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    Methods and Systems for Automatically Updating Look Directions of Radiation Patterns
    1.
    发明申请
    Methods and Systems for Automatically Updating Look Directions of Radiation Patterns 有权

    公开(公告)号：US20240406658A1

    公开(公告)日：2024-12-05

    申请号：US18665492

    申请日：2024-05-15

    Applicant: Apple Inc.

    Inventor： James A. Livingston ,  Jack P. Newman ,  Frank Baumgarte ,  Francois Becker

    IPC: H04S7/00 ,  G06F3/0484 ,  G10L19/008

    Abstract: A method that includes displaying a user interface (UI) of a three-dimensional (3D) acoustic environment that includes a sound source; receiving a user selection, via an input device, of a location within the UI, the location towards which the sound source is to be oriented within the 3D acoustic environment; determining a set of parameters that define an orientation of the sound source towards the location within the 3D acoustic environment; determining that there is motion of the location or the sound source within the 3D acoustic environment; updating, without user intervention and based on the motion, the set of parameters to maintain the orientation of the sound source towards the location.

    Deferred Loudness Adjustment For Dynamic Range Control
    2.
    发明公开
    Deferred Loudness Adjustment For Dynamic Range Control 审中-公开

    公开(公告)号：US20240143271A1

    公开(公告)日：2024-05-02

    申请号：US18403432

    申请日：2024-01-03

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte

    IPC: G06F3/16 ,  H04R3/04

    CPC classification number: G06F3/165 ,  G06F3/162 ,  H04R3/04 ,  H04R2430/01

    Abstract: A bitstream is obtained by a decoder side, that contains an encoded version of an audio signal and an instantaneous loudness sequence of the audio signal. The instantaneous loudness sequence has not been loudness normalized. A dynamic range control, DRC, gain sequence is produced by applying the instantaneous loudness sequence to a DRC characteristic, with loudness normalization. The DRC gain sequence is applied to the decoded audio signal. Other aspects are also described and claimed.

    DEFERRED LOUDNESS ADJUSTMENT FOR DYNAMIC RANGE CONTROL
    3.
    发明申请
    DEFERRED LOUDNESS ADJUSTMENT FOR DYNAMIC RANGE CONTROL 有权

    公开(公告)号：US20220147311A1

    公开(公告)日：2022-05-12

    申请号：US17501839

    申请日：2021-10-14

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte

    IPC: G06F3/16 ,  H04R3/04

    Abstract: A bitstream is obtained by a decoder side, that contains an encoded version of an audio signal and an instantaneous loudness sequence of the audio signal. The instantaneous loudness sequence has not been loudness normalized. A dynamic range control, DRC, gain sequence is produced by applying the instantaneous loudness sequence to a DRC characteristic, with loudness normalization. The DRC gain sequence is applied to the decoded audio signal. Other aspects are also described and claimed.

    ENCODED AUDIO METADATA-BASED EQUALIZATION
    7.
    发明申请
    ENCODED AUDIO METADATA-BASED EQUALIZATION 有权
    编码音频基于元数据的均衡

    公开(公告)号：US20170032801A1

    公开(公告)日：2017-02-02

    申请号：US15060392

    申请日：2016-03-03

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte

    IPC: G10L19/26 ,  G10L19/16 ,  H04S7/00 ,  G10L19/008

    CPC classification number: G10L19/26 ,  G10L19/008 ,  G10L19/167 ,  G11B27/031 ,  G11B27/322 ,  H04S3/006 ,  H04S3/008 ,  H04S7/307 ,  H04S2400/03 ,  H04S2400/13 ,  H04S2400/15

    Abstract: A system for producing an encoded digital audio recording has an audio encoder that encodes a digital audio recording having a number of audio channels or audio objects. An equalization (EQ) value generator produces a sequence of EQ values which define EQ filtering that is to be applied when decoding the encoded digital audio recording, wherein the EQ filtering is to be applied to a group of one or more of the audio channels or audio objects of the recording independent of any downmix. A bitstream multiplexer combines the encoded digital audio recording with the sequence of EQ values, the latter as metadata associated with the encoded digital audio recording. Other embodiments are also described including a system for decoding the encoded audio recording.

