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21. 发明授权

US10070241B2 Audio signal processing method and apparatus 有权
公开(公告)号：US10070241B2
公开(公告)日：2018-09-04
申请号：US15795180
申请日：2017-10-26
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee , Jinsam Kwak , Juhyung Son
IPC分类号： H04S3/00 , G10L19/20
摘要： The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesize an object signal and a channel signal and effectively perform binaural rendering of the synthesized signal.To this end, provided are a method for processing an audio signal, which includes: receiving an input audio signal including a multi-channel signal; receiving truncated subband filter coefficients for filtering the input audio signal, the truncated subband filter coefficients being at least some of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal and the length of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using reverberation time information extracted from the corresponding subband filter coefficients; obtaining vector information indicating the BRIR filter coefficients corresponding to each channel of the input audio signal; and filtering each subband signal of the multi-channel signal by using the truncated subband filter coefficients corresponding to the relevant channel and subband based on the vector information and an apparatus for processing an audio signal by using the same.

22. 发明授权

US09832585B2 Audio signal processing method and apparatus 有权
公开(公告)号：US09832585B2
公开(公告)日：2017-11-28
申请号：US15124029
申请日：2015-03-19
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee , Jinsam Kwak , Juhyung Son
IPC分类号： H04S3/00 , G10L19/20
CPC分类号： H04S3/008 , G10L19/20 , H04S2400/01 , H04S2400/03 , H04S2400/11 , H04S2420/01 , H04S2420/07
摘要： The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesize an object signal and a channel signal and effectively perform binaural rendering of the synthesized signal.To this end, provided are a method for processing an audio signal, which includes: receiving an input audio signal including a multi-channel signal; receiving truncated subband filter coefficients for filtering the input audio signal, the truncated subband filter coefficients being at least some of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal and the length of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using reverberation time information extracted from the corresponding subband filter coefficients; obtaining vector information indicating the BRIR filter coefficients corresponding to each channel of the input audio signal; and filtering each subband signal of the multi-channel signal by using the truncated subband filter coefficients corresponding to the relevant channel and subband based on the vector information and an apparatus for processing an audio signal by using the same.

23. 发明授权

US09584943B2 Method and apparatus for processing audio signals 有权
公开(公告)号：US09584943B2
公开(公告)日：2017-02-28
申请号：US15145822
申请日：2016-05-04
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee
IPC分类号： H04R5/02 , H04S5/00 , H04S3/00 , G10L19/008 , H03H17/02 , H04R5/04 , H04S7/00 , H03H21/00 , G10L19/02 , H04S3/02 , G10L25/48
CPC分类号： H04S5/005 , G10L19/008 , G10L19/0204 , G10L25/48 , H03H17/0229 , H03H17/0248 , H03H17/0266 , H03H17/0272 , H03H21/0012 , H04R5/04 , H04S3/00 , H04S3/002 , H04S3/008 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03 , H04S2420/07 , H04S2420/11
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing an audio signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing binaural rendering for reproducing multi-channel or multi-object audio signals in stereo with a low calculation amount.To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from a binaural room impulse response (BRIR) filter coefficient for binaural filtering of the multi-audio signals, and the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients; and filtering the subband signal by using the truncated subband filter coefficients corresponding to each subband signal of the multi-audio signals and an apparatus for processing an audio signal using the same.

24. 发明授权

US11622218B2 Method and apparatus for processing multimedia signals 有权
公开(公告)号：US11622218B2
公开(公告)日：2023-04-04
申请号：US17367629
申请日：2021-07-06
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , GCOA CO., LTD.
发明人： Hyunoh Oh , Taegyu Lee
IPC分类号： H04S5/00 , H04S3/00 , H03H17/02 , G10L19/02 , G10L25/48 , G10L19/008 , H04R5/04 , H04S7/00 , H03H21/00 , H04S3/02
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing a multimedia signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing filtering for multimedia signal having a plurality of subbands with a low calculation amount.
To this end, provided are a method for processing a multimedia signal including: receiving a multimedia signal having a plurality of subbands; receiving at least one proto-type filter coefficients for filtering each subband signal of the multimedia signal; converting the proto-type filter coefficients into a plurality of subband filter coefficients; truncating each subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and filtering the multimedia signal by using the truncated subband filter coefficients corresponding to each subband signal and an apparatus for processing a multimedia signal using the same.

