说明环境温度：筒音频率实际管长：理论管长管长修正：℃Hzmmmmmm23.0193.00800.103.8693.76实测值只开吹孔后实测，此为一倍频（缓吹），实测值实测值L=(v/2f)-△. L:音孔到吹口长度；v：声速；f：声波频率；△：管长修正值；T当时气温（摄氏温度）需要注意的是，声速受空气影响较大。可用 v=331*√（1+T/273) 来计算。也可用v=331+0.6*T来计算（推荐）助音孔频率理论数据（所有孔位都是从音孔的上沿算起，至吹孔顶端的长度）音名唱名F调比例（陈正生）对应孔位(mm)另一比例（推荐）对应孔位(mm)604.85604.85246.94B34#↓基音孔261.63C45↓1.0000565.631.0000565.631孔293.66D46↓0.8580485.310.8460478.522孔311.13D#46#↓0.7990451.940.7950449.683孔329.63E47↓0.7500424.220.7500424.224孔349.23F410.7100401.600.7000395.945孔392.00G420.6230352.390.6000339.386孔415.30G#42#0.5652319.690.5650319.587孔440.00A430.5325301.200.5250296.968孔466.16A#440.4790270.940.4550257.393.88B44#实际制作：孔位（从吹口顶端起）mm
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