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基于CPLD的88键电子琴的设计与实现

更新时间:2020-08-29 06:10:33 大小:965K 上传用户:守着阳光1985查看TA发布的资源 标签:cpld88电子琴 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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为满足对标准电子琴支持音区范围广、音色圆润悦耳、电路实现简单、性价比高的要求,设计了一个产生88个电子琴琴音的数字电路,用VHDL在Altera公司的CPLD器件EPM1270T144上编程实现,并对输出琴音按音区划分设计了音质提纯有源滤波器,取得了使琴音更加圆润悦耳的效果。实验测试及波形仿真结果表明,所设计电子琴可以产生88个基本琴音,并具有和弦和消除琴键触点抖动的功能,很好的实现了电子琴系统的各项功能。

In order to satisfy the requirements of supporting much more octal articulation regions,tone color more purificating and pleasing,circuit realization sampler and cost performance higher of electronic piano,a digital circuit able to produce 88 electronic piano sounds on EPM1270T144 of CPLD device of Altera is designed using VHDL and filters is designed to make the output music more pleasing according to the divide of articulation region. Practice and wave simulation both show that this design has good features such as supporting the output of the 88 basic electronic piano sounds,providing the function of chord and cancelling the effect from key jitter,namely the design can well accomplish the desired function.

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基于CPLD的88键电子琴的设计与实现.pdf 965K

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