小提琴声功率级测试

Measurement on the Sound Power Levels of Violin

小提琴是具有悠久历史的西洋弓弦乐器之一。但是MEYER关于小提琴声功率级的测量实验年代久远,如今小提琴的制作工艺与材料已发生了变化,声学测量技术也在进步,在这种情况下,小提琴的声功率还未予以重新测定。为此,介绍在消声室内参照相关国际标准和国家标准对小提琴声功率的测量研究工作。由两位乐师用两把不同的小提琴在消声室中分别以pp,mp,f,ff四种力度演奏五个单音a,#c^(1),#c^(2),a^(2)与a^(3),琶音,音阶和乐曲,测量小提琴1/3倍频带声压级,通过平均、计算,获得小提琴在不同演奏力度下演奏不同内容时的典型平均声功率级和动态范围,并与MEYER的测量结果进行比较分析。

The violin is a western bowed string instrument with a rich history.However,MEYER’s measurements of the violin’s sound power level are outdated.The craftsmanship and materials used in violin-making have evolved,and acoustic measurement technology has advanced.As a result,the sound power of the violin has not been re-measured.This article discusses research on measuring the sound power of violins in an anechoic chamber,following relevant international and national standards.Two musicians played five single tones(a,#c^(1),#c^(2),a^(2) and a^(3)),arpeggios,scales and music fragments on two different violins at pp,mp,f and ff intensities in the anechoic chamber.The sound pressure level of the violin's 1/3 octave band was measured.By averaging and calculating these measurements we obtained the typical average sound power level and dynamic range of the violin when playing different content at different intensities.These results were then compared with MEYER’s measurements.