Mypiano.rar

%---------Designer:BMn--------% %-----------Time:9.15.2020--------------% %创建可视化界面 function varargout = MyPiano(varargin) gui_Singleton = 1; %打开一个窗口 %该结构描述了该GUI的状况，包括gui的名字、运行实例、初始化函数、输出函数、布局以及回调函数。 gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @MyPiano_OpeningFcn, ... 'gui_OutputFcn', @MyPiano_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); %程序通过gui_State.gui_Callback = str2func(varargin{1}); %分别取得figure和包含的控件的CreateFcn回调函数，创建各个控件。 if nargin && ischar(varargin{1}) gui_State.gui_Callback = str2func(varargin{1}); end if nargout [varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:}); else gui_mainfcn(gui_State, varargin{:}); end %figure和各控件创建完毕，程序会调用OpeningFcn进行初始化， %然后运行OutputFcn，把figure的句柄作为输出参数输出。这时，GUI界面便在屏幕上显示出来。 function MyPiano_OpeningFcn(hObject, ~, handles, varargin) handles.output = hObject; guidata(hObject, handles); %欢迎页面和语音 function varargout = MyPiano_OutputFcn(~, ~, handles) smile = imread('smile.png'); s = 'Welcome To MyPiano!'; hs = msgbox(s,'Welcome!','custom',smile); ht = findobj(hs, 'Type', 'text'); %改变字体 set(ht, 'FontSize', 18, 'Unit', 'normal','FontName','Times New Roman'); set(hs,'Position',[480 380 280 80]); [y,fs] = audioread('WelcomeToMyPiano.wav'); %打开表示欢迎的语音 sound(y,fs); varargout{1} = handles.output; %第一个坐标系 function drawy(y,t) plot(t(1:2000),y(1:2000)); xlabel('time (s)');ylabel('amplitude'); zoom on; %第二个坐标系 function drawfft(y,fs) N=1024; fy=fft(y,N); %快速傅里叶变换 fy=abs(fy); %取绝对值 f=(0:N/2-1)*fs/N; plot(f,fy(1:N/2)); xlabel('Frequency (Hz)');ylabel('amplitude'); zoom on; %利用回调函数处理点击按键发声事件 %共4*7=28个按键代表4种不同的1(do)~7(xi)音调 % -------------------------------------------------------------------- function pushbutton11_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f11=130.8; y11=gen_wave(1,1); sound(y11,fs); axes(handles.axes1); drawy(y11,t); axes(handles.axes2); drawfft(y11,fs); set(findobj('Tag','edit1'),'String',f11); function pushbutton12_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f12=146.8; y12=gen_wave(2,1); sound(y12,fs); axes(handles.axes1); drawy(y12,t); axes(handles.axes2); drawfft(y12,fs); set(findobj('Tag','edit1'),'String',f12); function pushbutton13_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f13=164.8; y13=gen_wave(3,1); sound(y13,fs); axes(handles.axes1); drawy(y13,t); axes(handles.axes2); drawfft(y13,fs); set(findobj('Tag','edit1'),'String',f13); function pushbutton14_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f14=174.6; y14=gen_wave(4,1); sound(y14,fs); axes(handles.axes1); drawy(y14,t); axes(handles.axes2); drawfft(y14,fs); set(findobj('Tag','edit1'),'String',f14); function pushbutton15_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f15=196.0; y15=gen_wave(5,1); sound(y15,fs); axes(handles.axes1); drawy(y15,t); axes(handles.axes2); drawfft(y15,fs); set(findobj('Tag','edit1'),'String',f15); function pushbutton16_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f16=220.0; y16=gen_wave(6,1); sound(y16,fs); axes(handles.axes1); drawy(y16,t); axes(handles.axes2); drawfft(y16,fs); set(findobj('Tag','edit1'),'String',f16); function pushbutton17_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f17=246.9; y17=gen_wave(7,1); sound(y17,fs); axes(handles.axes1); drawy(y17,t); axes(handles.axes2); drawfft(y17,fs); set(findobj('Tag','edit1'),'String',f17); function pushbutton21_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f21=261.6; y21=gen_wave(8,1); sound(y21,fs); axes(handles.axes1); drawy(y21,t); axes(handles.axes2); drawfft(y21,fs); set(findobj('Tag','edit1'),'String',f21); function