基于多通道解卷积的车内声重放系统优化设计  

Optimal design of automotive audio sound reproduction system based on multi-channel deconvolution

作　　者：张航 赵尚 林志斌 卢晶[1] Zhang Hang;Zhao Shang;Lin Zhibin;Lu Jing(Key Laboratory of Modern Acoustics,Ministry of Education,Institute of Acoustics of Nanjing University,Nanjing,210093,China)

机构地区：[1]近代声学教育部重点实验室,南京大学声学研究所,南京210093

出　　处：《南京大学学报（自然科学版）》2021年第6期1023-1031,共9页Journal of Nanjing University（Natural Science）

基　　金：国家自然科学基金(11874219)。

摘　　要：随着汽车行业的高速发展,汽车音响声品质,如音质感与空间感的研究与应用成为汽车声学系统的研究热点.提出一种适用于汽车音响系统的多通道均衡和串扰消除的优化系统.基于车内多测点的冲激响应,设计了优化系统,分别用于改善汽车音响系统的音质和空间感知效果.该音响系统中,频域解卷积方法用于设计多通道逆滤波器,以高质量汽车音响系统的典型频率响应作为目标频率响应.通过多个客观指标验证分析了该系统的有效性,并通过主观评价实验验证了该系统在主观听感上的性能提升.With the rapid development of the automotive industry,the research of automotive audio sound quality,such as timbral quality and spatial quality,has become a hotspot for automotive audio systems. In this paper,an optimized system with multi-channel equalization and crosstalk cancellation for automotive audio systems is proposed in order to improve the timbral quality and spatial quality. The optimized system is designed based on the impulse response measured at multiple points in the vehicle. The frequency domain deconvolution method is introduced to design a multi-channel inverse filter in the audio system,and a typical frequency response of a high quality automotive audio system is taken as the target frequency response. The effectiveness of the proposed system is verified and analyzed by a series of objective metrics and subjective evaluation experiments.

关 键 词：汽车声重放系统 声品质 多通道均衡 串扰消除 

分 类 号：O429[理学—声学]