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    • 8. 发明授权
    • Apparatus and method for restoring multi-channel audio signal using HE-AAC decoder and MPEG surround decoder
    • 使用HE-AAC解码器和MPEG环绕解码器恢复多声道音频信号的装置和方法
    • US08611547B2
    • 2013-12-17
    • US12307289
    • 2007-07-04
    • Jeong-Il SeoSeung-Kwon BeackIn-Seon JangDae-Young JangJin-Woo HongJin-Woong Kim
    • Jeong-Il SeoSeung-Kwon BeackIn-Seon JangDae-Young JangJin-Woo HongJin-Woong Kim
    • H04R5/00
    • G10L19/008G10L19/02G10L19/18
    • Provided is a method for controlling synchronizing downmix signals and MPEG surround side information signals by controlling a delay according to the kind of downmix audio signals in an MPEG surround decoder. When multi-channel audio signals are restored using an HE-AAC decoder and a low-power MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter. Anther delay unit delays spatial parameters to compensate for a delay caused in QMF and Nyquist banks when time-domain downmix signals are used. Also, when multi-channel audio signals are restored using an HE-AAC decoder and a high-quality MPEG surround decoder and complex QMF signals outputted from the HE-AAC decoder are used as downmix signals, a delay unit compensates for a delay caused in a real-to-complex converter.
    • 提供了一种通过根据MPEG环绕解码器中的下混音频信号的种类来控制延迟来控制同步下混信号和MPEG环绕侧信息信号的方法。 当使用HE-AAC解码器和低功率MPEG环绕解码器来恢复多声道音频信号时,使用从HE-AAC解码器输出的复杂QMF信号作为下混合信号,延迟单元补偿实际产生的延迟 复合转换器。 花时延单元延迟空间参数以补偿在使用时域降混信号时在QMF和奈奎斯特银行中引起的延迟。 此外,当使用HE-AAC解码器和高质量MPEG环绕解码器恢复多声道音频信号并且将从HE-AAC解码器输出的复杂QMF信号用作下混合信号时,延迟单元补偿由 一个真实到复杂的转换器。
    • 10. 发明授权
    • Apparatus and method for coding and decoding multi object audio signal with multi channel
    • 多通道多目标音频信号的编码和解码装置及方法
    • US08639498B2
    • 2014-01-28
    • US12593808
    • 2008-03-31
    • Seung-Kwon BeackJeong-Il SeoTae-Jin LeeDae-Young JangKyeong-Ok KangJin-Woo HongJin-Woong Kim
    • Seung-Kwon BeackJeong-Il SeoTae-Jin LeeDae-Young JangKyeong-Ok KangJin-Woo HongJin-Woong Kim
    • G10L19/00
    • G10L19/008
    • Provided are an apparatus and method for coding and decoding a multi object audio signal with multi channel. The apparatus includes: a multi channel encoding means for down-mixing an audio signal including a plurality of channels, generating a spatial cue for the audio signal including the plurality of channels, and generating first rendering information including the generated spatial cue; and a multi object encoding unit for down-mixing an audio signal including a plurality of objects, which includes the down-mixed signal from the multi channel encoding unit, generating a spatial cue for the audio signal including the plurality of objects, and generating second rendering information including the generated spatial cue, wherein the multichannel encoding unit generates a spatial cue for the audio signal including the plurality of objects regardless of a Coder-DECoder (CODEC) scheme the limits the multi channel encoding unit.
    • 提供了一种用于对具有多信道的多对象音频信号进行编码和解码的装置和方法。 该装置包括:多通道编码装置,用于对包括多个通道的音频信号进行下变频混合,产生包括多个通道的音频信号的空间提示,以及生成包括产生的空间提示的第一渲染信息; 以及多对象编码单元,用于对包括来自所述多通道编码单元的所述下混合信号的包括多个对象的音频信号进行下混频,以产生包括所述多个对象的音频信号的空间提示,并且产生第二 包括生成的空间提示的渲染信息,其中多通道编码单元生成包括多个对象的音频信号的空间提示,而不管编码器 - 解码器(CODEC)方案如何限制多频道编码单元。