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1. 发明申请

US20080255856A1 Audio Encoding and Decoding 有权
标题翻译：音频编码和解码
公开(公告)号：US20080255856A1
公开(公告)日：2008-10-16
申请号：US11995538
申请日：2006-07-07
申请人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
发明人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
IPC分类号： G10L21/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： An audio encoder (109) has a hierarchical encoding structure and generates a data stream comprising one or more audio channels as well as parametric audio encoding data. The encoder (109) comprises an encoding structure processor (305) which inserts decoder tree structure data into the data stream. The decoder tree structure data comprises at least one data value indicative of a channel split characteristic for an audio channel at a hierarchical layer of the hierarchical decoder structure and may specifically specify the decoder tree structures to be applied by a decoder A decoder (115) comprises a receiver (401) which receives the data stream and a decoder structure processor (405) for generating the hierarchical decoder structure in response to the decoder tree structure data. A decode processor (403) then generates output audio channels from the data stream using the hierarchical decoder structure.
摘要翻译：音频编码器（109）具有分层编码结构，并且生成包括一个或多个音频信道以及参数音频编码数据的数据流。编码器（109）包括将解码器树结构数据插入到数据流中的编码结构处理器（305）。解码器树结构数据包括指示分层解码器结构的分级层处的音频信道的信道分离特性的至少一个数据值，并且可以具体指定要由解码器A应用的解码器树结构。解码器（115）包括接收数据流的接收机（401）和用于响应于解码器树结构数据生成分层解码器结构的解码器结构处理器（405）。解码处理器（403）然后使用分层解码器结构从数据流生成输出音频通道。

2. 发明授权

US07966191B2 Method and apparatus for generating a number of output audio channels 有权
标题翻译：用于产生多个输出音频通道的方法和装置
公开(公告)号：US07966191B2
公开(公告)日：2011-06-21
申请号：US11995538
申请日：2006-07-07
申请人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Alexander Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
发明人： Erik Gosuinus Petrus Schuijers , Gerard Herman Hotho , Heiko Purnhagen , Wolfgang Alexander Schildbach , Holger Horich , Hans Magnus Kristofer Kjorling , Karl Jonas Roden
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04S2420/03
摘要： An audio encoder (109) has a hierarchical encoding structure and generates a data stream comprising one or more audio channels as well as parametric audio encoding data. The encoder (109) comprises an encoding structure processor (305) which inserts decoder tree structure data into the data stream. The decoder tree structure data comprises at least one data value indicative of a channel split characteristic for an audio channel at a hierarchical layer of the hierarchical decoder structure and may specifically specify the decoder tree structures to be applied by a decoder. A decoder (115) comprises a receiver (401) which receives the data stream and a decoder structure processor (405) for generating the hierarchical decoder structure in response to the decoder tree structure data. A decode processor (403) then generates output audio channels from the data stream using the hierarchical decoder structure.
摘要翻译：音频编码器（109）具有分层编码结构，并且生成包括一个或多个音频信道以及参数音频编码数据的数据流。编码器（109）包括将解码器树结构数据插入到数据流中的编码结构处理器（305）。解码器树结构数据包括指示分层解码器结构的分级层处的音频信道的信道分离特性的至少一个数据值，并且可以具体指定要由解码器应用的解码器树结构。解码器（115）包括接收数据流的接收机（401）和用于响应于解码器树结构数据产生分层解码器结构的解码器结构处理器（405）。解码处理器（403）然后使用分层解码器结构从数据流生成输出音频通道。

