A study on switching of the transfer functions focusing on sound quality
A study on switching of the transfer functions focusing on sound quality
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关注音质的传递函数切换研究
DOI：
10.1250/ast.26.267
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发表时间：
2005
影响因子：
0.7
通讯作者：
S. Shimada
中科院分区：
文献类型：
--
作者：
Akihiro Kudo;H. Hokari;S. Shimada
许多论文描述了使用扬声器或耳机的移动声像方案。由于大多数这些方案都会切换所使用的空间传递函数，因此在切换时会出现波不连续性，这会降低音质。虽然波不连续性的特性取决于所使用的移动声像方案，但似乎没有论文考虑过波不连续性与所使用的方案之间的关系。为了纠正这一遗漏，本文研究了三种方法：简单切换方法、重叠相加方法和淡入·淡出方法。评估了由波不连续性引起的声音劣化，并引入了客观测量——频谱失真宽度来量化波不连续性。使用 Scheffe 的比较测试进行的主观评估验证了改进汉明窗的重叠相加方法和淡入·淡出方法优于其他方法。
Many papers have described moving sound image schemes that use loudspeakers or headphones. Since most of these schemes switch the spatial transfer function being used, wave discontinuity occurs at the moment of switching, which degrades the sound quality. While the characteristics of the wave discontinuity depend on the moving sound image scheme used, no paper appears to have considered the relationship between the wave discontinuity and the scheme used. To rectify this omission, this paper examines three approaches: the simple switching approach, the overlap-add approach, and the fade-in·fade-out approach. The sound degradation caused by the wave discontinuity is assessed, and an objective measure, spectrum distortion width, is introduced to quantify the wave discontinuity. Subjective assessments, carried out using Scheffe’s comparison tests, verify that the overlap-add approach with modified hamming window and the fade-in·fade-out approach were better than the other methods.
一种对运动声像进行双耳响应插值的方法
DOI：
--
发表时间：
2003
期刊：
Acoust.Sci. & Tech.(日本音響学会英文論文誌) 24
影响因子：
--
作者：
M.Matsumoto;M.Tohyama;H.Yanagawa
通讯作者：
H.Yanagawa