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1. 发明申请

US20070121956A1 Device and method for integrating sound effect processing and active noise control 有权
标题翻译：整合声效处理和主动噪声控制的装置和方法
公开(公告)号：US20070121956A1
公开(公告)日：2007-05-31
申请号：US11362850
申请日：2006-02-28
申请人： Mingsian Bai , Kuen-Ying Ou , Jain-Liang Lin
发明人： Mingsian Bai , Kuen-Ying Ou , Jain-Liang Lin
IPC分类号： H04R29/00 , H04R3/00
CPC分类号： H04S7/30 , G10K11/178 , G10K2210/1053 , G10K2210/1081 , H04S2420/01
摘要： A device and a method for integrating 3D sound effect processing and active noise control are proposed. A digital signal processor incorporates an artificial reverberator and a 3D spatial audio processor into an audio module. The audio signal is presented via an earphone. Next, a microphone embedded in the vicinity of the loudspeaker inside the headset is used to sense an external noise while playing, and feed it back to an active noise controller, which generates an anti-noise to eliminate the external noise. Therefore, the signal to noise ratio can be increased and the 3D sound field effect can be significantly enhanced. In addition, a head-related transfer function is more efficiently implemented on the basis of an interaural transfer function in the spatial audio processing to reduce the filter order lower and hence the computation loading.
摘要翻译：提出了一种用于集成3D声效处理和主动噪声控制的装置和方法。数字信号处理器将人造混响器和3D空间音频处理器并入到音频模块中。音频信号通过耳机呈现。接下来，嵌入耳机内的扬声器附近的麦克风用于在播放时感测外部噪声，并将其馈送到主动噪声控制器，其产生抗噪声以消除外部噪声。因此，可以提高信噪比，可以显着提高3D声场效果。此外，基于空间音频处理中的耳间传递函数，更有效地实现头相关传递函数，以降低滤波器次数，从而降低计算负载。

2. 发明申请

US20070223711A1 System and method for visualizing sound source energy distribution 审中-公开
标题翻译：可视化声源能量分布的系统和方法
公开(公告)号：US20070223711A1
公开(公告)日：2007-09-27
申请号：US11439286
申请日：2006-05-24
申请人： Mingsian Bai , Jia-Hong Lin , Yu-Wei Ning
发明人： Mingsian Bai , Jia-Hong Lin , Yu-Wei Ning
IPC分类号： H04R29/00 , H03G3/00 , G06F17/00
CPC分类号： H04R29/005 , G01H3/125 , H04R1/406 , H04R2201/401 , H04R2201/403
摘要： The present invention discloses a system for visualizing sound source energy distribution and a method thereof, wherein a propagation matrix and a window matrix are obtained firstly; next, an inverse operation of the propagation matrix is performed; next, a multiplication operation of the result of the inverse operation and the window matrix is performed; next, the result of the multiplication operation is transformed from the time domain to the frequency domain; thus, a sound source energy distribution reconstructor is established; then, an array of microphones is used to receive the sound source signals; next, a multi-channel capture device transforms the received sound source signals into digital sound source signals; lastly, a convolution operation is performed on the digital sound source signals and the sound source energy distribution reconstructor to obtain a visualized sound source energy distribution. Therefore, the present invention can provide the energy distributions of nearfield/farfield stable-state/unstable-state sound sources.
摘要翻译：本发明公开了一种用于可视化声源能量分布的系统及其方法，其中首先获得传播矩阵和窗口矩阵; 接下来，执行传播矩阵的逆运算; 接下来，执行逆操作的结果和窗口矩阵的乘法运算; 接下来，乘法运算的结果从时域变换到频域; 建立了声源能量分配重建器; 然后，使用麦克风阵列接收声源信号; 接下来，多通道捕获装置将接收到的声源信号转换为数字声源信号; 最后，对数字声源信号和声源能量分配重构器执行卷积运算，以获得可视化的声源能量分布。因此，本发明可以提供近场/远场稳态/不稳定状态声源的能量分布。

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