Multichannel spectral mapping audio encoding apparatus and method with dynamically varying mapping coefficients
    37.
    发明授权
    Multichannel spectral mapping audio encoding apparatus and method with dynamically varying mapping coefficients 有权
    多通道光谱映射音频编码装置和方法,具有动态变化的映射系数

    公开(公告)号:US07773756B2

    公开(公告)日:2010-08-10

    申请号:US11258790

    申请日:2005-10-25

    Applicant: Terry D. Beard

    Inventor: Terry D. Beard

    Abstract: A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other stereo or monaural delivery systems. The invention reduces the data rate needed for the transmission of multichannel digital audio.

    Abstract translation: 用于从常规单声道或立体声音频信号导出一组多声道音频信号的方法和电路使用辅助多声道频谱映射数据流。 音频可以以立体声和多声道格式从光盘,FM收音机或其他立体声或单声道传送系统上的常规立体声信号播放。 本发明降低了传输多声道数字音频所需的数据速率。

    Multichannel spectral mapping audio apparatus and method
    39.
    发明授权
    Multichannel spectral mapping audio apparatus and method 失效
    多声道频谱映射音频设备和方法

    公开(公告)号:US06252965B1

    公开(公告)日:2001-06-26

    申请号:US08715085

    申请日:1996-09-19

    Applicant: Terry D. Beard

    Inventor: Terry D. Beard

    Abstract: A method and circuit for deriving a set of multichannel audio signals from a conventional monaural or stereo audio signal uses an auxiliary multichannel spectral mapping data stream. Audio can be played back in stereo and multichannel formats from a conventional stereo signal on compact discs, FM radio, or other stereo or monaural delivery systems. The invention reduces the data rate needed for the transmission of multichannel digital audio.

    Abstract translation: 用于从常规单声道或立体声音频信号导出一组多声道音频信号的方法和电路使用辅助多声道频谱映射数据流。 音频可以以立体声和多声道格式从光盘,FM收音机或其他立体声或单声道传送系统上的常规立体声信号播放。 本发明降低了传输多声道数字音频所需的数据速率。

    Digital sound system for motion pictures with analog sound track
emulation
    40.
    发明授权
    Digital sound system for motion pictures with analog sound track emulation 失效
    具有模拟声道仿真的动态影像数字音响系统

    公开(公告)号:US5155510A

    公开(公告)日:1992-10-13

    申请号:US811711

    申请日:1991-12-20

    Applicant: Terry D. Beard

    Inventor: Terry D. Beard

    Abstract: A signal conditioner is provided for the output of a digital sound source in a dual digital/analog motion picture theater sound system so that the digitally derived audio signal emulates the analog sound track signal. This allows the digital source to be easily integrated into the overall sound system, without displacing the existing analog sound track system. The theater sound playback mechanism is provided with the conditioned audio signal when the digital sound source is actuated, and receives the analog sound track signal at other times. The conditioning circuit includes an adjustable impedance to match the current from the digital sound source to the current from the analog sound track reader, a high frequency variable signal adjuster that is complimentary to a high frequency emphasis built into the theater playback system, and an optional subwoof output.

    Abstract translation: 提供了一种信号调节器,用于在双数字/模拟动态影院音响系统中输出数字声源,使得数字导出的音频信号模拟模拟声道信号。 这允许数字源容易地集成到整个声音系统中,而不会使现有的模拟声轨系统移位。 当数字声源被激活时,剧院声音播放机构设有调节音频信号,并在其它时间接收模拟声道信号。 调理电路包括可调节的阻抗,以将来自数字声源的电流与来自模拟声轨读取器的电流相匹配,高频可变信号调节器与内置于剧院播放系统中的高频重点互补,以及可选的 低音输出。

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