3. 发明授权

US08150042B2 Method, device, encoder apparatus, decoder apparatus and audio system 有权
标题翻译：方法，设备，编码器装置，解码装置和音频系统
公开(公告)号：US08150042B2
公开(公告)日：2012-04-03
申请号：US11571840
申请日：2005-07-07
申请人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
发明人： Machiel Willem Van Loon , Dirk Jeroen Breebaart , Gerard Herman Hotho , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
IPC分类号： H04R5/00
CPC分类号： H04S3/02 , G10L19/008 , H04S1/007 , H04S2400/03 , H04S2420/03
摘要： Techniques are described for combining parametric multi-channel audio coding with matrixing, reconstructing a full-quality multi-channel, independent of the decoder. A stereo signal is obtained from encoding an N-channel audio signal into spatial parameters and a stereo down-mix signal having first and second stereo signals, including adding a first signal and a third signal to obtain a first output signal, the first signal having the first stereo signal modified by a first complex function, the third signal having the second stereo signal modified by a third complex function. A second signal and fourth signal are similarly added to obtain a second output signal. Complex functions are chosen such that an energy value of the difference between first signal and the second signals (fourth signal and third signals) is larger than or equal to the energy value of the sum of the first and the second signal (fourth signal and third signal).
摘要翻译：描述了将参数化多通道音频编码与矩阵相结合的技术，重建了独立于解码器的全质量多通道。通过将N声道音频信号编码为空间参数和具有第一和第二立体声信号的立体声缩混信号获得立体声信号，包括添加第一信号和第三信号以获得第一输出信号，所述第一信号具有由第一复合函数修改的第一立体声信号，具有由第三复合函数修改的第二立体声信号的第三信号。类似地添加第二信号和第四信号以获得第二输出信号。选择复数函数，使得第一信号和第二信号（第四信号和第三信号）之间的差的能量值大于或等于第一和第二信号之和的能量值（第四信号和第三信号信号）。

4. 发明授权

US08346564B2 Multi-channel audio coding 有权
标题翻译：多声道音频编码
公开(公告)号：US08346564B2
公开(公告)日：2013-01-01
申请号：US11909730
申请日：2006-03-16
申请人： Gerard Herman Hotho , Dirk Jeroen Breebaart , Erik Gosuinus Petrus Schuijers , Albertus Cornelis Den Brinker , Lars Falck Villemoes , Heiko Purnhagen , Karl Jonas Roden
发明人： Gerard Herman Hotho , Dirk Jeroen Breebaart , Erik Gosuinus Petrus Schuijers , Albertus Cornelis Den Brinker , Lars Falck Villemoes , Heiko Purnhagen , Karl Jonas Roden
IPC分类号： G10L19/00 , G10L21/04
CPC分类号： G10L19/008 , H04R2420/07 , H04S3/008
摘要： A multi-channel audio encoder (10) for encoding a multi-channel audio signal (101), e.g. a 5.1 channel audio signal, into a spatial down-mix (102), e.g. a stereo signal, and associated parameters (104, 105). The encoder (10) comprises first and second units (110, 120). The first unit (110) encodes the multi-channel audio signal (101) into the spatial down-mix (102) and parameters (104). These parameters (104) enable a multi-channel decoder (20) to reconstruct the multi-channel audio signal (203) from the spatial down-mix (102). The second unit (120) generates, from the spatial down-mix (102), parameters (105) that enable the decoder to reconstruct the spatial down-mix (202) from an alternative down-mix (103), e.g. a so-called artistic down-mix that has been manually mixed in a sound studio. In this way, the decoder (20) can efficiently deal with a situation in which an alternative down-mix (103) is received instead of the regular spatial, down-mix (102). In the decoder (20), first the spatial down-mix (202) is reconstructed from the alternative down-mix (103) and the parameters (105). Next, the spatial down-mix (202) is decoded into the multi-channel audio signal (203).
摘要翻译：一种用于对多声道音频信号（101）进行编码的多声道音频编码器（10）。 5.1声道音频信号转换成空间缩混（102）。立体声信号和相关参数（104,105）。编码器（10）包括第一和第二单元（110,120）。第一单元（110）将多声道音频信号（101）编码成空间缩混（102）和参数（104）。这些参数（104）使得多声道解码器（20）能够从空间缩混（102）重建多声道音频信号（203）。第二单元（120）从空间缩混（102）生成参数（105），使参数（105）能够使解码器从替代的下混合（103）重构空间缩混（202）。所谓的艺术混合，已经在一个健全的工作室手工混合。以这种方式，解码器（20）可以有效地处理接收替代的下混合（103）而不是常规的空间，混合（102）的情况。在解码器（20）中，首先，从替代的下混合（103）和参数（105）重构空间缩混（202）。接下来，空间缩混（202）被解码为多声道音频信号（203）。

