公开(公告)号：US20180048979A1

公开(公告)日：2018-02-15

申请号：US15674045

申请日：2017-08-10

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Jongyeul SUH ,  Ling LI

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/303 ,  H04R2227/003 ,  H04S1/007 ,  H04S3/008 ,  H04S7/305 ,  H04S2400/01 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2400/15 ,  H04S2420/01

Abstract: A method of interpolating a head-related transfer function (HRTF) and an audio output apparatus using the same are disclosed. The method includes receiving HRTF data corresponding to a point at which an altitude angle and an azimuth angle cross and receiving complementary information about a point at which the HRTF data is present, generating an HRTF interpolation signal corresponding to an altitude angle of a sound localization point, using HRTF data corresponding to two points constituting an altitude angle segment nearest the sound location point, calculating an amount of variation up to an azimuth angle θ of the sound localization point, using complementary information of two points constituting an azimuth angle segment nearest the sound localization point, and generating a final HRTF interpolation signal corresponding to the sound localization point by applying the amount of variation to the HRTF interpolation signal corresponding to the altitude angle of the sound localization point.

公开(公告)号：US20190320157A1

公开(公告)日：2019-10-17

申请号：US16454540

申请日：2019-06-27

Applicant: LG ELECTRONICS INC.

Inventor： Soojin HWANG ,  Sejin OH ,  Tung Chin LEE

IPC: H04N13/183 ,  H04N19/70 ,  H04N21/488 ,  H04N21/845 ,  H04N13/128 ,  H04N13/156 ,  H04N21/81 ,  H04N13/194 ,  H04N13/161 ,  H04N13/178 ,  H04N19/88

Abstract: The present invention suggests a method of providing subtitles for a 360 content, the method comprising: generating 360 video data captured by at least one camera; stitching the 360 video data; projecting the 360 video data to a 2D image; encoding the 2D image into a video stream; generating a 360 subtitle Supplemental Enhancement Information (SEI) message for signaling a subtitle for the 360 content; inserting the 360 subtitle SEI message into the video stream; and generating a broadcast signal including the video stream, and transmitting the broadcast signal.

公开(公告)号：US20200154225A1

公开(公告)日：2020-05-14

申请号：US16738522

申请日：2020-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Sejin OH

IPC: H04S7/00 ,  H04N21/439 ,  G06F3/01 ,  H04N21/442 ,  H04N21/854 ,  H04N21/84 ,  H04N21/81 ,  H04N21/485

Abstract: A method for decoding a bitstream by an apparatus, includes obtaining a decoded audio signal and metadata from the bitstream, the metadata comprising scene orientation information; and rendering the decoded audio signal based on the scene orientation information, wherein the scene orientation information is information for a direction of a video scene related to the decoded audio signal.

公开(公告)号：US20200107009A1

公开(公告)日：2020-04-02

申请号：US16702621

申请日：2019-12-04

Applicant: LG ELECTRONICS INC.

Inventor： Soojin HWANG ,  Sejin OH ,  Tung Chin LEE

IPC: H04N13/183 ,  H04N21/845 ,  H04N21/488 ,  H04N19/70 ,  H04N13/156 ,  H04N13/161 ,  H04N13/194 ,  H04N13/178 ,  H04N13/128 ,  H04N19/88 ,  H04N21/81

Abstract: The present invention suggests a method of providing subtitles for a 360 content, the method comprising: generating 360 video data captured by at least one camera; stitching the 360 video data; projecting the 360 video data to a 2D image; encoding the 2D image into a video stream; generating a 360 subtitle Supplemental Enhancement Information (SEI) message for signaling a subtitle for the 360 content; inserting the 360 subtitle SEI message into the video stream; and generating a broadcast signal including the video stream, and transmitting the broadcast signal.

