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    • 4. 发明申请
    • STEREOPHONIC SOUND OUTPUT APPARATUS AND EARLY REFLECTION GENERATION METHOD THEREOF
    • 立体声输出装置及其早期反射产生方法
    • US20080205675A1
    • 2008-08-28
    • US11869964
    • 2007-10-10
    • Denis KUTUZOVChul-min Choi
    • Denis KUTUZOVChul-min Choi
    • H04R5/02
    • H04S3/004
    • A stereophonic sound output apparatus and an early reflection generation method thereof. The stereophonic sound output apparatus includes an early reflection generator to implement an early reflection when a 5.1 channel audio signal is down-mixed to a 2-channel audio signal to play back a 5.1 channel audio signal through a 2-channel headphone. The early reflection generator generates early reflections in pairs in which there is an appropriate time difference between the left side reflections and the right side reflections by generating an interaural time difference between two input audio signals and filtering. It is possible to copy the characteristics of early reflections in a real listening room. It is also possible to implement an early reflection similar to a real reflection measured in an apparatus for playing back the 5.1 channel audio signal through 2-channel headphone. A natural 5.1 channel effect may also be obtained using little computation.
    • 立体声输出装置及其早期反射生成方法。 立体声输出装置包括一个早期反射发生器,当5.1声道音频信号被下混合成2声道音频信号以通过2声道耳机播放5.1声道音频信号时,实现早期反射。 早期反射发生器通过在两个输入音频信号和滤波之间产生一个间隔时间差,产生成对的早期反射,其中在左侧反射和右侧反射之间存在适当的时间差。 可以在真实的聆听室中复制早期反射的特征。 也可以实现类似于在用于通过双声道耳机播放5.1声道音频信号的装置中测量的真实反射的早期反射。 使用很少的计算也可以获得天然的5.1声道效果。
    • 5. 发明授权
    • Stereophonic sound output apparatus and early reflection generation method thereof
    • 立体声输出装置及其早期反射产生方法
    • US08817997B2
    • 2014-08-26
    • US11869964
    • 2007-10-10
    • Denis KutuzovChul-min Choi
    • Denis KutuzovChul-min Choi
    • H03G3/00H04R5/02
    • H04S3/004
    • A stereophonic sound output apparatus and an early reflection generation method thereof. The stereophonic sound output apparatus includes an early reflection generator to implement an early reflection when a 5.1 channel audio signal is down-mixed to a 2-channel audio signal to play back a 5.1 channel audio signal through a 2-channel headphone. The early reflection generator generates early reflections in pairs in which there is an appropriate time difference between the left side reflections and the right side reflections by generating an interaural time difference between two input audio signals and filtering. It is possible to copy the characteristics of early reflections in a real listening room. It is also possible to implement an early reflection similar to a real reflection measured in an apparatus for playing back the 5.1 channel audio signal through 2-channel headphone. A natural 5.1 channel effect may also be obtained using little computation.
    • 立体声输出装置及其早期反射生成方法。 立体声输出装置包括一个早期反射发生器,当5.1声道音频信号被下混合成2声道音频信号以通过2声道耳机播放5.1声道音频信号时,实现早期反射。 早期反射发生器通过在两个输入音频信号和滤波之间产生一个间隔时间差,产生成对的早期反射,其中在左侧反射和右侧反射之间存在适当的时间差。 可以在真实的聆听室中复制早期反射的特征。 也可以实现类似于在用于通过双声道耳机播放5.1声道音频信号的装置中测量的真实反射的早期反射。 使用很少的计算也可以获得天然的5.1声道效果。