Two-dimensional shape discrimination by sighted people using simulated virtual echoes
Two-dimensional shape discrimination by sighted people using simulated virtual echoes
复制标题
使用模拟虚拟回声的正常人二维形状识别
DOI：
10.1121/10.0003194
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发表时间：
2021-01-01
影响因子：
1
通讯作者：
Hiryu, Shizuko
中科院分区：
文献类型：
--
作者：
Fujitsuka, Yumi;Sumiya, Miwa;Hiryu, Shizuko
本研究提出一种新的研究方法，利用心理声学实验和声学仿真来研究人类回声定位。一个形状的歧视实验进行了视力正常的人使用音高转换的虚拟回波从不同的二维（2D）形状的目标。使用基于Bossy、Talmat和Laugier [（2004）]的时域有限差分法的三维声学模拟来模拟这些回波。J. Acoust. Soc. Am. 115，2314-2324]。实验和仿真结果表明，回声的音色和音调的基础上确定的声音干扰可能是有效的声学线索的二维形状的歧视。新开发的研究方法可能会导致更有效的人类回声定位的未来研究。
In this study, a new research method using psychoacoustic experiments and acoustic simulations is proposed for human echolocation research. A shape discrimination experiment was conducted for sighted people using pitch-converted virtual echoes from targets of dissimilar two-dimensional (2D) shapes. These echoes were simulated using a three-dimensional acoustic simulation based on a finite-difference time-domain method from Bossy, Talmat, and Laugier [(2004). J. Acoust. Soc. Am. 115, 2314-2324]. The experimental and simulation results suggest that the echo timbre and pitch determined based on the sound interference may be effective acoustic cues for 2D shape discrimination. The newly developed research method may lead to more efficient future studies of human echolocation.