公开(公告)号：US20200374646A1

公开(公告)日：2020-11-26

申请号：US16636188

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Sejin OH

IPC: H04S7/00 ,  G10L19/008

Abstract: A three-dimensional audio playing method and playing apparatus are disclosed. The three-dimensional audio playing method according to the present invention comprises: a decoding step of decoding a received audio signal and outputting the decoded audio signal and metadata; a room impulse response (RIR) decoding step of decoding RIR data when the RIR data is included in the received audio signal; a head-related impulse response (HRIR) generation step of generating HRIR data by using user head information when the RIR data is included in the received audio signal; a binaural room impulse response (BRIR) synthesis step of generating BRIR data by synthesizing the decoded RIR data and modeled HRIR data; and a binaural rendering step of outputting a binaural rendered audio signal by applying the generated BRIR data to the decoded audio signal. In addition, the three-dimensional audio playing method and playing apparatus, according to the present invention, support a 3DoF environment and a 6DoF environment. Moreover, the three-dimensional audio playing method and playing apparatus according to the present invention provide parameterized BRIR or RIR data. The three-dimensional audio playing method according to an embodiment of the present invention enables a more stereophonic and realistic three-dimensional audio signal to be provided.

公开(公告)号：US20180332265A1

公开(公告)日：2018-11-15

申请号：US15680901

申请日：2017-08-18

Applicant: LG ELECTRONICS INC.

Inventor： Soojin HWANG ,  Sejin OH ,  Tung Chin LEE

IPC: H04N13/00 ,  H04N21/845 ,  H04N21/488 ,  H04N19/70

CPC classification number: H04N13/183 ,  H04N13/128 ,  H04N13/156 ,  H04N13/161 ,  H04N13/178 ,  H04N13/194 ,  H04N19/70 ,  H04N19/88 ,  H04N21/4884 ,  H04N21/816 ,  H04N21/8451

Abstract: The present invention suggests a method of providing subtitles for a 360 content, the method comprising: generating 360 video data captured by at least one camera; stitching the 360 video data; projecting the 360 video data to a 2D image; encoding the 2D image into a video stream; generating a 360 subtitle Supplemental Enhancement Information (SEI) message for signaling a subtitle for the 360 content; inserting the 360 subtitle SEI message into the video stream; and generating a broadcast signal including the video stream, and transmitting the broadcast signal.

公开(公告)号：US20200162833A1

公开(公告)日：2020-05-21

申请号：US16626692

申请日：2017-11-14

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Sejin OH

IPC: H04S7/00 ,  H04R5/04 ,  G10L19/008 ,  H04R5/02 ,  H04S1/00

Abstract: The present invention pertains to an audio playback method and an audio playback apparatus in a 6DoF environment. The audio playback method of the present invention is characterised by comprising: a decoding step of decoding a received audio signal, and outputting the decoded audio signal and metadata; a modelling step of receiving input of position information of a user, checking whether the position of the user has changed from a previous position, and if the position of the user has changed, modelling binaural rendering data so as to correspond to the changed position of the user; and a rendering step of binaural-rendering the decoded audio signal using the modelled rendering data, and outputting the same as a two-channel audio signal. The audio playback method and apparatus in a 6DoF environment according to an embodiment of the present invention uses position change information of a user, changes the volume and depth of a sound source together according to the position of a user, and can thereby facilitate playback of a stereoscopic and realistic audio signal.

公开(公告)号：US20180288553A1

公开(公告)日：2018-10-04

申请号：US15860934

申请日：2018-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Sejin OH

IPC: H04S7/00 ,  H04N21/439 ,  G06F3/01

Abstract: A method for outputting an audio signal corresponding to scene orientation information is disclosed. The method includes receiving an audio signal interacting with a video, generating a decoded audio signal, object metadata, and scene orientation information through decoding, receiving external control information, and generating modified object metadata suitable for a playback environment by modifying the object metadata based on the received external control information, rendering the decoded audio signal using the modified object metadata, and modifying the rendered audio signal according to the scene orientation information.

公开(公告)号：US20180077514A1

公开(公告)日：2018-03-15

申请号：US15703266

申请日：2017-09-13

Applicant: LG ELECTRONICS INC.

Inventor： Tung Chin LEE ,  Jongyeul SUH

IPC: H04S7/00 ,  G01H7/00

CPC classification number: H04S7/306 ,  G01H7/00 ,  H04S7/304 ,  H04S2420/01

Abstract: Disclosed are a distance rendering method used for audio signal output and an audio signal output apparatus using the same. The distance rendering method includes receiving a decoded audio signal, checking whether a distance between a user and a sound image is changed, if the distance is changed, calculating a gain parameter gnew and a period parameterτnew, applied to room response modeling, based on the changed distance, so as to maintain a space characteristic, and generating room response modeling for maintaining the space characteristic even when the distance is changed, using the calculated period parameter τnew and gain parameter gnew.