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1. 发明公开

EP2777042A2 UPSAMPLING USING OVERSAMPLED SBR 有权转让
标题翻译：上采样BY过采样SBR
公开(公告)号：EP2777042A2
公开(公告)日：2014-09-17
申请号：EP12824688.1
申请日：2012-11-12
申请人： Dolby International AB
发明人： HOERICH, Holger , FRIEDRICH, Tobias
IPC分类号： G10L19/02
CPC分类号： G10L19/032 , G10L19/0204 , G10L19/167 , G10L19/24 , G10L19/265
摘要： An encoder (250) comprises a core encoder (252) for encoding a low frequency component of the audio signal at the signal sampling rate (fs_in) and a spectral band replication-referred to as SBR-encoding unit (153, 254) for determining a plurality of SBR parameters. A plurality of the SBR parameters is determined such that a high frequency component of the audio signal can be approximated based on the low frequency component of the audio signal and the plurality of SBR parameters. A multiplexer (155) is adapted to generate an overall bitstream comprising the core encoded bitstream, the plurality of SBR parameters and an indication of one or more SBR encoder settings applied by the SBR encoder (153, 254); wherein the generated overall bitstream does not indicate that the core encoded bitstream has been determined by encoding the low frequency component at the signal sampling rate (fs_in).

2. 发明公开

EP4158623A1 IMPROVED MAIN-ASSOCIATED AUDIO EXPERIENCE WITH EFFICIENT DUCKING GAIN APPLICATION 有权
公开(公告)号：EP4158623A1
公开(公告)日：2023-04-05
申请号：EP21725787.2
申请日：2021-05-20
申请人： Dolby International AB
发明人： POPP, Jens , SPENGER, Claus-Christian , MERPILLAT, Celine , MUELLER, Tobias , HOERICH, Holger
IPC分类号： G10L19/008 , H04S3/00

3. 发明授权

EP3078023B1 METHOD FOR BITRATE SIGNALING AND BITSTREAM FORMAT ENABLING SUCH METHOD 有权转让
公开(公告)号：EP3078023B1
公开(公告)日：2019-12-25
申请号：EP14802913.5
申请日：2014-11-27
申请人： Dolby International AB
发明人： HOERICH, Holger , GROESCHEL, Alexander , POPP, Jens , ROESSLER, Marc , SCHMIDT, Malte
IPC分类号： H04N21/236 , H04N21/6547 , G10L19/00

4. 发明授权

EP3201915B1 EFFICIENT DRC PROFILE TRANSMISSION 有权转让
公开(公告)号：EP3201915B1
公开(公告)日：2018-12-12
申请号：EP15777900.0
申请日：2015-09-29
申请人： Dolby International AB
发明人： HOERICH, Holger , KOPPENS, Jeroen
IPC分类号： G10L19/16 , H03G7/00
CPC分类号： G10L19/167 , H03G7/002 , H03G7/007 , H03G9/005 , H04N21/233
摘要： A method for decoding an encoded audio signal is described. The encoded audio signal comprises a sequence of frames, and is indicative of a plurality of different dynamic range control (DRC) profiles for a corresponding plurality of different rendering modes. The method comprises determining a first rendering mode from the plurality of different rendering modes; determining one or more DRC profiles from a subset of DRC profiles comprised within a current frame of the sequence of frames; determining whether at least one of the one or more DRC profiles is applicable to the first rendering mode; selecting a default DRC profile as a current DRC profile, if none of the one or more DRC profiles is applicable to the first rendering mode; wherein definition data of the default DRC profile is known at a decoder; and decoding the current frame using the current DRC profile.

5. 发明公开

EP3210206A1 ENCODING AND DECODING OF AUDIO SIGNALS 有权转让
标题翻译：音频信号的编码和解码
公开(公告)号：EP3210206A1
公开(公告)日：2017-08-30
申请号：EP15784396.2
申请日：2015-10-23
申请人： Dolby International AB
发明人： KJOERLING, Kristofer , GROESCHEL, Alexander , PURNHAGEN, Heiko , HOERICH, Holger , KRAUSS, Kurt
IPC分类号： G10L19/16 , G10L19/022
CPC分类号： G10L19/173 , G10L19/022 , G10L19/167 , H04N21/2335 , H04N21/23418
摘要： An audio signal (X) is represented by a bitstream (B) segmented into frames. An audio processing system (500) comprises a buffer (510) and a decoding section (520). The buffer joins sets of audio data (D1; D2, . . . , DN) carried by N respective frames (F1, F2, . . . , FN) into one decodable set of audio data (D) corresponding to a first frame rate and to a first number of samples of the audio signal per frame. The frames have a second frame rate corresponding to a second number of samples of the audio signal per frame. The first number of samples is N times the second number of samples. The decoding section decodes the decodable set of audio data into a segment of the audio signal by at least employing signal synthesis, based on the decodable set of audio data, with a stride corresponding to the first number of samples of the audio signal.
摘要翻译：音频信号（X）由分成帧的比特流（B）表示。音频处理系统（500）包括缓冲器（510）和解码部分（520）。缓冲器将由N个相应帧（F1，F2，...，FN）携带的音频数据组（D1，D2，...，DN）组合成对应于第一帧速率的一个可解码音频数据组以及每帧音频信号的第一数量的样本。帧具有对应于每帧音频信号的第二采样数量的第二帧频。第一个样本数是第二个样本数的N倍。解码部分通过至少采用基于可解码音频数据集合的信号合成，将音频数据的可解码集合解码为音频信号的一部分，其步长对应于音频信号的第一采样数量。

6. 发明公开

EP4044180A1 DECODING AN ENCODED AUDIO SIGNAL USING DRC PROFILES 有权转让
公开(公告)号：EP4044180A1
公开(公告)日：2022-08-17
申请号：EP22159881.6
申请日：2015-09-29
申请人： Dolby International AB
发明人： HOERICH, Holger , KOPPENS, Jeroen
IPC分类号： G10L19/26 , G10L21/0364 , G10L19/16 , H03G7/00
摘要： Decoding an encoded audio signal comprising frames of encoded audio data and metadata, the metadata including different dynamic range control, DRC, gains. Decoding according to a DRC gain profile corresponding to a desired output reference level. Determining a loudness related gain based on the indication of the loudness level of the audio signal and the desired output reference level. Applying the loudness related gain to obtain loudness adjusted audio data that has the desired output reference level.