25. 发明授权

US11096000B2 Method and apparatus for processing multimedia signals 有权
公开(公告)号：US11096000B2
公开(公告)日：2021-08-17
申请号：US16581782
申请日：2019-09-25
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee
IPC分类号： H04S5/00 , H04S3/00 , H03H17/02 , G10L19/02 , G10L25/48 , G10L19/008 , H04R5/04 , H04S7/00 , H03H21/00 , H04S3/02
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing a multimedia signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing filtering for multimedia signal having a plurality of subbands with a low calculation amount.
To this end, provided are a method for processing a multimedia signal including: receiving a multimedia signal having a plurality of subbands; receiving at least one proto-type filter coefficients for filtering each subband signal of the multimedia signal; converting the proto-type filter coefficients into a plurality of subband filter coefficients; truncating each subband filter coefficients based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients, the length of at least one truncated subband filter coefficients being different from the length of truncated subband filter coefficients of another subband; and filtering the multimedia signal by using the truncated subband filter coefficients corresponding to each subband signal and an apparatus for processing a multimedia signal using the same.

26. 发明授权

US10321254B2 Audio signal processing method and apparatus 有权
公开(公告)号：US10321254B2
公开(公告)日：2019-06-11
申请号：US16105945
申请日：2018-08-20
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee , Jinsam Kwak , Juhyung Son
IPC分类号： H04S3/00 , G10L19/20
摘要： The present invention relates to a method and an apparatus for processing an audio signal, and more particularly, to a method and an apparatus for processing an audio signal, which synthesize an object signal and a channel signal and effectively perform binaural rendering of the synthesized signal.To this end, provided are a method for processing an audio signal, which includes: receiving an input audio signal including a multi-channel signal; receiving truncated subband filter coefficients for filtering the input audio signal, the truncated subband filter coefficients being at least some of subband filter coefficients obtained from binaural room impulse response (BRIR) filter coefficients for binaural filtering of the input audio signal and the length of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using reverberation time information extracted from the corresponding subband filter coefficients; obtaining vector information indicating the BRIR filter coefficients corresponding to each channel of the input audio signal; and filtering each subband signal of the multi-channel signal by using the truncated subband filter coefficients corresponding to the relevant channel and subband based on the vector information and an apparatus for processing an audio signal by using the same.

27. 发明授权

US10158965B2 Method for generating filter for audio signal, and parameterization device for same 有权
公开(公告)号：US10158965B2
公开(公告)日：2018-12-18
申请号：US15789960
申请日：2017-10-21
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Taegyu Lee , Hyunoh Oh
IPC分类号： H04R5/00 , H04S7/00 , G10L19/008 , H04S3/00 , G10L19/02
摘要： The present invention relates to a method for generating a filter for an audio signal and a parameterization device for the same, and more particularly, to a method for generating a filter for an audio signal, to implement filtering of an input audio signal with a low computational complexity, and a parameterization device therefor.To this end, provided are a method for generating a filter for an audio signal, including: receiving at least one binaural room impulse response (BRIR) filter coefficients for binaural filtering of an input audio signal; converting the BRIR filter coefficients into a plurality of subband filter coefficients; obtaining average reverberation time information of a corresponding subband by using reverberation time information extracted from the subband filter coefficients; obtaining at least one coefficient for curve fitting of the obtained average reverberation time information; obtaining flag information indicating whether the length of the BRIR filter coefficients in a time domain is more than a predetermined value; obtaining filter order information for determining a truncation length of the subband filter coefficients, the filter order information being obtained by using the average reverberation time information or the at least one coefficient according to the obtained flag information and the filter order information of at least one subband being different from filter order information of another subband; and truncating the subband filter coefficient by using the obtained filter order information and a parameterization device therefor.

