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    Adaptive Audio Filtering
    41.
    发明申请
    Adaptive Audio Filtering 审中-公开

    公开(公告)号：US20180075862A1

    公开(公告)日：2018-03-15

    申请号：US15558181

    申请日：2016-03-21

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Dong SHI ,  Glenn N. DICKINS ,  David GUNAWAN ,  Xuejing SUN

    IPC: G10L21/0232 ,  G10L21/028 ,  G10L25/21

    CPC classification number: G10L21/0232 ,  G10L21/0208 ,  G10L21/028 ,  G10L25/21 ,  G10L2021/02082 ,  H04M9/082

    Abstract: In an audio processing system (300), a filtering section (350, 400): receives subband signals (410, 420, 430) corresponding to audio content of a reference signal (301) in respective frequency subbands; receives subband signals (411, 421, 431) corresponding to audio content of a response signal (304) in the respective subbands; and forms filtered inband references (412, 422, 432) by applying respective filters (413, 423, 433) to the subband signals of the reference signal. For a frequency subband: filtered crossband references (424, 425) are formed by multiplying, by scalar factors (426, 427), filtered inband references of other subbands; a composite filtered reference (428) is formed by summing the filtered inband reference of the subband (422) and the filtered crossband references; a residual signal (429) is computed as a difference between the composite filtered reference and the subband signal of the response signal corresponding to the subband; and the scalar factors and the filter applied to the subband signal of the reference signal corresponding to the subband are adjusted based on the residual signal.

    HANDLING NUISANCE IN TELECONFERENCE SYSTEM
    42.
    发明申请
    HANDLING NUISANCE IN TELECONFERENCE SYSTEM 审中-公开

    公开(公告)号：US20170353696A1

    公开(公告)日：2017-12-07

    申请号：US15544114

    申请日：2016-02-16

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Taoran LU ,  Hariharan GANAPATHY-KATHIRVELU ,  Peng YIN ,  Glenn N. DICKINS ,  Xuejing SUN

    IPC: H04N7/15 ,  H04L29/06 ,  H04M3/56 ,  H04N7/14

    CPC classification number: H04N7/152 ,  H04L65/403 ,  H04L65/80 ,  H04M3/2227 ,  H04M3/56 ,  H04M2203/5036 ,  H04N7/147 ,  H04N7/15

    Abstract: The disclosure relates to handling nuisance in teleconference system. An endpoint device (400) for use in a teleconference includes an acquiring unit (401), a judging unit (402), a controller (403) and a processing unit (404). The acquiring unit acquires a media stream for presentation in the teleconference, and receives information from another device. The information includes a first estimation on whether the media stream is a nuisance to the teleconference. As the nuisance to a teleconference, audio or video signals are perceived by users as actually not relevant to the conference session or causing unpleasant feeling or confusion. The judging unit decides whether the media stream is the nuisance at least based on the information. The controller controls the processing of the media stream to degrade or suppress the presentation of the media stream in case that the media stream is decided as the nuisance. The processing unit processes the media stream under the control of the controller.

    REPLAYING CONTENT OF A VIRTUAL MEETING
    43.
    发明申请
    REPLAYING CONTENT OF A VIRTUAL MEETING 审中-公开

    公开(公告)号：US20170208105A1

    公开(公告)日：2017-07-20

    申请号：US15407405

    申请日：2017-01-17

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Rowan James KATEKAR ,  Glenn N. DICKINS

    IPC: H04L29/06

    CPC classification number: H04L65/1083 ,  G06F17/30817 ,  H04L12/1827 ,  H04L12/1831 ,  H04L65/403

    Abstract: A method of facilitating the re-joining of a virtual meeting by a participant. The method comprises determining at what time the participant was disconnected from the virtual meeting; and determining whether or not the participant was talking within a time period containing the time at which the participant was disconnected from the virtual meeting. If it is determined that the participant was talking within the time period, then, consequently, the method comprises deciding not to enable the participant to replay stored data representative of a missed portion of the virtual meeting. As well as the method, related apparatuses, systems and computer readable storage media are disclosed.

    Switching to a Second Audio Interface Between a Computer Apparatus and an Audio Apparatus
    44.
    发明申请
    Switching to a Second Audio Interface Between a Computer Apparatus and an Audio Apparatus 审中-公开
    切换到计算机设备和音频设备之间的第二音频接口

    公开(公告)号：US20160302004A1

    公开(公告)日：2016-10-13

    申请号：US15094040

    申请日：2016-04-08

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Glenn N. DICKINS ,  Gopal ERINJIPPURATH ,  Gary SPITTLE

    IPC: H04R3/00 ,  H04R1/24 ,  H04R1/08

    CPC classification number: H04R3/00 ,  G06F13/10 ,  G09G2360/06 ,  H03G2201/40 ,  H04M1/05 ,  H04M1/6066 ,  H04R1/08 ,  H04R1/1041 ,  H04R1/24 ,  H04R3/12 ,  H04R5/033 ,  H04R2227/003 ,  H04R2420/01 ,  H04R2420/07

    Abstract: An audio apparatus is configured to switch, when there exists a first audio interface between the audio apparatus and a computer apparatus, to using a second audio interface between the audio apparatus and the computer apparatus, the second audio interface being different from the first audio interface. The switching comprises: receiving, via the first audio interface, combined audio data and non-audio data, the non-audio data comprising a request to switch to using the second audio interface; obtaining the request from the data; and, in response to obtaining the request, transmitting to the computer apparatus a confirmation of switching to using the second audio interface. The audio apparatus and the computer apparatus are described and claimed.

