近场头相关传输函数的多声源快速测量系统设计与验证

发布时间：2018-06-18 05:42

本文选题：声源定位 + 测量系统　；参考：《声学学报》2017年03期

【摘要】：近场头相关传输函数(HRTF)是双耳听觉科学研究和虚拟听觉重放应用的重要基础数据。近场HRTF测量系统要求具有高的测量效率、精度和重复性,以至于目前未见文献解决真人受试者的近场HRTF测量困难。本文研究并实现了一种计算机控制的近场HRTF的高效测量系统,并提出系统的快速校准方法,首先实现了真人受试者的近场HRTF测量。通过声学、机械与电子硬件和软件的综合设计,提高了测量效率。通过准确校准声源、受试者和双耳传声器的位置,提高了测量精确度和重复性。系统可用于1.0 m范围内不同声源距离的真人受试者以及人工头的近场HRTF测量,单个声源距离的全空间近场HRTF测量时间减少至20 min以内。测量结果表明,系统测量精度满足实际需求,可用于科学研究和个性化近场HRTF测量及数据库建立。
[Abstract]:Near-field head correlation transfer function (HRTFs) is an important basic data for binaural auditory science research and virtual auditory playback applications. The near-field HRTF measurement system requires high measurement efficiency, accuracy and repeatability, so that there is no literature to solve the problem of near-field HRTF measurement in real human subjects. In this paper, a computer controlled near field HRTF measurement system is studied and implemented, and a fast calibration method is proposed. Firstly, the near field HRTF measurement of real human subjects is realized. The measurement efficiency is improved by the integrated design of acoustics, mechanical and electronic hardware and software. The accuracy and repeatability of the measurement are improved by accurately calibrating the sound source and the position of the subjects and the binaural microphone. The system can be used to measure the near-field HRTF of human subjects and artificial heads in the range of 1.0 m, and the time of the whole space near-field HRTF measurement of the distance of a single sound source can be reduced to less than 20 min. The measurement results show that the accuracy of the system can meet the actual needs and can be used in scientific research, personalization of near-field HRTF measurement and database establishment.
【作者单位】：华南理工大学物理与光电学院声学研究所;
【基金】：国家自然科学基金项目(11574090,11104082) 华南理工大学中央高校基本科研业务费项目(2015ZZ135)资助
【分类号】：TB52

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