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    BINAURAL AUDIO CAPTURE USING UNTETHERED WIRELESS HEADSET
    11.
    发明申请
    BINAURAL AUDIO CAPTURE USING UNTETHERED WIRELESS HEADSET 审中-公开

    公开(公告)号：US20190261089A1

    公开(公告)日：2019-08-22

    申请号：US15901624

    申请日：2018-02-21

    Applicant: Apple Inc.

    Inventor： Sriram Hariharan ,  Baptiste P. Paquier ,  Eric A. Allamanche ,  Alon Paycher

    IPC: H04R5/04 ,  H04R1/10 ,  H04R5/027 ,  H04R5/033 ,  H04R1/40 ,  H04S1/00

    Abstract: A wireless headset includes first and second wireless earphone devices, each including a microphone. The first earphone device assembles a first group of audio packets, each of which includes a first low-resolution clock value, a first high-resolution clock value, and a sequence of first microphone samples, and transmits the first plurality of audio packets to the second wireless earphone device, as a slave device of a first wireless network. The second earphone device receives the first group of audio packets from the first wireless earphone device, assembles a second group of audio packets, each of which includes a second low-resolution clock value, a second high-resolution clock value, and a sequence of second microphone samples, and transmits the first and second groups of audio packets to an external device. Other aspects are also described and claimed.

    Metadata for ducking control
    12.
    发明授权
    Metadata for ducking control 有权

    公开(公告)号：US10224894B2

    公开(公告)日：2019-03-05

    申请号：US15595792

    申请日：2017-05-15

    Applicant: Apple Inc.

    Inventor： Tomlinson M. Holman ,  Frank M. Baumgarte ,  Eric A. Allamanche

    IPC: H03G3/30 ,  G10L19/008 ,  H04N21/439 ,  H04N21/81 ,  H04R27/02

    Abstract: An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.

    Metadata for loudness and dynamic range control
    13.
    发明授权
    Metadata for loudness and dynamic range control 有权
    用于响度和动态范围控制的元数据

    公开(公告)号：US09559651B2

    公开(公告)日：2017-01-31

    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 ,  H03G7/00 ,  G10L21/0316 ,  G10L19/008

    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。

    Management, Replacement and Removal of Explicit Lyrics during Audio Playback
    14.
    发明申请
    Management, Replacement and Removal of Explicit Lyrics during Audio Playback 有权
    管理，替换和删除音频播放期间的明确歌词

    公开(公告)号：US20160093316A1

    公开(公告)日：2016-03-31

    申请号：US14502622

    申请日：2014-09-30

    Applicant: APPLE INC.

    Inventor： Baptiste P. Paquier ,  Anthony J. Guetta ,  Aram M. Lindahl ,  Eric A. Allamanche

    IPC: G10L25/48 ,  H04L29/06

    CPC classification number: G10L25/48 ,  H04L65/604 ,  H04L65/605

    Abstract: Unwanted audio, such as explicit language, may be removed during audio playback. An audio player may identify and remove unwanted audio while playing an audio stream. Unwanted audio may be replaced with alternate audio, such as non-explicit lyrics, a “beep”, or silence. Metadata may be used to describe the location of unwanted audio within an audio stream to enable the removal or replacement of the unwanted audio with alternate audio. An audio player may switch between clean and explicit versions of a recording based on the locations described in the metadata. The metadata, as well as both the clean and explicit versions of the audio data, may be part of a single audio file, or the metadata may be separate from the audio data. Additionally, real-time recognition analysis may be used to identify unwanted audio during audio playback.

    Abstract translation: 在音频播放期间，可能会删除不需要的音频，例如显式语言。 音频播放器可以在播放音频流时识别和去除不需要的音频。 不需要的音频可能会被替代音频替代，例如非明确的歌词，“哔”或沉默。 元数据可用于描述音频流中不需要的音频的位置，以便能够用备用音频去除或替换不需要的音频。 音频播放器可以基于元数据中描述的位置在干涉和显式版本的记录之间切换。 元数据以及音频数据的干净和显式版本可以是单个音频文件的一部分，或者元数据可以与音频数据分开。 此外，实时识别分析可用于在音频播放期间识别不需要的音频。

    ENABLING STEREO CONTENT FOR VOICE CALLS
    15.
    发明申请
    ENABLING STEREO CONTENT FOR VOICE CALLS 有权

    公开(公告)号：US20220392460A1

    公开(公告)日：2022-12-08

    申请号：US17741874

    申请日：2022-05-11

    Applicant: Apple Inc.

