公开(公告)号：EP3080803A1

公开(公告)日：2016-10-19

申请号：EP14808907.1

申请日：2014-11-28

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： NIEDERMEIER, Andreas ,  WILDE, Stephan ,  FISCHER, Daniel ,  HILDENBRAND, Matthias ,  GAYER, Marc ,  NEUENDORF, Max

IPC分类号： G10L19/24 ,  G10L19/20 ,  G10L21/038

CPC分类号： G10L19/22 ,  G10L19/022 ,  G10L19/167 ,  G10L19/20 ,  G10L19/24 ,  G10L21/038

摘要： An apparatus for decoding an encoded audio signal (101) comprising bandwidth extension control data indicating either a first harmonic bandwidth extension mode or a second non-harmonic bandwidth extension mode, comprises: an input interface (100) for receiving the encoded audio signal comprising the bandwidth extension control data indicating either the first harmonic bandwidth extension mode or the second non-harmonic bandwidth extension mode; a processor (102) for decoding the audio signal (101) using the second non-harmonic bandwidth extension mode; and a controller (104) for controlling the processor (102) to decode the audio signal using the second non-harmonic bandwidth extension mode, even when the bandwidth extension control data indicates the first harmonic bandwidth extension mode for the encoded signal.

摘要翻译： 用于编码音频信号（101）包括带宽扩展controldata表示是一次谐波带宽扩展模式或第二非谐波带宽扩展模式的解码的设备，包括：用于接收所述编码的音频信号包括所述输入接口（100） 带宽扩展controldata表示是第一谐波带宽扩展模式或者第二非谐波带宽扩展模式; 用于使用所述第二非谐波带宽扩展模式中的音频信号（101）进行解码的处理器（102）; 和用于控制所述处理器（102）使用所述第二非谐波带宽扩展模式中的音频信号进行解码，即使在带宽扩展控制数据指示用于所述经编码信号的所述第一谐波带宽扩展模式的控制器（104）。

公开(公告)号：EP2382625B1

公开(公告)日：2016-01-06

申请号：EP10720358.0

申请日：2010-01-28

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： GEIGER, Ralf, Dr. ,  LECOMTE, Jérémie ,  MULTRUS, Markus ,  NEUENDORF, Max ,  SPITZNER, Christian

IPC分类号： G10L19/022 ,  G10L19/16 ,  G10L19/24

CPC分类号： G10L19/167 ,  G10L19/0017 ,  G10L19/022 ,  G10L19/24

公开(公告)号：EP2625688B1

公开(公告)日：2014-12-03

申请号：EP11764739.6

申请日：2011-10-04

申请人： Fraunhofer Gesellschaft zur Förderung der angewandten Forschung e.V. ,  VoiceAge Corporation

发明人： MULTRUS, Markus ,  GRILL, Bernhard ,  NEUENDORF, Max ,  RETTELBACH, Nikolaus ,  FUCHS, Guillaume ,  GOURNAY, Philippe ,  LEFEBVRE, Roch ,  BESSETTE, Bruno ,  WILDE, Stephan

IPC分类号： G10L21/00 ,  G10L19/12 ,  G10L19/02

CPC分类号： G10L19/12 ,  G10L19/0204 ,  G10L21/00 ,  G10L2019/0012

公开(公告)号：EP2304723B1

公开(公告)日：2012-10-24

申请号：EP09776810.5

申请日：2009-06-23

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： NEUENDORF, Max ,  GRILL , Bernhard ,  KRAEMER, Ulrich ,  MULTRUS, Markus ,  POPP, Harald ,  RETTELBACH, Nikolaus ,  NAGEL , Frederik ,  LOHWASSER, Markus ,  GAYER, Marc ,  JANDER, Manuel ,  BACIGALUPO, Virgilio

IPC分类号： G10L19/14 ,  G10L21/02

CPC分类号： G10L21/038 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/022 ,  G10L19/20 ,  G10L21/04

公开(公告)号：EP2301024B1

公开(公告)日：2012-07-25

申请号：EP09797423.2

申请日：2009-07-06

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  VoiceAge Corporation

发明人： GRILL, Bernhard ,  BAYER, Stefan ,  FUCHS, Guillaume ,  GEYERSBERGER, Stefan ,  GEIGER, Ralf ,  HILPERT, Johannes ,  KRAEMER, Ulrich ,  LECOMTE, Jeremie ,  MULTRUS, Markus ,  NEUENDORF, Max ,  POPP, Harald ,  RETTELBACH, Nikolaus ,  LEFEBVRE, Roch ,  BESSETTE, Bruno ,  LAPIERRE, Jimmy ,  SALAMI, Redwan ,  GOURNAY, Philippe

IPC分类号： G10L19/14

CPC分类号： G10L19/173 ,  G10L19/0017 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/18 ,  G10L2019/0008

摘要： An apparatus for encoding comprises a first domain converter (510), a switchable bypass (50), a second domain converter (410), a first processor (420) and a second processor (520) to obtain an encoded audio signal having different signal portions represented by coded data in different domains, which have been coded by different coding algorithms. Corresponding decoding stages in the decoder together with a bypass for bypassing a domain converter allow the generation of a decoded audio signal with high quality and low bit rate.

