CAJ | 학술논문

基于实时显示乐音音调高低的目的，本设计通过谐波峰值法算法，在Matlab软件平台上进行仿真试验。首先对乐音基波频率进行提取，然后将其转化为C调对应的数字音符实时显示在屏幕上。实验表明，本次设计通过数字音符的表示形式正确的表示出不同乐音的音调高低。本次设计的设计思路可以移植到硬件平台上产品化推广使用，由此降低音乐学习的门槛。
기우실시현시악음음조고저적목적，본설계통과해파봉치법산법，재Matlab연건평태상진행방진시험。수선대악음기파빈솔진행제취，연후장기전화위C조대응적수자음부실시현시재병막상。실험표명，본차설계통과수자음부적표시형식정학적표시출불동악음적음조고저。본차설계적설계사로가이이식도경건평태상산품화추엄사용，유차강저음악학습적문함。
In order to display the level of musical sound timely,based on harmonic peak algorithm, the simulation test is carried out on the platform of Matlab software.First,the fundamental frequency is extracted from the musical sound,and then it is converted into the digital notes of C tone and displayed on the screen timely.The experiment demonstrates that the level of musical sound is showed by the digital notes correctly.The idea of this design can be promoted for production by transplanting to hardware platform ,thereby reducing the difficulty of music learning.