pushbutton22_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f22=293.7; y22=gen_wave(9,1); sound(y22,fs); axes(handles.axes1); drawy(y22,t); axes(handles.axes2); drawfft(y22,fs); set(findobj('Tag','edit1'),'String',f22); function pushbutton23_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f23=329.6; y23=gen_wave(10,1); sound(y23,fs); axes(handles.axes1); drawy(y23,t); axes(handles.axes2); drawfft(y23,fs); set(findobj('Tag','edit1'),'String',f23); function pushbutton24_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f24=349.2; y24=gen_wave(11,1); sound(y24,fs); axes(handles.axes1); drawy(y24,t); axes(handles.axes2); drawfft(y24,fs); set(findobj('Tag','edit1'),'String',f24); function pushbutton25_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f25=392.0; y25=gen_wave(12,1); sound(y25,fs); axes(handles.axes1); drawy(y25,t); axes(handles.axes2); drawfft(y25,fs); set(findobj('Tag','edit1'),'String',f25); function pushbutton26_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f26=440.0; y26=gen_wave(13,1); sound(y26,fs); axes(handles.axes1); drawy(y26,t); axes(handles.axes2); drawfft(y26,fs); set(findobj('Tag','edit1'),'String',f26); function pushbutton27_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f27=493.9; y27=gen_wave(14,1); sound(y27,fs); axes(handles.axes1); drawy(y27,t); axes(handles.axes2); drawfft(y27,fs); set(findobj('Tag','edit1'),'String',f27); function pushbutton31_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f31=523.3; y31=gen_wave(15,1); sound(y31,fs); axes(handles.axes1); drawy(y31,t); axes(handles.axes2); drawfft(y31,fs); set(findobj('Tag','edit1'),'String',f31); function pushbutton32_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f32=587.3; y32=gen_wave(16,1); sound(y32,fs); axes(handles.axes1); drawy(y32,t); axes(handles.axes2); drawfft(y32,fs); set(findobj('Tag','edit1'),'String',f32); function pushbutton33_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f33=659.3; y33=gen_wave(17,1); sound(y33,fs); axes(handles.axes1); drawy(y33,t); axes(handles.axes2); drawfft(y33,fs); set(findobj('Tag','edit1'),'String',f33); function pushbutton34_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f34=698.5; y34=gen_wave(18,1); sound(y34,fs); axes(handles.axes1); drawy(y34,t); axes(handles.axes2); drawfft(y34,fs); set(findobj('Tag','edit1'),'String',f34); function pushbutton35_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f35=784.0; y35=gen_wave(19,1); sound(y35,fs); axes(handles.axes1);f35=784.0; drawy(y35,t); axes(handles.axes2); drawfft(y35,fs); set(findobj('Tag','edit1'),'String',f35); function pushbutton36_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f36=880.0; y36=gen_wave(20,1); sound(y36,fs); axes(handles.axes1); drawy(y36,t); axes(handles.axes2); drawfft(y36,fs); set(findobj('Tag','edit1'),'String',f36); function pushbutton37_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f37=987.8; y37=gen_wave(21,1); sound(y37,fs); axes(handles.axes1); drawy(y37,t); axes(handles.axes2); drawfft(y37,fs); set(findobj('Tag','edit1'),'String',f37); function pushbutton41_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f41=1046.5; y41=gen_wave(22,1); sound(y41,fs); axes(handles.axes1); drawy(y41,t); axes(handles.axes2); drawfft(y41,fs); set(findobj('Tag','edit1'),'String',f41); function pushbutton42_Callback(~, ~, handles) fs = 8192;t = linspace(0,2*pi,fs);f42=1174.7; y42=gen_wave(23,1); sound(y42,fs); axes(handles.axes1);