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1. 发明申请

WO2016016190A1 HARMONICITY-DEPENDENT CONTROLLING OF A HARMONIC FILTER TOOL 审中-公开
标题翻译：谐波滤波器工具的谐波相关控制
公开(公告)号：WO2016016190A1
公开(公告)日：2016-02-04
申请号：PCT/EP2015/067160
申请日：2015-07-27
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN-NUERNBERG
发明人： MARKOVIC, Goran , HELMRICH, Christian , RAVELLI, Emmanuel , JANDER, Manuel , DÖHLA, Stefan
IPC分类号： G10L19/26
CPC分类号： G10L19/265 , G10L19/025 , G10L19/028 , G10L19/12 , G10L19/22 , G10L19/26 , G10L25/21 , G10L25/90
摘要： The coding efficiency of an audio codec using a controllable - switchable or even adjustable - harmonic filter tool is improved by performing the harmonicity-dependent controlling of this tool using a temporal structure measure in addition to a measure of harmonicity in order to control the harmonic filter tool. In particular, the temporal structure of the audio signal is evaluated in a manner which depends on the pitch. This enables to achieve a situation- adapted control of the harmonic filter tool so that in situations where a control made solely based on the measure of harmonicity would decide against or reduce the usage of this tool, although using the harmonic filter tool would, in that situation, increase the coding efficiency, the harmonic filter tool is applied, while in other situations where the harmonic filter tool may be inefficient or even destructive, the control reduces the appliance of the harmonic filter tool appropriately.
摘要翻译：使用可控切换或甚至可调谐的谐波滤波器工具的音频编解码器的编码效率通过使用除谐波度量之外的时间结构测量来执行该工具的谐波依赖性控制来提高，以便控制谐波滤波器工具。特别地，以取决于音调的方式来评估音频信号的时间结构。这使得能够实现对谐波滤波器工具的情况调整的控制，使得在仅基于谐波度量的控制仅决定反对或减少该工具的使用的情况下，尽管使用谐波滤波器工具情况，提高编码效率，应用谐波滤波器工具，而在谐波滤波器工具可能无效甚至破坏的其他情况下，控制可以适当降低谐波滤波器的用途。

2. 发明申请

WO2014202647A1 JITTER BUFFER CONTROL, AUDIO DECODER, METHOD AND COMPUTER PROGRAM 审中-公开
标题翻译：抖动缓冲器控制，音频解码器，方法和计算机程序
公开(公告)号：WO2014202647A1
公开(公告)日：2014-12-24
申请号：PCT/EP2014/062789
申请日：2014-06-18
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： REUSCHL, Stefan , DÖHLA, Stefan , LECOMTE, Jérémie , JANDER, Manuel
IPC分类号： H04J3/06 , G10L21/04
CPC分类号： G10L19/022 , G10L19/012 , G10L19/04 , G10L21/04 , H04J3/0632 , H04J3/0664
摘要： A jitter buffer control for controlling a provision of a decoded audio content on the basis of an input audio content is configured to select a frame-based time scaling or a sample-based time scaling in a signal-adaptive manner. An audio decoder uses such a jitter buffer control.
摘要翻译：基于输入音频内容控制解码音频内容的提供的抖动缓冲器控制被配置为以信号自适应方式选择基于帧的时间缩放或基于采样的时间缩放。音频解码器使用这种抖动缓冲器控制。