7. 发明公开

EP3764248A1 METHOD AND DEVICE FOR PERSONALIZATION OF MEDIA DATA FOR PLAYBACK 审中-实审转让
公开(公告)号：EP3764248A1
公开(公告)日：2021-01-13
申请号：EP20184176.4
申请日：2020-07-06
申请人： Dolby International AB
发明人： SCHILDBACH, Wolfgang A. , FERSCH, Christof , HOERICH, Holger
IPC分类号： G06F16/48 , G06F16/957 , H04N21/00
摘要： Described herein is a method for processing of media data for playback, wherein the method includes the steps of: (a) fetching, by a web proxy, from two or more media servers media data and a media manifest file including metadata information relating to the fetched media data, and merging, by the web proxy, the media data; (b) modifying, by said web proxy, the content of the media manifest file and/or the content of the media data; and (c) providing, by said web proxy, the media manifest file and the media data as modified in step (b) to a media retrieval element for receiving and processing the media manifest file and the media data for decoding or playback, wherein a localhost address is assigned to the web proxy and the web proxy acts as a server for said media retrieval element. Described are further a respective device and computer program product.

8. 发明公开

EP3736809A1 DECODING AN ENCODED AUDIO SIGNAL USING DRC PROFILES 有权转让
公开(公告)号：EP3736809A1
公开(公告)日：2020-11-11
申请号：EP20177137.5
申请日：2015-09-29
申请人： Dolby International AB
发明人： HOERICH, Holger , KOPPENS, Jeroen
IPC分类号： G10L19/16 , H03G7/00 , G10L21/0364 , G10L19/26
摘要： A method for decoding an encoded audio signal is described. The encoded audio signal comprises a sequence of frames, and is indicative of a plurality of different dynamic range control (DRC) profiles for a corresponding plurality of different rendering modes. The method comprises determining a first rendering mode from the plurality of different rendering modes; determining one or more DRC profiles from a subset of DRC profiles comprised within a current frame of the sequence of frames; determining whether at least one of the one or more DRC profiles is applicable to the first rendering mode; selecting a default DRC profile as a current DRC profile, if none of the one or more DRC profiles is applicable to the first rendering mode; wherein definition data of the default DRC profile is known at a decoder; and decoding the current frame using the current DRC profile.

9. 发明授权

EP3044876B1 DYNAMIC RANGE CONTROL FOR A WIDE VARIETY OF PLAYBACK ENVIRONMENTS 有权转让
公开(公告)号：EP3044876B1
公开(公告)日：2019-04-10
申请号：EP14771712.8
申请日：2014-09-08
申请人： Dolby Laboratories Licensing Corporation , Dolby International AB
发明人： KOPPENS, Jeroen , RIEDMILLER, Jeffrey , KJOERLING, Kristofer , GROESCHEL, Alexander , HOERICH, Holger , SEEFELDT, Alan J.
IPC分类号： H03G7/00 , G10L19/16 , H03G9/00

10. 发明公开

EP3116194A1 APPARATUS FOR GENERATING AND INTERPRETING A DATA STREAM WITH SEGMENTS HAVING SPECIFIED ENTRY POINTS 有权转让
标题翻译：设备生成和数据流的解释与某些入口点SEGMENTS
公开(公告)号：EP3116194A1
公开(公告)日：2017-01-11
申请号：EP16181756.4
申请日：2006-05-30
申请人： Dolby International AB , SK Telecom. Co., Ltd.
发明人： EHRET, Andreas , HOERICH, Holger , SCHUG, Michael , SCHNEIDER, Andreas
IPC分类号： H04L29/06 , H04L1/00
CPC分类号： H04L65/602 , H04L1/0083 , H04L29/06027 , H04L65/607
摘要： An apparatus for generating a data stream having a series of segments using data organized in subsequent data frames. The apparatus comprises a packetiser for packetising data from a data frame into the series of segments having a first segment and a second segment, where the second segment has interpretable data entities and has a data entity fragment, the data entity fragment including only a part of an interpretable data entity preceding an interpretable data entity. The apparatus comprises furthermore an information block adder for adding an information block associated with the second segment, the information block indicating an entry point into the second segment, the entry point indicating a start of the interpretable data entity following the data entity fragment.
摘要翻译：用于产生具有一系列使用在随后的数据帧组织的数据段的数据流的装置。该装置包括用于分组从数据帧伊辛数据转换成一系列具有第一区段和第二区段，其中第二区段具有可解释的数据实体和具有数据实体片段，该数据实体片段仅包括的一部分区段的分组化可解释数据实体的解释数据实体preceding-。该装置进一步的信息块加法器包括用于将与所述第二分段相关联的信息块，所述信息块指示的进入点到所述第二区段，该条目点表示可解释的数据实体的继数据实体片段的开始。

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