sphere, the parallel lines defined from a first pole toward a second pole of the sphere. The predicted values are obtained based on an initial prediction sequence, on adjacent discrete positions preceding a given position or interpolated versions of the audio values of a previously predicted adjacent parallel line.

46. 发明申请

WO2022079044A1 APPARATUS AND METHOD FOR ENCODING A PLURALITY OF AUDIO OBJECTS USING DIRECTION INFORMATION DURING A DOWNMIXING OR APPARATUS AND METHOD FOR DECODING USING AN OPTIMIZED COVARIANCE SYNTHESIS 审中-公开
公开(公告)号：WO2022079044A1
公开(公告)日：2022-04-21
申请号：PCT/EP2021/078209
申请日：2021-10-12
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： EICHENSEER, Andrea , KORSE, Srikanth , BAYER, Stefan , KÜCH, Fabian , THIERGART, Oliver , FUCHS, Guillaume , WECKBECKER, Dominik , HERRE, Jürgen , MULTRUS, Markus
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for encoding a plurality of audio objects and related metadata indicating direction information on the plurality of audio objects, comprises: a downmixer (400) for downmixing the plurality of audio objects to obtain one or more transport channels; a transport channel encoder (300) for encoding one or more transport channels to obtain one or more encoded transport channels; and an output interface (200) for outputting an encoded audio signal comprising the one or more encoded transport channels, wherein the downmixer (400) is configured to downmix the plurality of audio objects in response to the direction information on the plurality of audio objects.

47. 发明申请

WO2020084170A1 DIRECTIONAL LOUDNESS MAP BASED AUDIO PROCESSING 审中-公开
公开(公告)号：WO2020084170A1
公开(公告)日：2020-04-30
申请号：PCT/EP2019/079440
申请日：2019-10-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： HERRE, Jürgen , DELGADO, Pablo Manuel , DICK, Sascha
IPC分类号： G10L25/03 , G10L25/60 , G10L19/16 , G10L19/008
摘要： An audio analyzer configured to obtain spectral domain representations of two or more input audio signals. Additionally the audio analyzer is configured to obtain directional information associated with spectral bands of the spectral domain representations and to obtain loudness information associated with different directions as an analysis result. Contributions to the loudness information are determined in dependence on the directional information.

48. 发明申请

WO2020030303A1 AN AUDIO PROCESSOR AND A METHOD FOR PROVIDING LOUDSPEAKER SIGNALS 审中-公开
公开(公告)号：WO2020030303A1
公开(公告)日：2020-02-13
申请号：PCT/EP2019/053468
申请日：2019-02-12
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： WALTHER, Andreas , HERRE, Jürgen , KLAPP, Julian , FALLER, Christof , SCHMIDT, Markus
IPC分类号： H04S7/00 , H04R27/00
摘要： An audio processor for providing a plurality of loudspeaker signals, or loudspeaker feeds, on the basis of a plurality of input signals, like channeled signals and/or object signals. The audio processor is configured to obtain an information about the position of a listener. The audio processor is further configured to obtain an information about the position of a plurality of loudspeakers, or sound transducers, which may be placed within the same containment, e.g. a soundbar. The audio processor is further configured to dynamically adapt an allocation of objects and/or channel objects and/or adapted signals, like adapted channel signals, derived from the input signals, like channel signals or channel objects, or like upmixed or downmixed signals, to loudspeakers. The adaptation of the location depends on the information about the position of the listener and on the information about the positions of the loudspeakers. In other words, the audio processor decides which loudspeakers should be used in the rendering of the different channel objects or adapted signals. The audio signal processor is further configured to render the objects and/or the channel objects and/or the adapted signals derived from the input signals, in dependence on the information about the position of the listener, on the information about positions of the loudspeakers and in dependence on the allocation, in order to obtain the loudspeaker signals, such that a rendered sound follows a listener.

49. 发明申请

WO2019012135A1 CONCEPT FOR GENERATING AN ENHANCED SOUND-FIELD DESCRIPTION OR A MODIFIED SOUND FIELD DESCRIPTION USING A DEPTH-EXTENDED DIRAC TECHNIQUE OR OTHER TECHNIQUES 审中-公开
公开(公告)号：WO2019012135A1
公开(公告)日：2019-01-17
申请号：PCT/EP2018/069147
申请日：2018-07-13
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： HERRE, Jürgen , HABETS, Emanuel
IPC分类号： G10L19/008 , H04S7/00 , G06F3/01 , G10L21/0272
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.

50. 发明申请

WO2018177611A1 APPARATUS AND METHODS FOR PROCESSING AN AUDIO SIGNAL 审中-公开
公开(公告)号：WO2018177611A1
公开(公告)日：2018-10-04
申请号：PCT/EP2018/025082
申请日：2018-03-29
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNI VERSITÄT ERLANGEN-NÜRNBERG
发明人： GAMPP, Patrick , UHLE, Christian , DISCH, Sascha , KARAMPOURNIOTIS, Antonios , HAVENSTEIN, Julia , HELLMUTH, Oliver , HERRE, Jürgen , PROKEIN, Peter
IPC分类号： G10L21/038 , G10L25/69
摘要： An apparatus for processing an audio signal comprises a separator for separating a first portion of a spectrum of the audio signal from a second portion of the spectrum of the audio signal, the first portion having a first signal characteristic and the second portion having a second signal characteristic. The apparatus comprises a first bandwidth extender for extending a bandwidth of the first portion using first parameters associated with the first signal characteristic, for obtaining a first extended portion and comprises a second bandwidth extender for extending a bandwidth of the second portion using second parameters associated with the second signal characteristic, for obtaining a second extended portion. The apparatus comprises a combiner configured for using the first extended portion and the second extended portion for obtaining an extended combined audio signal.

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