公开(公告)号：EP2411976A1

公开(公告)日：2012-02-01

申请号：EP10710836.7

申请日：2010-03-22

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： DISCH, Sascha ,  NAGEL, Frederik ,  NEUENDORF, Max ,  HELMRICH, Christian ,  ZORN, Dominik

IPC分类号： G10L19/02 ,  G10L21/02

CPC分类号： G10L21/038 ,  G10L19/025 ,  G10L21/007

摘要： A device and method for manipulating an audio signal comprises a windower for generating a plurality of consecutive blocks of audio samples, the plurality of consecutive blocks comprising at least one padded block of audio samples, the padded block having padded values and audio signal values, a first converter for converting the padded block into a spectral representation having spectral values, a phase modifier for modifying phases of the spectral values to obtain a modified spectral representation and a second converter for converting the modified spectral representation into a modified time domain audio signal.

公开(公告)号：EP2311035B1

公开(公告)日：2012-01-04

申请号：EP09793882.3

申请日：2009-07-06

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： GRILL, Bernhard ,  BAYER, Stefan ,  FUCHS, Guillaume ,  GEYERSBERGER, Stefan ,  GEIGER, Ralf ,  HILPERT, Johannes ,  KRAEMER, Ulrich ,  LECOMTE, Jeremie ,  MULTRUS, Markus ,  NEUENDORF, Max ,  POPP, Harald ,  RETTELBACH, Nikolaus ,  NAGEL, Frederik ,  DISCH, Sascha ,  HERRE, Juergen ,  YOKOTANI, Yoshikazu ,  WABNIK, Stefan ,  SCHULLER, Gerald ,  HIRSCHFELD, Jens

IPC分类号： G10L19/14

CPC分类号： G10L19/173 ,  G10L19/0017 ,  G10L19/008 ,  G10L19/0212 ,  G10L19/18 ,  G10L2019/0008

摘要： An audio encoder comprises a common preprocessing stage, an information sink based encoding branch such as spectral domain encoding branch, a information source based encoding branch such as an LPC-domain encoding branch and a switch for switching between these branches at inputs into these branches or outputs of these branches controlled by a decision stage. An audio decoder comprises a spectral domain decoding branch, an LPC-domain decoding branch, one or more switches for switching between the branches and a common post-processing stage for post-processing a time-domain audio signal for obtaining a post-processed audio signal.

公开(公告)号：EP1697931B1

公开(公告)日：2011-11-02

申请号：EP05707481.7

申请日：2005-02-17

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： SCHUG, Michael ,  HILPERT, Johannes ,  GEYERSBERGER, Stefan ,  NEUENDORF, Max

IPC分类号： G10L19/02

CPC分类号： G10L19/025 ,  G10L19/002

摘要： In order to determine an estimated value related to an information unit requirement for encoding a signal, a measure (nl(b)) for the distribution of the energy in the frequency band is taken into account (102, 104, 106) as well as the permitted interference for a frequency band and energy of said frequency band. In this way, a better estimated value is obtained for the information unit requirement, such that the signal can be more efficiently and precisely encoded.

公开(公告)号：EP2380165A1

公开(公告)日：2011-10-26

申请号：EP10701639.6

申请日：2010-01-11

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： BÄCKSTRÖM, Tom ,  BAYER, Stefan ,  GEIGER, Ralf ,  NEUENDORF, Max ,  DISCH, Sascha

IPC分类号： G10L11/04

摘要： An apparatus for obtaining a parameter describing a variation of a signal characteristic of a signal on the basis of actual transform-domain parameters describing the audio signal in transform-domain comprises a parameter determinator. The parameter determinator is configured to determine one or more model parameters of a transform-domain variation model describing an evolution of the transform-domain parameters in dependence on one or more model parameters representing a signal characteristic.

公开(公告)号：EP2345030A2

公开(公告)日：2011-07-20

申请号：EP09736835.1

申请日：2009-10-07

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. ,  VoiceAge Corporation

发明人： NEUENDORF, Max ,  BAYER, Stefan ,  LECOMTE, Jérémie ,  FUCHS, Guillaume ,  ROBILLIARD, JuIien ,  RETTELBACH, Nikolaus ,  NAGEL, Frederik ,  GEIGER, RaIf ,  MULTRUS, Markus ,  GRILL, Bernhard ,  GOURNAY, Philippe ,  SALAMI, Redwan

IPC分类号： G10L19/14

CPC分类号： G10L19/24 ,  G10L19/022

摘要： An audio encoder for encoding an audio signal comprises a first coding branch (400), the first coding branch comprising a first converter (410) for converting a signal from a time domain into a frequency domain. Furthermore, the audio encoder comprises a second coding branch (500) comprising a second time/frequency converter (523). Additionally, a signal analyzer (300/525) for analyzing the audio signal is provided. The signal analyzer, on the hand, determines whether an audio portion is effective in the encoder output signal as a first encoded signal from the first encoding branch or as a second encoded signal from a second encoding branch. On the other hand, the signal analyzer determines a time/frequency resolution to be applied by the converters (410, 523) when generating the encoded signals. An output interface includes, in addition to the first encoded signal and the second encoded signal, a resolution information identifying the resolution used by the first time/frequency converter and used by the second time/frequency converter.