28. 发明授权

US09832589B2 Method for generating filter for audio signal, and parameterization device for same 有权
公开(公告)号：US09832589B2
公开(公告)日：2017-11-28
申请号：US15107462
申请日：2014-12-23
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Taegyu Lee , Hyunoh Oh
IPC分类号： H04R5/00 , H04S7/00 , G10L19/008 , H04S3/00 , G10L19/02
CPC分类号： H04S7/307 , G10L19/008 , G10L19/0204 , H04S3/008 , H04S7/305 , H04S2400/01 , H04S2400/03 , H04S2420/01 , H04S2420/03 , H04S2420/07
摘要： The present invention relates to a method for generating a filter for an audio signal and a parameterization device for the same, and more particularly, to a method for generating a filter for an audio signal, to implement filtering of an input audio signal with a low computational complexity, and a parameterization device therefor.To this end, provided are a method for generating a filter for an audio signal, including: receiving at least one binaural room impulse response (BRIR) filter coefficients for binaural filtering of an input audio signal; converting the BRIR filter coefficients into a plurality of subband filter coefficients; obtaining average reverberation time information of a corresponding subband by using reverberation time information extracted from the subband filter coefficients; obtaining at least one coefficient for curve fitting of the obtained average reverberation time information; obtaining flag information indicating whether the length of the BRIR filter coefficients in a time domain is more than a predetermined value; obtaining filter order information for determining a truncation length of the subband filter coefficients, the filter order information being obtained by using the average reverberation time information or the at least one coefficient according to the obtained flag information and the filter order information of at least one subband being different from filter order information of another subband; and truncating the subband filter coefficient by using the obtained filter order information and a parameterization device therefor.

29. 发明授权

US09578437B2 Method and apparatus for processing audio signals 有权
标题翻译：用于处理音频信号的方法和装置
公开(公告)号：US09578437B2
公开(公告)日：2017-02-21
申请号：US14990814
申请日：2016-01-08
申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
发明人： Hyunoh Oh , Taegyu Lee
IPC分类号： H04R5/02 , H04S5/00 , H04S3/00 , G10L19/008 , H03H17/02 , H04R5/04 , H04S7/00
CPC分类号： H04S5/005 , G10L19/008 , G10L19/0204 , G10L25/48 , H03H17/0229 , H03H17/0248 , H03H17/0266 , H03H17/0272 , H03H21/0012 , H04R5/04 , H04S3/00 , H04S3/002 , H04S3/008 , H04S3/02 , H04S7/30 , H04S2400/01 , H04S2400/03 , H04S2420/03 , H04S2420/07 , H04S2420/11
摘要： The present invention relates to a method and an apparatus for processing a signal, which are used for effectively reproducing an audio signal, and more particularly, to a method and an apparatus for processing a signal, which are used for implementing binaural rendering for reproducing multi-channel or multi-object audio signals in stereo with a low calculation amount.To this end, provided are a method for processing an audio signal including: receiving multi-audio signals including multi-channel or multi-object signals; receiving truncated subband filter coefficients for filtering the multi-audio signals, the truncated subband filter coefficients being at least a portion of subband filter coefficients obtained from a binaural room impulse response (BRIR) filter coefficient for binaural filtering of the multi-audio signals, and the lengths of the truncated subband filter coefficients being determined based on filter order information obtained by at least partially using characteristic information extracted from the corresponding subband filter coefficients; and filtering the subband signal by using the truncated subband filter coefficients corresponding to each subband signal of the multi-audio signals and an apparatus for processing an audio signal using the same.
摘要翻译：为此，提供了一种用于处理音频信号的方法，包括：接收包括多声道或多对象信号的多音频信号; 接收用于对多音频信号进行滤波的截断的子带滤波器系数，截取的子带滤波器系数是从用于多音频信号的双耳滤波的双耳室脉冲响应（BRIR）滤波器系数获得的子带滤波器系数的至少一部分，以及基于通过至少部分地使用从相应的子带滤波器系数提取的特征信息获得的滤波器顺序信息来确定截断的子带滤波器系数的长度; 以及通过使用与多音频信号的每个子带信号相对应的截断的子带滤波器系数和使用其来处理音频信号的装置来对子带信号进行滤波。

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