公开(公告)号：US20170311081A1

公开(公告)日：2017-10-26

申请号：US15644520

申请日：2017-07-07

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne

IPC: H04R5/04 ,  H04S3/00

CPC classification number: H04R5/04 ,  H04S3/002

Abstract: This invention relates to the field of multichannel audio. More particularly, the invention relates to a method for the provision of audio channels suitable for application to loudspeakers located above conventional front loudspeakers.

公开(公告)号：US09648440B2

公开(公告)日：2017-05-09

申请号：US14759182

申请日：2014-01-07

Applicant: DOLBY LABORATORIES LICENSING CORPORATION

Inventor： Brett G. Crockett ,  Christophe Chabanne ,  Mark Tuffy ,  Alan J. Seefeldt ,  C. Phillip Brown ,  Patrick Turnmire

IPC: H04R5/02 ,  H04S7/00 ,  H04R1/26 ,  H04R3/12 ,  H04R3/14 ,  H04R1/02 ,  H04R3/04

CPC classification number: H04S7/307 ,  H04R1/02 ,  H04R1/26 ,  H04R3/04 ,  H04R3/12 ,  H04R3/14 ,  H04R5/02 ,  H04R2205/024

Abstract: Embodiments are directed to speakers and circuits that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. The speaker comprises upward firing drivers to reflect sound off of the upper surface and represents a virtual height speaker. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The virtual height filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the upward-firing driver.

公开(公告)号：US09622014B2

公开(公告)日：2017-04-11

申请号：US14409440

申请日：2013-06-17

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Brett Crockett ,  Spencer Hooks ,  Alan Seefeldt ,  Nicolas R. Tsingos ,  Mark Tuffy ,  Rhonda Wilson

IPC: H04S7/00 ,  H04S3/00

CPC classification number: H04S7/305 ,  H04S3/008 ,  H04S2400/03 ,  H04S2420/03

Abstract: Embodiments are described for a method and system of rendering and playing back spatial audio content using a channel-based format. Spatial audio content that is played back through legacy channel-based equipment is transformed into the appropriate channel-based format resulting in the loss of certain positional information within the audio objects and positional metadata comprising the spatial audio content. To retain this information for use in spatial audio equipment even after the audio content is rendered as channel-based audio, certain metadata generated by the spatial audio processor is incorporated into the channel-based data. The channel-based audio can then be sent to a channel-based audio decoder or a spatial audio decoder. The spatial audio decoder processes the metadata to recover at least some positional information that was lost during the down-mix operation by upmixing the channel-based audio content back to the spatial audio content for optimal playback in a spatial audio environment.

公开(公告)号：US09544527B2

公开(公告)日：2017-01-10

申请号：US14271576

申请日：2014-05-07

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Nicolas R. Tsingos ,  Charles Q. Robinson

IPC: H04R5/02 ,  H04N5/64 ,  H04R3/12 ,  H04N5/60 ,  H04S7/00

CPC classification number: H04N5/642 ,  H04N5/60 ,  H04R3/12 ,  H04R5/02 ,  H04R2499/15 ,  H04S7/00 ,  H04S7/30 ,  H04S2400/11

Abstract: Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Abstract translation: 提供本地接近视觉线索的音频感知。 一种设备包括视频显示器，第一排音频换能器和第二排音频换能器。 第一行和第二行可以垂直设置在视频显示器的上方和下方。 第一行的音频换能器和第二排的音频换能器形成一列，以一致地产生一个可听见的信号。 通过称量列的音频换能器的输出，可听见的信号的感知发出来自视频显示的平面（例如，视觉提示的位置）。 在某些实施例中，音频换能器在周边间隔更远，以增加平面中心部分的保真度，并减小外围的保真度。

公开(公告)号：US20150223002A1

公开(公告)日：2015-08-06

申请号：US14421798

申请日：2013-08-28

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Sripal S. Mehta ,  Brett G. Crockett ,  Spencer Hooks ,  Alan Seefeldt ,  Christophe Chabanne ,  C. Phillip Brown ,  Joshua B. Lando ,  Brad Basler ,  Stewart Murrie