    Abstract translation: 用于产生编码数字音频记录的系统具有对具有多个音频通道或音频对象的数字音频记录进行编码的音频编码器。 均衡（EQ）值产生器产生一系列EQ值，其定义当对编码的数字音频记录进行解码时应用的EQ滤波，其中EQ滤波将被应用于一个或多个音频信道的组或 音频对象的录音独立于任何下混。 比特流多路复用器将编码的数字音频记录与EQ值序列组合，后者作为与编码的数字音频记录相关联的元数据。 还描述了包括用于对编码音频记录进行解码的系统的其它实施例。

    METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL
    8.
    发明申请
    METADATA FOR LOUDNESS AND DYNAMIC RANGE CONTROL 有权
    元素和动态范围控制的元数据

    公开(公告)号：US20140294200A1

    公开(公告)日：2014-10-02

    申请号：US14225950

    申请日：2014-03-26

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte ,  Eric A. Allamanche ,  Stefan K. O. Strommer

    IPC: H03G3/20

    CPC classification number: H03G3/20 ,  G10L19/008 ,  G10L21/0316 ,  H03G7/007

    Abstract: An audio normalization gain value is applied to an audio signal to produce a normalized signal. The normalized signal is processed to compute dynamic range control (DRC) gain values in accordance with a selected one of several pre-defined DRC characteristics. The audio signal is encoded, and the DRC gain values are provided as metadata associated with the encoded audio signal. Several other embodiments are also described and claimed.

    Abstract translation: 将音频归一化增益值应用于音频信号以产生归一化信号。 处理归一化信号以根据几个预定义的DRC特性中选择的一个来计算动态范围控制（DRC）增益值。 音频信号被编码，并且提供DRC增益值作为与编码的音频信号相关联的元数据。 还描述和要求保护的其它几个实施例。

    Method and System for Spatially Rendering Three-Dimensional (3D) Scenes
    9.
    发明公开
    Method and System for Spatially Rendering Three-Dimensional (3D) Scenes 审中-公开

    公开(公告)号：US20240114313A1

    公开(公告)日：2024-04-04

    申请号：US18471780

    申请日：2023-09-21

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte ,  Dipanjan Sen

    IPC: H04S7/00 ,  G06T19/00

    CPC classification number: H04S7/304 ,  G06T19/006 ,  H04S2420/01

    Abstract: A method that includes receiving a first bitstream that includes an encoded version of an audio signal for a three-dimensional (3D) scene and a first set of metadata that has 1) a position of a 3D sub-scene within the scene and 2) a position of a sound source associated with the audio signal within the sub-scene; determining a position of a listener; spatially rendering the scene to produce the sound source with the audio signal at the position of the sound source with respect to the position of the listener; receiving a second bitstream that includes a second set of metadata that has a different position of the sub-scene; and adjusting the spatial rendering of the scene such that the position of the sound source changes to correspond to movement of the sub-scene from the position of the sub-scene to the different position of the sub-scene.

    Method and System for Encoding Loudness Metadata of Audio Components
    10.
    发明公开
    Method and System for Encoding Loudness Metadata of Audio Components 审中-公开

    公开(公告)号：US20240105196A1

    公开(公告)日：2024-03-28

    申请号：US18471199

    申请日：2023-09-20

    Applicant: Apple Inc.

    Inventor： Frank Baumgarte ,  Dipanjan Sen

    IPC: G10L19/16 ,  G10L25/51

    CPC classification number: G10L19/167 ,  G10L25/51

    Abstract: A method that includes receiving an audio component associated with an audio scene, the audio component including an audio signal, determining a loudness level of the audio component based on the audio signal, receiving a target loudness level for the audio component, producing a bitstream with the audio component by encoding the audio signal and including metadata that has the loudness level and the target loudness level, and transmitting the bitstream to an electronic device.

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