电钢琴复音数
<span style="font-size:10.5pt"><span style="font-family:等线"><strong><span style="font-size:11.5pt"><span style="font-family:等线"><span style="color:#444444">复音数</span></span></span></strong></span></span>
<section style="margin-top:10px; margin-bottom:10px"><strong>当琴键按下，在一秒钟之内每一个琴键能同时发出的最大音符数量。</strong><span style="color:#444444"><span data-offset-key="1l8sh-0-8" style="widows:1">我们以钢琴为例，如果当我们按下琴键或踩下延音踏板，这时产生每一个音符的声音就会拖到声音自然消失为止，这个发音的过程很快中途也不能被人为掐断。如果把每个音符想象成是一辆汽车的话，每一个复音数就可以理解为一条车道，发音过程的时间长短就可以理解为前进的方向，正在发音的音符（一辆车）就要占用复音数（一条车道）：通过这个比喻，大家就可以很好理解：当复音数越多（车道），音符（车辆）的通行就越舒畅，单位时间内能完整表达的音符就越多，因为车道多，车辆就不会拥挤，这样单位时间内效率就高。复音数多，对于音符密集，速度快，延音踏板叠加使用得多的乐曲是至关重要的，其实随便一个和弦发出的声音都就超过</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">100</span></span><span style="color:#444444">个发声数了。</span></span></section><section style="margin-top:10px; margin-bottom:10px"></section><section style="text-align:center; margin-top:10px; margin-bottom:10px"> </section><section style="margin-top:10px; margin-bottom:10px"><span data-offset-key="2mutq-0-0" style="widows:1">早期的电钢琴，复音数可能只有</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">16</span></span><span style="color:#444444">个左右，后面技术的不断更新迭代，现在复音数慢慢地增加从</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">16</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">24</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">32</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">48</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">64</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">128</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">192</span></span><span style="color:#444444">、</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">256</span></span><span style="color:#444444">，甚至更多。</span><strong><span style="widows:1"><span style="font-family:等线"><span style="color:#e6b322">复音数的增多，第一防止莫名其妙丢音引起演奏效果的不完整；第二，技术上可以放心地使用立体声采样的钢琴音色样本，增加钢琴声场的逼真程度和立体感。</span></span></span></strong><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444"><span data-offset-key="2mutq-0-0" style="widows:1">192</span><span style="color:#444444">或更多的复音数，就给电钢琴装载了琴弦共鸣等钢琴音色细节提供了更好的帮助。所以一般来说</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">128</span></span><span style="color:#444444">复音的电钢琴，是不大可能有比较好的的琴弦共鸣效果的，最多是效果器模拟的制音共鸣。</span></span></span></section><section style="margin-top:10px; margin-bottom:10px"><span data-offset-key="2mutq-0-0" style="widows:1">建议大家预算允许的情况下尽量购买最大复音数，如</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">192</span></span><span style="color:#444444">个复音数及以上会比较好，目前市面的电钢琴大部分都在</span><span lang="EN-US" style='font-family:"PingFangTC-light",serif'><span style="color:#444444">64</span></span><span style="color:#444444">以上，复音数越大音质就越好，弹奏时灵敏度就会越高，快速弹奏时，不会丢音。</span></section>
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