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    HEADPHONE VIRTUALIZATION
    7.
    发明公开
    HEADPHONE VIRTUALIZATION 审中-公开

    公开(公告)号：EP4447494A2

    公开(公告)日：2024-10-16

    申请号：EP24198175.2

    申请日：2016-02-11

    申请人： Dolby Laboratories Licensing Corporation

    发明人： FIELDER, Louis D. ,  SHUANG, Zhiwei ,  DAVIDSON, Grant A. ,  ZHENG, Xiguang ,  VINTON, Mark S.

    IPC分类号： H04S7/00

    摘要： The present disclosure relates to headphone virtualization. A filtering unit convolves a binaural room impulse response (BRIR) with an audio input signal to produce a set of left-ear and right-ear intermediate signals. The BRIR contains directionally-controlled reflections that impart a desired perceptual cue to an audio input signal corresponding to a sound source location. A stochastic echo generator generates coefficients for the filtering unit for adding a diffuse component to the audio input signal. A combining unit combines the left-ear and right-ear intermediate signals to form a binaural output signal.

    SYSTEM AND METHOD FOR ADAPTIVE AUDIO SIGNAL GENERATION, CODING AND RENDERING
    8.
    发明公开
    SYSTEM AND METHOD FOR ADAPTIVE AUDIO SIGNAL GENERATION, CODING AND RENDERING 审中-公开

    公开(公告)号：EP4404594A3

    公开(公告)日：2024-10-16

    申请号：EP24181312.0

    申请日：2012-06-27

    申请人： Dolby Laboratories Licensing Corporation

    发明人： ROBINSON, Charles Q. ,  TSINGOS, Nicolas R. ,  CHABANNE, Christophe

    IPC分类号： H04R29/00 ,  H04S7/00 ,  H04R3/12 ,  H04R27/00 ,  H04S3/00 ,  H04S5/00

    摘要： Embodiments are described for an adaptive audio system that processes audio data comprising a number of independent monophonic audio streams. One or more of the streams has associated with it metadata that specifies whether the stream is a channel-based or object-based stream. Channel-based streams have rendering information encoded by means of channel name; and the object-based streams have location information encoded through location expressions encoded in the associated metadata. A codec packages the independent audio streams into a single serial bitstream that contains all of the audio data. This configuration allows for the sound to be rendered according to an allocentric frame of reference, in which the rendering location of a sound is based on the characteristics of the playback environment (e.g., room size, shape, etc.) to correspond to the mixer's intent. The object position metadata contains the appropriate allocentric frame of reference information required to play the sound correctly using the available speaker positions in a room that is set up to play the adaptive audio content.