IPC: H04S7/00

CPC classification number: H04S7/30 ,  H04R5/02 ,  H04R27/00 ,  H04R2205/022 ,  H04R2227/003 ,  H04S7/301 ,  H04S7/307 ,  H04S2400/03 ,  H04S2400/11 ,  H04S2420/01 ,  H04S2420/03

Abstract: Embodiments are described for a system of rendering object-based audio content through a system that includes individually addressable drivers, including at least one driver that is configured to project sound waves toward one or more surfaces within a listening environment for reflection to a listening area within the listening environment; a renderer configured to receive and process audio streams and one or more metadata sets associated with each of the audio streams and specifying a playback location of a respective audio stream; and a playback system coupled to the renderer and configured to render the audio streams to a plurality of audio feeds corresponding to the array of audio drivers in accordance with the one or more metadata sets.

Abstract translation: 描述了通过包括单独可寻址驱动器的系统来呈现基于对象的音频内容的系统的实施例，该系统包括至少一个驱动器，其被配置为将声波投射到收听环境内的一个或多个表面以反射到内部的收听区域 听力环境; 配置为接收和处理音频流的一个或多个与每个音频流相关联的元数据集并且指定相应音频流的回放位置的渲染器; 以及回放系统，其耦合到所述呈现器并且被配置为根据所述一个或多个元数据集将所述音频流呈现到与所述音频驱动器阵列相对应的多个音频馈送。

公开(公告)号：US20140240610A1

公开(公告)日：2014-08-28

申请号：US14271576

申请日：2014-05-07

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Nicolas R. Tsingos ,  Charles Q. Robinson

IPC: H04N5/64 ,  H04N5/60

CPC classification number: H04N5/642 ,  H04N5/60 ,  H04R3/12 ,  H04R5/02 ,  H04R2499/15 ,  H04S7/00 ,  H04S7/30 ,  H04S2400/11

Abstract: Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column. In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Abstract translation: 提供本地接近视觉线索的音频感知。 一种设备包括视频显示器，第一排音频换能器和第二排音频换能器。 第一行和第二行可以垂直设置在视频显示器的上方和下方。 第一行的音频换能器和第二排的音频换能器形成一列，以一致地产生一个可听见的信号。 通过称量列的音频换能器的输出，可听见的信号的感知发出来自视频显示的平面（例如，视觉提示的位置）。 在某些实施例中，音频换能器在周边间隔更远，以增加平面中心部分的保真度，并减小外围的保真度。

公开(公告)号：US20130251177A1

公开(公告)日：2013-09-26

申请号：US13892507

申请日：2013-05-13

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Christophe Chabanne ,  Charles Q. Robinson ,  Nicolas R. Tsingos

IPC: H04R5/02

CPC classification number: H04N5/642 ,  H04N5/60 ,  H04R3/12 ,  H04R5/02 ,  H04R2499/15 ,  H04S7/00 ,  H04S7/30 ,  H04S2400/11

Abstract: Audio perception in local proximity to visual cues is provided. A device includes a video display, first row of audio transducers, and second row of audio transducers. The first and second rows can be vertically disposed above and below the video display. An audio transducer of the first row and an audio transducer of the second row form a column to produce, in concert, an audible signal. The perceived emanation of the audible signal is from a plane of the video display (e.g., a location of a visual cue) by weighing outputs of the audio transducers of the column In certain embodiments, the audio transducers are spaced farther apart at a periphery for increased fidelity in a center portion of the plane and less fidelity at the periphery.

Abstract translation: 提供了本地邻近视觉线索的音频感知。 一种设备包括视频显示器，第一排音频换能器和第二排音频换能器。 第一行和第二行可以垂直设置在视频显示器的上方和下方。 第一行的音频换能器和第二排的音频换能器形成一列，以一致地产生一个可听见的信号。 通过对列的音频换能器的输出进行称重，可听信号的感知发射是通过对视频显示器的平面（例如，视觉提示的位置）进行加权的。在某些实施例中，音频换能器在外围间隔更远， 在平面的中心部分增加了保真度，并且在周边具有较低的保真度。