3. 发明申请

WO2014118152A1 LOW-FREQUENCY EMPHASIS FOR LPC-BASED CODING IN FREQUENCY DOMAIN 审中-公开
标题翻译：用于频域中基于LPC的编码的低频演进
公开(公告)号：WO2014118152A1
公开(公告)日：2014-08-07
申请号：PCT/EP2014/051585
申请日：2014-01-28
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： DÖHLA, Stefan , GRILL, Bernhard , HELMRICH, Christian , RETTELBACH, Nikolaus
IPC分类号： G10L19/02 , G10L19/26 , G10L19/08
CPC分类号： G10L19/087 , G10L19/0212 , G10L19/06 , G10L19/08 , G10L19/16 , G10L19/26 , G10L19/265
摘要： The invention provides an audio encoder and method for encoding a non-speech audio signal so as to produce therefrom a bitstream, the audio encoder comprising: a combination (2, 3) of a linear predictive coding filter (2) having a plurality of linear predictive coding coefficients (LC) and a time-frequency converter (3), wherein the combination (2, 3) is configured to filter and to convert a frame (Fl) of the audio signal (AS) into a frequency domain in order to output a spectrum (SP) based on the frame (Fl) and on the linear predictive coding coefficients (LC); a low frequency emphasizer (4) configured to calculate a processed spectrum (PS) based on the spectrum (SP), wherein spectral lines (SL) of the processed spectrum (PS) representing a lower frequency than a reference spectral line (RSL) are emphasized; and a control device (5) configured to control the calculation of the processed spectrum (PS) by the low frequency emphasizer (4) depending on the linear predictive coding coefficients (LC) of the linear predictive coding filter (2). Furthermore, the invention provides a corresponding audio decoder, a system, a method for decoding a bitstream containing quantized spectrums and a plurality of linear predictive coding coefficients and a corresponding computer program.
摘要翻译：本发明提供了一种音频编码器和方法，用于对非语音音频信号进行编码，从而产生比特流，音频编码器包括：线性预测编码滤波器（2）的组合（2,3），具有多个线性预测编码系数（LC）和时间 - 频率转换器（3），其中所述组合（2,3）被配置为过滤并将所述音频信号（AS）的帧（F1）转换成频域，以便基于帧（F1）和线性预测编码系数（LC）输出频谱（SP）; 配置成基于频谱（SP）计算处理频谱（PS）的低频增强器（4），其中表示比参考谱线（RSL）低的频率的处理频谱（PS）的频谱线（SL）是强调; 以及控制装置（5），其被配置为根据所述线性预测编码滤波器（2）的线性预测编码系数（LC）来控制所述低频增强器（4）对所述处理频谱（PS）的计算。此外，本发明提供了相应的音频解码器，系统，用于解码包含量化频谱的比特流和多个线性预测编码系数的方法以及相应的计算机程序。

4. 发明申请

WO2011144615A2 TRANSPORTSTROM-BEREITSTELLER, DAB-SIGNAL-BEREITSTELLER, TRANSPORTSTROM- ANALYSIERER, DAB-EMPFÄNGER, VERFAHREN, COMPUTERPROGRAMM UND TRANSPORTSTROM-SIGNAL 审中-公开
标题翻译：传输流供应商，DAB信号提供商，传输流分析仪，DAB接收机，方法，计算机程序和运输流量信号
公开(公告)号：WO2011144615A2
公开(公告)日：2011-11-24
申请号：PCT/EP2011/057975
申请日：2011-05-17
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , BARTEL-KURZ, Birgit , DÖHLA, Stefan , PROSCH, Markus
发明人： BARTEL-KURZ, Birgit , DÖHLA, Stefan , PROSCH, Markus
CPC分类号： H04N21/4405 , H04H60/15 , H04N21/236 , H04N21/2362 , H04N21/266 , H04N21/26606 , H04N21/4381 , H04N21/43853 , H04N21/442 , H04N21/4623 , H04N21/4627 , H04N21/647 , H04N21/8352
摘要： Ein Transportstrom-Bereitsteller zum Bereitstellen einer Mehrzahl von Transportstrom-Paketen, die eine digitale Medieninformation beschreiben, ist ausgelegt, um ein Transportstrom-Paket eines ersten Pakettyps mit einer Programmzuordnungstabelle und einer Schlüsselinformation zur Entschlüsselung einer verschlüsselten Medieninformation bereitzustellen. Die Programmzuordnungstabelle enthält eine Zuordnung zwischen einer Programmnummer und einem Pakettyp-Identifizierer eines weiteren Transportstrom-Pakets eines zweiten Pakettyps. Der Transportstrom-Bereitsteller ist ausgelegt, um ein Transportstrom-Paket des zweiten Pakettyps so bereitzustellen, dass das Transportstrom-Paket des zweiten Pakettyps einen Verweis auf Pakettyp-Identifizierer von Transportstrom-Nutzdaten-Paketen enthält, die Inhalte verschiedener Inhaltstypen der digitalen Medieninformation beschreiben.
摘要翻译：用于提供多个描述的数字媒体信息的传输流分组的传输数据流提供者的目的是提供与节目关联表和用于加密的媒体信息解密的密钥信息的第一分组类型的TS分组。节目关联表包括节目号和第二分组类型的另一TS分组的分组类型标识符之间的映射。传输流提供器被配置以提供第二分组类型的TS分组，使得第二分组类型的传输流分组包含对传输流的有效载荷的分组的分组类型标识符的引用描述各种内容类型的数字媒体信息的内容。

