公开(公告)号：US10979811B2

公开(公告)日：2021-04-13

申请号：US16738252

申请日：2020-01-09

申请人： DTS, Inc.

发明人： Aaron Kube Warner ,  Daekyoung Noh ,  Michael Johns

IPC分类号： H04R5/02 ,  G10L19/008 ,  H04S7/00 ,  H04R5/00

摘要： Circuitry can separate a multi-channel input signal into a center signal and a residual signal, apply time-varying center and residual gains to the center and residual signals, and combine the gain-adjusted center and residual signals to form a multi-channel audio signal. The center and residual gains are automatically determined in response to the center and residual signals so as to prevent each channel of the multi-channel audio signal from exceeding a target volume. During first times, the center and residual gains can vary synchronously so as to ensure that amplitude and phase relationships among channels in the multi-channel input signal are retained into the multi-channel audio signal. During second times, the center and residual gains can vary independently so as to reduce the energy of the residual signal compared to the center signal in the multi-channel audio signal.

公开(公告)号：US20190306626A1

公开(公告)日：2019-10-03

申请号：US16369205

申请日：2019-03-29

申请人： DTS, Inc.

发明人： Aaron Kube Warner ,  Daekyoug Noh ,  Michael Johns

IPC分类号： H04R5/02

摘要： Circuitry can separate a multi-channel input signal into a center signal and a residual signal, apply time-varying center and residual gains to the center and residual signals, and combine the gain-adjusted center and residual signals to form a multi-channel audio signal. The center and residual gains are automatically determined in response to the center and residual signals so as to prevent each channel of the multi-channel audio signal from exceeding a target volume. During first times, the center and residual gains can vary synchronously so as to ensure that amplitude and phase relationships among channels in the multi-channel input signal are retained into the multi-channel audio signal. During second times, the center and residual gains can vary independently so as to reduce the energy of the residual signal compared to the center signal in the multi-channel audio signal.

公开(公告)号：US20200154206A1

公开(公告)日：2020-05-14

申请号：US16738252

申请日：2020-01-09

申请人： DTS, Inc.

发明人： Aaron Kube Warner ,  Daekyoung Noh ,  Michael Johns

IPC分类号： H04R5/02 ,  G10L19/008

摘要： Circuitry can separate a multi-channel input signal into a center signal and a residual signal, apply time-varying center and residual gains to the center and residual signals, and combine the gain-adjusted center and residual signals to form a multi-channel audio signal. The center and residual gains are automatically determined in response to the center and residual signals so as to prevent each channel of the multi-channel audio signal from exceeding a target volume. During first times, the center and residual gains can vary synchronously so as to ensure that amplitude and phase relationships among channels in the multi-channel input signal are retained into the multi-channel audio signal. During second times, the center and residual gains can vary independently so as to reduce the energy of the residual signal compared to the center signal in the multi-channel audio signal.

公开(公告)号：US10567878B2

公开(公告)日：2020-02-18

申请号：US16369205

申请日：2019-03-29

申请人： DTS, Inc.

发明人： Aaron Kube Warner ,  Daekyoung Noh ,  Michael Johns

IPC分类号： H04R5/02 ,  G10L19/008 ,  H04S7/00 ,  H04R5/00

摘要： Circuitry can separate a multi-channel input signal into a center signal and a residual signal, apply time-varying center and residual gains to the center and residual signals, and combine the gain-adjusted center and residual signals to form a multi-channel audio signal. The center and residual gains are automatically determined in response to the center and residual signals so as to prevent each channel of the multi-channel audio signal from exceeding a target volume. During first times, the center and residual gains can vary synchronously so as to ensure that amplitude and phase relationships among channels in the multi-channel input signal are retained into the multi-channel audio signal. During second times, the center and residual gains can vary independently so as to reduce the energy of the residual signal compared to the center signal in the multi-channel audio signal.