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    • 2. 发明申请
    • METHOD OF IMPROVING EXTERNALIZATION OF VIRTUAL SURROUND SOUND
    • 提高虚拟环绕声外部化的方法
    • WO2015048551A2
    • 2015-04-02
    • PCT/US2014/057868
    • 2014-09-26
    • SONY COMPUTER ENTERTAINMENT INC.UMMINGER, FrederickWARDLE, Scott
    • UMMINGER, FrederickWARDLE, Scott
    • H04R5/02
    • H04S7/304H04S5/005H04S7/306
    • Aspects of the present disclosure relate to techniques for processing a source audio signal in order to localize sounds. In particular, aspects of the present disclosure relate to sound localization techniques which externalize sounds for headphone audio, such as a virtual surround sound headphone system. In various implementations, room reverberations and other acoustic effects of the environment may be more accurately modeled using improved room reverberation models. For example, in some implementations, the underlying source signal may be filtered with a filter representing a room impulse response that is a combination of a stereo room impulse response and a mono room impulse response. By way of further example, in some implementations the source signal may be filtered with a combined impulse response filter that is derived from binaural recordings of simulated impulses recorded in a desired reverberant environment.
    • 本公开的各方面涉及用于处理源音频信号以便定位声音的技术。 特别地,本公开的各方面涉及使头戴式耳机音频的声音外化的声音定位技术,诸如虚拟环绕声头戴式耳机系统。 在各种实施方式中,可以使用改进的房间混响模型来更精确地建模房间混响和环境的其他声学效果。 例如,在一些实施方式中,可以用表示房间脉冲响应的滤波器对基础源信号进行滤波,该房间脉冲响应是立体声室内脉冲响应和单声道室内脉冲响应的组合。 作为进一步的例子,在一些实施方式中,源信号可以利用组合的脉冲响应滤波器进行滤波,该组合脉冲响应滤波器从记录在期望混响环境中的模拟脉冲的双耳记录中导出。