    Inventor： Aarti Kumar ,  Eric A. Allamanche ,  Su Fu ,  Leijun Dong

    IPC: G10L19/008 ,  H04R5/033 ,  H04R5/04 ,  G10L19/24 ,  H04M1/60

    Abstract: Disclosed are systems and methods to modify the Bluetooth mono HFP protocol to support bi-directional stereo operation for high bandwidth audio including 12-KHz wide-band, 16-KHz super wide-band (SWB), and 24-KHz full band (FB) audio. The techniques leverage the larger packet size and longer duty cycle of the 2-EV5 transport packet and expand the block size of the audio frames generated by the AAC-ELD codec to increase the maximum data throughput from the 64 kbps of the mono HFP protocol to 192 kbps using a stereo HFP protocol. The increased throughput not only supports stereo operations, but allows the transport of redundant or FEC packets for increased robustness against packet loss. In one aspect, the AAC-ELD codec may be configured for dynamic bit rate switching to flexibly perform trade-offs between audio quality and robustness against packet loss. The stereo HFP may configure the maximum throughput based on the desired audio quality.

    Metadata for ducking control
    16.
    发明授权
    Metadata for ducking control 有权

    公开(公告)号：US10992276B2

    公开(公告)日：2021-04-27

    申请号：US16269866

    申请日：2019-02-07

    Applicant: Apple Inc.

    Inventor： Tomlinson M. Holman ,  Frank M. Baumgarte ,  Eric A. Allamanche

    IPC: H03G3/30 ,  G10L19/008 ,  H04N21/439 ,  H04N21/81 ,  H04R27/02

    Abstract: An audio encoding device and an audio decoding device are described herein. The audio encoding device may examine a set of audio channels/channel groups representing a piece of sound program content and produce a set of ducking values to associate with one of the channels/channel groups. During playback of the piece of sound program content, the ducking values may be applied to all other channels/channel groups. Application of these ducking values may cause (1) the reduction in dynamic range of ducked channels/channel groups and/or (2) movement of channels/channel groups in the sound field. This ducking may improve intelligibility of audio in the non-ducked channel/channel group. For instance, a narration channel/channel group may be more clearly heard by listeners through the use of selective ducking of other channels/channel groups during playback.

    METHOD AND SYSTEM OF AUDIO POWER REDUCTION AND THERMAL MITIGATION USING PSYCHOACOUSTIC TECHNIQUES
    19.
    发明申请
    METHOD AND SYSTEM OF AUDIO POWER REDUCTION AND THERMAL MITIGATION USING PSYCHOACOUSTIC TECHNIQUES 有权
    使用PSOCHOACOUSTIC TECHNIQUES的音频功率降低和热度减轻的方法和系统

    公开(公告)号：US20170011748A1

    公开(公告)日：2017-01-12

    申请号：US14792373

    申请日：2015-07-06

    Applicant: Apple Inc.

    Inventor： Simon K. Porter ,  Eric A. Allamanche ,  Richard M. Powell

    IPC: G10L19/032 ,  H04R29/00

    CPC classification number: G10L19/032 ,  G10L19/26 ,  G10L21/0208 ,  H04R3/007 ,  H04R29/001 ,  H04R2430/03

    Abstract: Method of audio power reduction and thermal mitigation using psychoacoustic techniques starts by receiving a decoded audio signal in a reproduction system. Decoded audio signal is a signal that is decompressed and to be played back by a speaker. A masking curve is generated based on psychoacoustic models and the decoded audio signal. The masking curve is applied to the decoded audio signal to remove unheard frequencies and to generate a power-reduced audio signal. Other embodiments are also described.

    Abstract translation: 使用心理声学技术的音频功率降低和热减轻的方法通过在再现系统中接收解码的音频信号而开始。 解码的音频信号是被解压缩并由扬声器播放的信号。 基于心理声学模型和解码音频信号产生掩蔽曲线。 屏蔽曲线被应用于解码的音频信号以去除未闻频率并产生功率降低的音频信号。 还描述了其它实施例。

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