    Abstract translation: 音频装置被配置为当音频装置和计算机装置之间存在第一音频接口时，在音频装置和计算机装置之间使用第二音频接口，第二音频接口不同于第一音频接口 。 切换包括：通过第一音频接口接收组合的音频数据和非音频数据，非音频数据包括切换到使用第二音频接口的请求; 从数据获取请求; 并且响应于获得所述请求，向所述计算机设备发送切换到使用所述第二音频接口的确认。 音频设备和计算机设备被描述和要求保护。

    ECHO CONTROL THROUGH HIDDEN AUDIO SIGNALS
    45.
    发明申请
    ECHO CONTROL THROUGH HIDDEN AUDIO SIGNALS 有权
    ECHO通过隐藏音频信号进行控制

    公开(公告)号：US20150371654A1

    公开(公告)日：2015-12-24

    申请号：US14409948

    申请日：2013-06-27

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Craig JOHNSTON ,  Dong SHI ,  Xuejing SUN ,  Glenn N. DICKINS

    IPC: G10L21/0208 ,  G10L21/0232

    CPC classification number: G10L21/0208 ,  G10L21/0232 ,  G10L2021/02082 ,  H04M9/082

    Abstract: A method (800) for determining an estimate (215, 261) of an echo path property of an electronic device (200, 250, 300, 600). The electronic device is configured to render a total audio signal using a loudspeaker (102), and the electronic device is configured to record an echo of the rendered audio signal using a microphone (103), thereby yielding a recorded audio signal (112). The method comprises inserting (801), in an inaudible manner, an auxiliary audio signal (212) into the total audio signal to be rendered; wherein the auxiliary audio signal (212) comprises a tonal audio signal at a first frequency; isolating (803) the echo of the auxiliary audio signal (212) from the recorded audio signal (112); and determining (804) the estimate (215, 261) of the echo path property based on the inserted auxiliary audio signal (212) and based on the isolated echo of the auxiliary audio signal (212).

    Abstract translation: 一种用于确定电子设备（200,250,300,600）的回波路径属性的估计（215,261）的方法（800）。 电子设备被配置为使用扬声器（102）呈现总音频信号，并且电子设备被配置为使用麦克风（103）记录所呈现的音频信号的回声，从而产生记录的音频信号（112）。 该方法包括以无法听见的方式将辅助音频信号（212）插入（801）到要渲染的总音频信号中; 其中所述辅助音频信号（212）包括第一频率的音调音频信号; 从所记录的音频信号（112）隔离（803）辅助音频信号（212）的回波; 以及基于所插入的辅助音频信号（212）并且基于所述辅助音频信号（212）的隔离回波来确定（804）所述回波路径属性的估计（215,261）。

    Audio Burst Collision Resolution
    46.
    发明申请
    Audio Burst Collision Resolution 有权
    音频突发碰撞分辨率

    公开(公告)号：US20150341498A1

    公开(公告)日：2015-11-26

    申请号：US14653191

    申请日：2013-12-16

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Glenn N. DICKINS ,  Brendon COSTA ,  James ZEALEY ,  Jeremy Pascal BRUN

    IPC: H04M3/56 ,  H04M3/42 ,  H04M3/22

    CPC classification number: H04M3/2227 ,  G10L25/78 ,  H04M3/42187 ,  H04M3/568

    Abstract: In an conferencing system in which a plurality of communication devices electronically connect respective participants to one another, a method for mitigating the effects of substantially concurrent audio bursts from two or more of the participants includes identifying a priority attribute associated with each of multiple substantially concurrent audio bursts, comparing the identified priority attributes, and electronically suppressing at least one audio burst as a function of the comparison.

    Abstract translation: 在其中多个通信装置将各个参与者彼此电连接的会议系统中，用于减轻来自两个或多个参与者的基本上并发的音频突发的影响的方法包括标识与多个基本上并发的音频中的每一个相关联的优先级属性 突发，比较所识别的优先级属性，以及电子地抑制至少一个作为比较的函数的音频突发。

    METHOD OF RENDERING ONE OR MORE CAPTURED AUDIO SOUNDFIELDS TO A LISTENER
    50.
    发明申请
    METHOD OF RENDERING ONE OR MORE CAPTURED AUDIO SOUNDFIELDS TO A LISTENER 有权

    公开(公告)号：US20220030370A1

    公开(公告)日：2022-01-27

    申请号：US17397887

    申请日：2021-08-09

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION

    Inventor： Richard J. CARTWRIGHT ,  David S. MCGRATH ,  Glenn N. DICKINS

    IPC: H04S1/00 ,  H04S7/00 ,  H04R3/12 ,  H04R5/04 ,  H04R5/033

    Abstract: A computer implemented system for rendering captured audio soundfields to a listener comprises apparatus to deliver the audio soundfields to the listener. The delivery apparatus delivers the audio soundfields to the listener with first and second audio elements perceived by the listener as emanating from first and second virtual source locations, respectively, and with the first audio element and/or the second audio element delivered to the listener from a third virtual source location. The first virtual source location and the second virtual source location are perceived by the listener as being located to the front of the listener, and the third virtual source location is located to the rear or the side of the listener.

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