5. 发明申请

WO2011128342A1 METHOD AND ENCODER AND DECODER FOR GAP - LESS PLAYBACK OF AN AUDIO SIGNAL 审中-公开
标题翻译：用于GAP的方法和编码器和解码器 - 音频信号的较少回放
公开(公告)号：WO2011128342A1
公开(公告)日：2011-10-20
申请号：PCT/EP2011/055728
申请日：2011-04-12
申请人： FRAUNHOFER GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , DÖHLA, Stefan , SPERSCHNEIDER, Ralf
发明人： DÖHLA, Stefan , SPERSCHNEIDER, Ralf
IPC分类号： G10L19/14
CPC分类号： G10L19/167
摘要： A method for providing information on the validity of encoded audio data is disclosed, the encoded audio data being a series of coded audio data units. Each coded audio data unit can contain information on the valid audio data. The method comprises: providing either information on a coded audio data level which describes the amount of data at the beginning of an audio data unit being invalid, or providing information on a coded audio data level which describes the amount of data at the end of an audio data unit being invalid, or providing information on a coded audio data level which describes both the amount of data at the beginning and the end of an audio data unit being invalid. A method for receiving encoded data including information on the validity of data and providing decoded output data is also disclosed. Furthermore, a corresponding encoder and a corresponding decoder are disclosed.
摘要翻译：公开了一种用于提供关于编码音频数据的有效性的信息的方法，编码音频数据是一系列编码音频数据单元。每个编码音频数据单元可以包含关于有效音频数据的信息。该方法包括：提供关于描述音频数据单元无效的开始处的数据量的编码音频数据级的信息，或者提供关于编码的音频数据级的信息，该编码音频数据级描述在音频数据单元无效，或提供关于音频数据单元无效的开始和结束时的数据量的编码音频数据电平的信息。还公开了一种用于接收包括关于数据的有效性和提供解码的输出数据的信息的编码数据的方法。此外，公开了相应的编码器和对应的解码器。

6. 发明申请

WO2010069427A1 METHOD AND ENCODER FOR PROVIDING A TUNE- IN STREAM FOR AN ENCODED VIDEO STREAM AND METHOD AND DECODER FOR TUNING INTO AN ENCODED VIDEO STREAM 审中-公开
标题翻译：用于为编码的视频流提供流水线的方法和编码器以及用于调谐到编码视频流中的方法和解码器
公开(公告)号：WO2010069427A1
公开(公告)日：2010-06-24
申请号：PCT/EP2009/007649
申请日：2009-10-26
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , FUCHS, Harald , DÖHLA, Stefan , JENNEHAG, Ulf
发明人： FUCHS, Harald , DÖHLA, Stefan , JENNEHAG, Ulf
IPC分类号： H04N7/26 , H04N7/24 , H04N7/50
CPC分类号： H04N21/2383 , H04N19/107 , H04N19/132 , H04N19/164 , H04N19/172 , H04N19/174 , H04N19/61 , H04N21/23424 , H04N21/4384 , H04N21/44016
摘要： For an encoded video stream (200) a tune-in stream (202) is provided. The encoded video stream comprises a plurality of intra-coded pictures and a plurality of inter-coded pictures, wherein each picture comprises a plurality of macroblocks. The encoded video stream (200) comprises a plurality of frames, and the plurality of macroblocks of an intra-coded picture are spread among a plurality of the frames. The tune-in stream is provided and comprises a plurality of tune-in pictures (202 1 202 4 ), wherein a tune-in picture (202 1 -202 4 ) is provided for a frame of the encoded video stream (200) that comprises an intra-coded macroblock of an intra-coded picture, wherein the tune-in picture (202 1 -202 4 ) comprises the remaining intra-coded macroblocks of the intra-coded picture. Also, an encoder for providing such a tune-in stream as well as a method and a decoder for tuning into an encoded video stream are described.
摘要翻译：对于编码视频流（200），提供调入流（202）。编码视频流包括多个帧内编码图像和多个帧间编码图像，其中每个图像包括多个宏块。编码视频流（200）包括多个帧，并且帧内编码图像的多个宏块在多个帧之间分布。提供调入流并且包括多个调谐图像（20212024），其中为编码视频流（200）的帧提供调谐图像（2021-2024），其包括帧内编码帧内编码图像的宏块，其中调谐图像（2021-2024）包括帧内编码图像的剩余帧内编码宏块。此外，描述了一种用于提供这种调入流的编码器以及用于调谐到编码视频流中的方法和解码器。