5. 发明申请

US20080091436A1 Audio Channel Conversion 有权
标题翻译：音频通道转换
公开(公告)号：US20080091436A1
公开(公告)日：2008-04-17
申请号：US11571838
申请日：2005-07-11
申请人： Dirk Jeroen Breebaart , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
发明人： Dirk Jeroen Breebaart , Erik Gosuinus Petrus Schuijers , Heiko Purnhagen , Karl Jonas Roden
IPC分类号： G10L21/00
CPC分类号： H04S5/005 , G10L19/008
摘要： A device (1) for converting a first number (M) of input audio channels into a second, larger number (N) of output audio channels comprises: decorrelation units (3) for decomposing the input audio channels into a set of decorrelated auxiliary channels, at least one upmix unit (4) for combining the decorrelated auxiliary channels into the output audio channels, and at least one pre-processing unit (2) for pre-processing the input audio channels and feeding the pre-processed input audio channels to the decorrelation units (3). The pre-processing unit (2) and the upmix unit (4) are preferably controlled by audio parameters.
摘要翻译：用于将输入音频通道的第一数量（M）转换为第二，更大数量（N）的输出音频通道的设备（1）包括：用于将输入音频通道分解为一组去相关的辅助通道的解相关单元（3）至少一个用于将解相关辅助通道组合成输出音频通道的上混单元（4），以及至少一个预处理单元（2），用于预处理输入音频通道并将预处理的输入音频通道馈送到去相关单位（3）。预处理单元（2）和上混单元（4）优选地由音频参数控制。

6. 发明申请

US20100153097A1 MULTI-CHANNEL AUDIO CODING 有权
标题翻译：多声道音频编码
公开(公告)号：US20100153097A1
公开(公告)日：2010-06-17
申请号：US11909730
申请日：2006-03-16
申请人： Gerard Herman Hotho , Dirk Jeroen Breebart , Erik Gosuinus Petrus , Albertus Cornelis Den Brinker , Lars Falck Villemoes , Heiko Purnhagen , Karl Jonas Roden
发明人： Gerard Herman Hotho , Dirk Jeroen Breebart , Erik Gosuinus Petrus , Albertus Cornelis Den Brinker , Lars Falck Villemoes , Heiko Purnhagen , Karl Jonas Roden
IPC分类号： G10L19/00
CPC分类号： G10L19/008 , H04R2420/07 , H04S3/008
摘要： A multi-channel audio encoder (10) for encoding a multi-channel audio signal (101), e.g. a 5.1 channel audio signal, into a spatial down-mix (102), e.g. a stereo signal, and associated parameters (104, 105). The encoder (10) comprises first and second units (110, 120). The first unit (110) encodes the multi-channel audio signal (101) into the spatial down-mix (102) and parameters (104). These parameters (104) enable a multi-channel decoder (20) to reconstruct the multi-channel audio signal (203) from the spatial down-mix (102). The second unit (120) generates, from the spatial down-mix (102), parameters (105) that enable the decoder to reconstruct the spatial down-mix (202) from an alternative down-mix (103), e.g. a so-called artistic down-mix that has been manually mixed in a sound studio. In this way, the decoder (20) can efficiently deal with a situation in which an alternative down-mix (103) is received instead of the regular spatial, down-mix (102). In the decoder (20), first the spatial down-mix (202) is reconstructed from the alternative down-mix (103) and the parameters (105). Next, the spatial down-mix (202) is decoded into the multi-channel audio signal (203).
摘要翻译：一种用于对多声道音频信号（101）进行编码的多声道音频编码器（10）。 5.1声道音频信号转换成空间缩混（102）。立体声信号和相关参数（104,105）。编码器（10）包括第一和第二单元（110,120）。第一单元（110）将多声道音频信号（101）编码成空间缩混（102）和参数（104）。这些参数（104）使得多声道解码器（20）能够从空间缩混（102）重建多声道音频信号（203）。第二单元（120）从空间缩混（102）生成参数（105），使参数（105）能够使解码器从替代的下混合（103）重构空间缩混（202）。所谓的艺术混合，已经在一个健全的工作室手工混合。以这种方式，解码器（20）可以有效地处理接收替代的下混合（103）而不是常规的空间，混合（102）的情况。在解码器（20）中，首先，从替代的下混合（103）和参数（105）重构空间缩混（202）。接下来，空间缩混（202）被解码为多声道音频信号（203）。

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