Reproduction of sound radiation directivities of musical instruments by a spherical loudspeaker with multiple transducers
Reproduction of sound radiation directivities of musical instruments by a spherical loudspeaker with multiple transducers
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通过具有多个换能器的球形扬声器再现乐器的声音辐射方向性
DOI：
10.1145/1900179.1900197
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发表时间：
2010
期刊：
影响因子：
--
通讯作者：
M. Katsumoto
中科院分区：
文献类型：
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作者：
K. Maki;Toshiyuki Kimura;M. Katsumoto
我们开发了一种球形扬声器，由多个传感器嵌入在紧凑的球形外壳中，旨在通过扬声器呈现3D音频信息，在近场重现与原始音质相等的音质。为了对该扬声器系统进行声学评价，将该扬声器再现的小提琴和吉他声音的辐射特性与音乐家演奏的声音进行了比较。通过对播放器和扬声器周围测量的声压值应用矢量运算来量化这些特征。在距离扬声器中心50厘米处，其声压分布与原始小提琴1.5 kHz以上的声音相似。球形扬声器还有效地模拟了原始乐器声音的辐射特性的时间方面。此外，就原声乐器的辐射特性的再现性而言，这种扬声器远优于单箱扬声器。
We have developed a spherical loudspeaker consisting of multiple transducers embedded in a compact spherical enclosure, which aims to recreate sound quality equal to the original in the near-field by presenting 3D audio information with the loudspeaker. The radiation characteristics of violin and guitar sound reproduced by the loudspeaker were compared with those played by musicians in order to acoustically evaluate the loudspeaker system. The characteristics were quantified by applying vector operation to sound pressure values measured around the player and loudspeaker. At 50 cm from center of the loudspeaker, its sound pressure distributions were similar to those from the original violin's sound above 1.5 kHz. The spherical loudspeaker also effectively simulated temporal aspects of radiation characteristics of original musical instruments' sound. Moreover, this loudspeaker was far superior to a one-box loudspeaker in terms of reproducibility of the radiation characteristics of original instruments' sound.