用标准的定音,吉他从六弦到一弦的空弦频率依此是:E A d g b e1。因为a1=440Hz,而A比a1低两个八 度,所以A=110Hz。而E在A的下方純四度處,音數為5個半音,故E=110/2^(5/12)Hz=82.41Hz。类似地,可轻易算出其它各弦频率,列表如下: 调音我用的Ubuntu下的一个叫lingot的小程序。打开后对着麦克风拨弦,即可显示频率。根据频谱图和指针的摆动,我发现我的五弦音色最不纯。 测了一下我用共振法调过的琴,各弦频率是: 66, 89, 118, 157, 200, 268,相邻弦的频率比是:
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