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Abstract:
本发明公开一种数字助听器中基于深度学习的双耳声源定位方法,首先将双耳声源信号通过gammatone滤波器分解成若干信道,通过加权系数提取高能量的信道,接着利用头相关函数(head‑related‑transform function, HRTF)提取第一类特征,即耳间时间差(Interaural Time Difference, ITD)和耳间强度差(Interaural Intensity Difference, IID)作为深度学习的输入,将水平面划分为四个象限,缩小定位范围。然后提取头相关传递的第二类特征,即耳间声压差(Interaural Level Difference, ILD)和耳间相位差(Interaural Phase Difference, IPD),最后为了得到更精确的定位,将第一类和第二类的四个特征作为下一个深度学习的输入,从而得到声源定位的方位角。实现在水平面上0度到360度以5度为步长进行72个方位角的精确定位。
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Patent Info :
Type: 发明授权
Patent No.: CN201711397816.2
Filing Date: 2017-12-21
Publication Date: 2021-05-14
Pub. No.: CN108122559B
Applicants: 北京工业大学
Legal Status: 未缴年费
Cited Count:
WoS CC Cited Count: 0
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ESI Highly Cited Papers on the List: 0 Unfold All
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Chinese Cited Count:
30 Days PV: 17
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