7. 发明申请

WO2009003683A1 APPARATUS AND METHOD FOR PROCESSING AND READING A FILE HAVING A MEDIA DATA CONTAINER AND A METADATA CONTAINER 审中-公开
标题翻译：用于处理和读取具有媒体数据容器和元数据容器的文件的装置和方法
公开(公告)号：WO2009003683A1
公开(公告)日：2009-01-08
申请号：PCT/EP2008/005373
申请日：2008-07-01
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V. , DÖHLA, Stefan , KRÄGELOH, Stefan , FÄRBER, Nikolaus , FUCHS, Harald
发明人： DÖHLA, Stefan , KRÄGELOH, Stefan , FÄRBER, Nikolaus , FUCHS, Harald
IPC分类号： H04N7/52 , G11B27/30 , H04N5/00 , H04N7/167
CPC分类号： G11B27/10 , G11B20/00492 , G11B20/00731 , H04N7/1675 , H04N21/23614 , H04N21/2368 , H04N21/2381 , H04N21/23895 , H04N21/4307 , H04N21/4334 , H04N21/4341 , H04N21/4348 , H04N21/4363 , H04N21/4381 , H04N21/63345 , H04N21/6437 , H04N21/85406
摘要： An apparatus (600) for processing stored data packets (110; 112) in a media data container (104) and stored associated meta information in a metadata container (106), the associated meta information comprising transport timing information and location information indicating a storage location of the stored data packets in the media data container (104), the apparatus comprising a processor (602) for determining, based on the stored data packets (110; 112) and the stored associated meta information (124; 128), decoding information (604; 704) for a media payload of the stored data packets (110; 112), wherein the decoding information (604; 704) indicates at which time instant to replay which payload of the stored data packets.
摘要翻译：一种用于处理媒体数据容器（104）中的存储的数据分组（110; 112）并且在元数据容器（106）中存储相关联的元信息）的装置（600），所述相关联的元信息包括传输定时信息和指示存储存储的数据分组在媒体数据容器（104）中的位置，该装置包括一个处理器（602），用于基于存储的数据分组（110; 112）和存储的相关联的元信息（124; 128）来确定解码用于存储的数据分组（110; 112）的媒体有效载荷的信息（604; 704），其中所述解码信息（604; 704）指示在哪个时刻重放所存储的数据分组的哪个有效载荷。

