-
公开(公告)号：US11222645B2
公开(公告)日：2022-01-11
申请号：US16562921
申请日：2019-09-06
Inventor： Jeongil Seo , Seungkwon Beack , Kyeongok Kang , Jin Woo Hong , Jinwoong Kim , Chieteuk Ahn , Kwangki Kim , Minsoo Hahn
IPC: G10L19/20 , G10L19/008
Abstract: A multi-object audio encoding and decoding apparatus supporting a post downmix signal may be provided. The multi-object audio encoding apparatus may include: an object information extraction and downmix generation unit to generate object information and a downmix signal from input object signals; a parameter determination unit to determine a downmix information parameter using the extracted downmix signal and the post downmix signal; and a bitstream generation unit to combine the object information and the downmix information parameter, and to generate an object bitstream.
-
公开(公告)号：US10580417B2
公开(公告)日：2020-03-03
申请号：US15031275
申请日：2014-10-22
Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Inventor： Taegyu Lee , Hyunoh Oh , Youngcheol Park , Daehee Youn , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang
IPC: G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.
-
公开(公告)号：US10692508B2
公开(公告)日：2020-06-23
申请号：US16224820
申请日：2018-12-19
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the 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 generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
-
公开(公告)号：US10204630B2
公开(公告)日：2019-02-12
申请号：US15031274
申请日：2014-10-22
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.
Inventor： Taegyu Lee , Hyunoh Oh , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang , Youngcheol Park , Daehee Youn
IPC: G06F17/00 , G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for processing a signal, which are used to effectively reproduce an audio signal, and more particularly, to a method for generating a filter for an audio signal, which are used for implementing a filtering for input audio signals with a low computational complexity and a parameterization apparatus therefor.To this end, provided are a method for generating a filter of an audio signal, including: receiving at least one proto-type filter coefficient for filtering each subband signal of an input audio signal; converting the proto-type filter coefficient into a plurality of subband filter coefficients; truncating each of the 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 generating FFT filter coefficients by fast Fourier transforming (FFT) the truncated subband filter coefficients by a predetermined block size in the corresponding subband and a parameterization unit using the same.
-
公开(公告)号：US11195537B2
公开(公告)日：2021-12-07
申请号：US16747533
申请日：2020-01-21
Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Inventor： Taegyu Lee , Hyunoh Oh , Youngcheol Park , Daehee Youn , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang
IPC: G10L19/008 , H04S3/00 , H04R5/033 , H04R3/00
Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.
-
Patent Agency Ranking
公开(公告)号：US10410646B2
公开(公告)日：2019-09-10
申请号：US15625623
申请日：2017-06-16
Inventor： Jeongil Seo , Seungkwon Beack , Kyeongok Kang , Jin Woo Hong , Jinwoong Kim , Chieteuk Ahn , Kwangki Kim , Minsoo Hahn
IPC: G10L19/20 , G10L19/008
Abstract: A multi-object audio encoding and decoding apparatus supporting a post downmix signal may be provided. The multi-object audio encoding apparatus may include: an object information extraction and downmix generation unit to generate object information and a downmix signal from input object signals; a parameter determination unit to determine a downmix information parameter using the extracted downmix signal and the post downmix signal; and a bitstream generation unit to combine the object information and the downmix information parameter, and to generate an object bitstream.
-
公开(公告)号：US12014744B2
公开(公告)日：2024-06-18
申请号：US17517630
申请日：2021-11-02
Applicant: INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY , WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. , ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
Inventor： Taegyu Lee , Hyunoh Oh , Youngcheol Park , Daehee Youn , Jeongil Seo , Yongju Lee , Seungkwon Beack , Kyeongok Kang , Daeyoung Jang
IPC: G10L19/008 , H04R3/00 , H04R5/033 , H04S3/00
CPC classification number: G10L19/008 , H04R5/033 , H04S3/00 , H04S3/002 , H04S3/004 , H04S3/008 , G10H2250/111 , G10H2250/145 , H04R3/00 , H04S2400/01 , H04S2420/01 , H04S2420/03
Abstract: The present invention relates to a method and an apparatus for binaural rendering an audio signal using variable order filtering in frequency domain. To this end, provided are a method for processing an audio signal including: receiving an input audio signal; receiving a set of truncated subband filter coefficients for filtering each subband signal of the input audio signal, the set of truncated subband filter coefficients being constituted by one or more FFT filter coefficients generated by performing FFT by a predetermined block size; generating at least one subframe for each subband; generating at least one filtered subframe for each subband; performing inverse FFT on the filtered subframe for each subband; and generating a filtered subband signal by overlap-adding the transformed subframe for each subband and an apparatus for processing an audio signal using the same.
-
公开(公告)号：US11922962B2
公开(公告)日：2024-03-05
申请号：US17895256
申请日：2022-08-25
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/06 , G10L19/18 , G10L19/22
CPC classification number: G10L19/22 , G10L19/022 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
-
公开(公告)号：US11430458B2
公开(公告)日：2022-08-30
申请号：US16835728
申请日：2020-03-31
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/22 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
-
公开(公告)号：US10002619B2
公开(公告)日：2018-06-19
申请号：US15200404
申请日：2016-07-01
Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE , KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATION
Inventor： Seungkwon Beack , Tae Jin Lee , Min Je Kim , Kyeongok Kang , Dae Young Jang , Jeongil Seo , Jin Woo Hong , Chieteuk Ahn , Ho Chong Park , Young-cheol Park
IPC: G10L19/022 , G10L19/22 , G10L19/06 , G10L19/18
CPC classification number: G10L19/22 , G10L19/022 , G10L19/06 , G10L19/18
Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.017 seconds)
