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    GENERATION AND PLAYBACK OF NEAR-FIELD AUDIO CONTENT
    33.
    发明申请
    GENERATION AND PLAYBACK OF NEAR-FIELD AUDIO CONTENT 审中-公开

    公开(公告)号：US20190239013A1

    公开(公告)日：2019-08-01

    申请号：US16375780

    申请日：2019-04-04

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Remi AUDFRAY ,  Nicolas R. TSINGOS ,  Jurgen W. SCHARPF

    IPC: H04S3/00 ,  H04S7/00 ,  H04R27/00

    CPC classification number: H04S3/002 ,  H04R27/00 ,  H04R2499/13 ,  H04S7/302 ,  H04S2400/13

    Abstract: Audio signals are received. The audio signals include left and right surround channels. The audio signals are played back using far-field loudspeakers distributed around a space having a plurality of listener positions. The left and right surround channels are played back by a pair of far-field loudspeakers arranged at opposite sides of the space having the plurality of listener positions. An audio component coinciding with or approximating audio content common to the left and right surround channels is obtained. The audio component is played back using at least a pair of near-field transducers arranged at one of the listener positions. Associated systems, methods and computer program products are provided. Systems, methods and computer program products providing a bitstream comprising the audio signals and the audio component are also provided, as well as a computer-readable medium with data representing such audio content.

    DETERMINING AZIMUTH AND ELEVATION ANGLES FROM STEREO RECORDINGS
    36.
    发明申请
    DETERMINING AZIMUTH AND ELEVATION ANGLES FROM STEREO RECORDINGS 审中-公开

    公开(公告)号：US20180192186A1

    公开(公告)日：2018-07-05

    申请号：US15736713

    申请日：2016-07-01

    Applicant: Dolby Laboratories Licensing Corporation

    Inventor： Nicolas R. TSINGOS

    IPC: H04R1/40 ,  G10L19/008 ,  H04R3/00

    CPC classification number: H04R1/406 ,  G01S5/02 ,  G10L19/008 ,  G10L19/20 ,  H04R3/005 ,  H04S2400/15

    Abstract: Input audio data, including first microphone audio signals and second microphone audio signals output by a pair of coincident, vertically-stacked directional microphones, may be received. An azimuthal angle corresponding to a sound source location may be determined, based at least in part on an intensity difference between the first microphone audio signals and the second microphone audio signals. An elevation angle corresponding to a sound source location may be determined, based at least in part on a temporal difference between the first microphone audio signals and the second microphone audio signals. Output audio data, including at least one audio object corresponding to a sound source, may be generated. The audio object may include audio object signals and associated audio object metadata. The audio object metadata may include at least audio object location data corresponding to the sound source location.

    SPATIAL ERROR METRICS OF AUDIO CONTENT
    39.
    发明申请
    SPATIAL ERROR METRICS OF AUDIO CONTENT 审中-公开
    音频内容的空间误差度量

    公开(公告)号：US20160337776A1

    公开(公告)日：2016-11-17

    申请号：US15110371

    申请日：2015-01-05

    Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAL AB

    Inventor： Dirk Jeroen BREEBAART ,  Lianwu CHEN ,  Lie LU ,  Antonio Mateos SOLE ,  Nicolas R. TSINGOS

    IPC: H04S7/00 ,  H04R29/00

    Abstract: Audio objects that are present in input audio content in one or more frames are determined. Output clusters that are present in output audio content in the one or more frames are also determined. Here, the audio objects in the input audio content are converted to the output clusters in the output audio content. One or more spatial error metrics are computed based at least in part on positional metadata of the audio objects and positional metadata of the output clusters.

    Abstract translation: 确定存在于一个或多个帧中的输入音频内容中的音频对象。 还确定存在于一个或多个帧中的输出音频内容中的输出簇。 这里，输入音频内容中的音频对象被转换为输出音频内容中的输出群集。 至少部分地基于音频对象的位置元数据和输出簇的位置元数据来计算一个或多个空间误差度量。

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