8. 发明申请

WO2022022876A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING AN AUDIO SIGNAL OR FOR DECODING AN ENCODED AUDIO SCENE 审中-公开
公开(公告)号：WO2022022876A1
公开(公告)日：2022-02-03
申请号：PCT/EP2021/064576
申请日：2021-05-31
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： FUCHS, Guillaume , TAMARAPU, Archit , EICHENSEER, Andrea , KORSE, Srikanth , DÖHLA, Stefan , MULTRUS, Markus
IPC分类号： G10L19/012 , G10L19/008 , H04J3/17 , G10L19/16
摘要： There are disclosed an apparatus for generating an encoded audio scene, and an apparatus for decoding and/or processing an encoded audio scene; as well as related methods and non-transitory storage units storing instructions which, when executed by a processor, cause the processor to perform a related method. An apparatus (200) for processing an encoded audio scene (304) may comprise, in a first frame (346), a first soundfield parameter representation (316) and an encoded audio signal (346), wherein a second frame (348) is an inactive frame, the apparatus comprising: an activity detector (2200) for detecting that the second frame (348) is the inactive frame; a synthetic signal synthesizer (210) for synthesizing a synthetic audio signal (228) for the second frame (308) using the parametric description (348) for the second frame (308); an audio decoder (230) for decoding the encoded audio signal (346) for the first frame (306); and a spatial renderer (240) for spatially rendering the audio signal (202) for the first frame (306) using the first soundfield parameter representation (316) and using the synthetic audio signal (228) for the second frame (308), or a transcoder for generating a meta data assisted output format comprising the audio signal (346) for the first frame (306), the first soundfield parameter representation (316) for the first frame (306), the synthetic audio signal (228) for the second frame (308), and a second soundfield parameter representation (318) for the second frame (308).

9. 发明申请

WO2020115311A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING USING LOW-ORDER, MID-ORDER AND HIGH-ORDER COMPONENTS GENERATORS 审中-公开
公开(公告)号：WO2020115311A1
公开(公告)日：2020-06-11
申请号：PCT/EP2019/084056
申请日：2019-12-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： FUCHS, Guillaume , THIERGART, Oliver , KORSE, Srikanth , DÖHLA, Stefan , MULTRUS, Markus , KÜCH, Fabian , BOUTHÉON, Alexandre , EICHENSEER, Andrea , BAYER, Stefan
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for generating a sound field description using an input signal comprising a mono-signal or a multi-channel signal comprises: an input signal analyzer (600) for analyzing the input signal to derive direction data and diffuseness data; a low-order components generator (810) for generating a low-order sound field description from the input signal up to a predetermined order and mode, wherein the low-order components generator is configured to derive the low-order sound field description by copying or taking the input signal or performing a weighted combination of the channels of the input signal; a mid-order components generator (820) for generating a mid-order sound field description above the predetermined order or at the predetermined order and above the predetermined mode and below or at a first truncation order using a synthesis of at least one direct portion and of at least one diffuse portion using the direction data and the diffuseness data so that the mid-order sound field description comprises a direct contribution and a diffuse contribution; and a high-order components generator (830) for generating a high-order sound field description having a component above the first truncation order using a synthesis of at least one direct portion, wherein the high order sound field description comprises a direct contribution only.

10. 发明申请

WO2020115309A1 APPARATUS, METHOD AND COMPUTER PROGRAM FOR ENCODING, DECODING, SCENE PROCESSING AND OTHER PROCEDURES RELATED TO DIRAC BASED SPATIAL AUDIO CODING USING DIFFUSE COMPENSATION 审中-公开
公开(公告)号：WO2020115309A1
公开(公告)日：2020-06-11
申请号：PCT/EP2019/084053
申请日：2019-12-06
申请人： FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
发明人： FUCHS, Guillaume , THIERGART, Oliver , KORSE, Srikanth , DÖHLA, Stefan , MULTRUS, Markus , KÜCH, Fabian , BOUTHÉON, Alexandre , EICHENSEER, Andrea , BAYER, Stefan
IPC分类号： G10L19/008 , H04S7/00
摘要： An apparatus for generating a sound field description from an input signal comprising one or more channels, comprises: an input signal analyzer (600) for obtaining diffuseness data from the input signal; a sound component generator (650) for generating, from the input signal, one or more sound field components of a first group of sound field components having for each sound field component a direct component and a diffuse component, and for generating, from the input signal, a second group of sound field components having only a direct component, wherein the sound component generator is configured to perform an energy compensation when generating the first group of sound field components, the energy compensation depending on the diffuseness data and at least one of a number of sound field components in the second group, a number of diffuse components in the first group, a maximum order of sound field components of the first group and a maximum order of sound field components of the second group.

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