公开(公告)号：US11817108B2

公开(公告)日：2023-11-14

申请号：US17975955

申请日：2022-10-28

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias R. Wagenblass

IPC: G10L19/008 ,  G10L19/16 ,  H04S3/00

CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/03

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system configured to generate a bitstream indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system comprises a downmix processing unit configured to generate the downmix signal from a multi-channel input signal; wherein the downmix signal comprises m channels and wherein the multi-channel input signal comprises n channels; n, m being integers with m

公开(公告)号：US10360919B2

公开(公告)日：2019-07-23

申请号：US15646482

申请日：2017-07-11

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias Wagenblass

IPC: H04S3/00 ,  G10L19/16 ,  G10L19/008

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system configured to generate a bitstream indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system comprises a downmix processing unit configured to generate the downmix signal from a multi-channel input signal; wherein the downmix signal comprises m channels and wherein the multi-channel input signal comprises n channels; n, m being integers with m

公开(公告)号：US11488611B2

公开(公告)日：2022-11-01

申请号：US17177217

申请日：2021-02-17

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias R. Wagenblass

IPC: G10L19/008 ,  G10L19/16 ,  H04S3/00

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system configured to generate a bitstream indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system comprises a downmix processing unit configured to generate the downmix signal from a multi-channel input signal; wherein the downmix signal comprises m channels and wherein the multi-channel input signal comprises n channels; n, m being integers with m

公开(公告)号：US10930291B2

公开(公告)日：2021-02-23

申请号：US16864694

申请日：2020-05-01

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias R. Wagenblass

IPC: G10L19/008 ,  G10L19/16 ,  H04S3/00

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system configured to generate a bitstream indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system comprises a downmix processing unit configured to generate the downmix signal from a multi-channel input signal; wherein the downmix signal comprises m channels and wherein the multi-channel input signal comprises n channels; n, m being integers with m

公开(公告)号：US12100404B2

公开(公告)日：2024-09-24

申请号：US18505996

申请日：2023-11-09

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias R. Wagenblass

IPC: G10L19/008 ,  G10L19/16 ,  H04S3/00

CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/03

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system configured to generate a bitstream indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system comprises a downmix processing unit configured to generate the downmix signal from a multi-channel input signal; wherein the downmix signal comprises m channels and wherein the multi-channel input signal comprises n channels; n, m being integers with m

公开(公告)号：US09715880B2

公开(公告)日：2017-07-25

申请号：US14767883

申请日：2014-02-21

Applicant: DOLBY INTERNATIONAL AB

Inventor： Tobias Friedrich ,  Alexander Mueller ,  Karsten Linzmeier ,  Claus-Christian Spenger ,  Tobias R. Wagenblass

IPC: G10L19/008 ,  H04S3/00 ,  G10L19/16

CPC classification number: G10L19/008 ,  G10L19/167 ,  H04S3/008 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2420/03

Abstract: The present document relates to audio coding systems. In particular, the present document relates to efficient methods and systems for parametric multi-channel audio coding. An audio encoding system (500) configured to generate a bitstream (564) indicative of a downmix signal and spatial metadata for generating a multi-channel upmix signal from the downmix signal is described. The system (500) comprises a downmix processing unit (510) configured to generate the downmix signal from a multi-channel input signal (561); wherein the downmix signal comprises m channels and wherein the multi-channel input signal (561) comprises n channels; n, m being integers with m