Matlab课程设计报告

至诚学院MATLAB实践》课程设计学生姓名：学号：专业班级：指导教师：二○一二年伍月三日1目录1.目的⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯32.目剖析⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯33.体⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯34.详细⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯35.心得领会⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯1021、设计目的运用MATLAB实现MATLAB的GUI程序设计仿真音乐键盘。2、题目剖析学习MATLABGUI程序设计，设计和实现一个音乐键盘仿真系统。要求：依据软件工程方法，依据需求进行程序的功能剖析和界面设计，给出设计详尽说明。而后依据自己制定的功能要求进行程序设计和调试。以下几点是程序的功能，供参照。1）设计音乐键盘GUI界面，实现单音键盘的发声。2）实现键盘的双音多频，即每个键盘对应低音频组的一个频次和高音频组的一个频次，实现按键的发出双音。3）能改变音乐包络形式，实现音型的改变。4）可以演奏一段音乐。3、整体设计3.1设计框架3.2功能模块化分音乐键盘：每个键盘对应低音频组的一个频次和高音频组的一个频次，实现键盘的双音多频。单音：对键盘进行低音频组频次的选择3双音：对键盘进行高音频组频次的选择音乐：演奏一首“诞辰快乐”歌曲4、详细设计4.1各功能界面设计黑白键盘：每个键盘对应低音频组的一个频次和高音频组的一个频次，实现键盘的双音多频。单音：被选择后控制黑白键盘发出低音频组的声音混音：被选择后控制黑白键盘发出高低音频的混音音乐:点击后将演奏“诞辰快乐”歌曲.4.2各功能模块实现及调试结果黑白键盘函数区代码（前3个键）%---Executesonbuttonpressinpushbutton2.functionpushbutton2_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton2(seeGCBO)%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata(seeGUIDATA)globaljswitch(j)case1f1=262;n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);4soundsc(ff1)case2f1=262;n=0:1/8000:0.5;ff1=sin(f1*2*pi*n);r1=524;t=0:1/8000:0.5;rr1=sin(r1*2*pi*t);a=0.2;y=ff1+a*rr1;soundsc(y);end%---Executesonbuttonpressinpushbutton3.functionpushbutton3_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton3(seeGCBO)%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata(seeGUIDATA)globaljswitch(j)case1f1=294;n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)case2f1=294;n=0:1/8000:0.5;ff1=sin(f1*2*pi*n);r1=588;t=0:1/8000:0.5;rr1=sin(r1*2*pi*t);a=0.2;y=ff1+a*rr1;5soundsc(y);end%---Executesonbuttonpressinpushbutton4.functionpushbutton4_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton4(seeGCBO)%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata(seeGUIDATA)globaljswitch(j)case1f1=330;n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)case2f1=330;n=0:1/8000:0.5;ff1=sin(f1*2*pi*n);r1=660;t=0:1/8000:0.5;rr1=sin(r1*2*pi*t);a=0.2;y=ff1+a*rr1;soundsc(y);end单音：函数区代码：%---Executesonbuttonpressinpushbutton29.functionpushbutton29_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton29(seeGCBO)6%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata(seeGUIDATA)globaljj=1混音：函数区代码%---Executesonbuttonpressinpushbutton29.functionpushbutton29_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton29(seeGCBO)%eventdatareserved-tobedefinedinafutureversionofMATLAB%handlesstructurewithhandlesanduserdata(seeGUIDATA)globaljj=2音乐：函数区代码：%---Executesonbuttonpressinpushbutton20.functionpushbutton20_Callback(hObject,eventdata,handles)%hObjecthandletopushbutton20(seeGCBO)eventdatareserved-tobe%definedinafutureversionofMATLABhandlesstructurewithhandlesanduserdata(seeGUIDATA)f1=392;n=0:1/8000:0.9;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)g1=392;n=0:1/8000:0.6;x=exp(-2*n);gg1=x.*sin(f1*2*pi*n);7soundsc(gg1)h1=440;y1=392;j1=523;k1=494;n=0:1/8000:0.9;x=exp(-2*n);hh1=x.*sin(h1*2*pi*n);yy1=x.*sin(y1*2*pi*n);jj1=x.*sin(j1*2*pi*n);kk1=x.*sin(k1*2*pi*n);m=[hh1,yy1,jj1,kk1]soundsc(m)f1=0;n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)f1=392;n=0:1/8000:0.9;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)g1=392;n=0:1/8000:0.6;x=exp(-2*n);gg1=x.*sin(f1*2*pi*n);soundsc(gg1)h1=440;y1=392;j1=330;k1=294;n=0:1/8000:0.9;x=exp(-2*n);hh1=x.*sin(h1*2*pi*n);8yy1=x.*sin(y1*2*pi*n);jj1=x.*sin(j1*2*pi*n);kk1=x.*sin(k1*2*pi*n);m=[hh1,yy1,jj1,kk1]soundsc(m)f1=0;n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)f1=392;n=0:1/8000:0.9;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)g1=392;n=0:1/8000:0.6;x=exp(-2*n);gg1=x.*sin(f1*2*pi*n);soundsc(gg1)h1=587;y1=523;j1=494;k1=440;l1=392;n=0:1/8000:0.9;x=exp(-2*n);hh1=x.*sin(h1*2*pi*n);yy1=x.*sin(y1*2*pi*n);jj1=x.*sin(j1*2*pi*n);kk1=x.*sin(k1*2*pi*n);ll1=x.*sin(l1*2*pi*n);m=[hh1,yy1,jj1,kk1,ll1]soundsc(m)f1=0;9n=0:1/8000:1;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)f1=392;n=0:1/8000:0.9;x=exp(-2*n);ff1=x.*sin(f1*2*pi*n);soundsc(ff1)g1=392;n=0:1/8000:0.6;x=exp(-2*n);gg1=x.*sin(f1*2*pi*n);soundsc(gg1)h1=349;y1=294;j1=330;k1=294;n=0:1/8000:0.9;x=exp(-2*n);hh1=x.*sin(h1*2*pi*n);yy1=x.*sin(y1*2*pi*n);jj1=x.*sin(j1*2*pi*n);kk1=x.*sin(k1*2*pi*n);m=[hh1,yy1,j