MATLAB-GUI-声音图像处理20个模块的程序..doc

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MATLAB-GUI-声音图像处理20个模块的程序..doc

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% --- Executes on button press in pushbutton1. function pushbutton1_Callback(hObject, eventdata, handles) % hObject handle to pushbutton1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) y=wavread(H:\cw\cw.wav); [y,Fs,bits] = wavread(H:\cw\cw.wav) axes(handles.axes1); plot(y); grid; title(原始声音信号的波形); y1=y(100:199); axes(handles.axes2); plot(y1); grid; title(截取声音信号的波形); % --- Executes on button press in pushbutton18. function pushbutton18_Callback(hObject, eventdata, handles) % hObject handle to pushbutton18 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) y=wavread(H:\cw\cw.wav); [y,Fs,bits] = wavread(H:\cw\cw.wav) y1=y(100:199); axes(handles.axes1); plot(y1); grid; title(截取声音信号的波形); t=0:0.01:2; y2=abs(fft(y1,512)); f=100*(0:256)/512; %进行对应的频率转换 axes(handles.axes2); plot(f,y2(1:257)); grid; title(FFT变换后波形); % --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) % hObject handle to pushbutton2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) y=wavread(H:\cw\cw.wav); [y,Fs,bits] = wavread(H:\cw\cw.wav) axes(handles.axes1); plot(y); grid; title(原始声音信号的波形); y1=fft(y,100); f=0:Fs/99:Fs; axes(handles.axes2); plot(f,abs(y1)); grid; title(原始声音信号的频谱); % --- Executes on button press in pushbutton3. function pushbutton3_Callback(hObject, eventdata, handles) % hObject handle to pushbutton3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) y=wavread(H:\cw\cw.wav); [y,Fs,bits] = wavread(H:\cw\cw.wav) axes(handles.axes1); plot(y); grid; title(原始声音信号的波形); y1=fft(y,1000); y2=abs(y1); axes(handles.axes2); plot(y2); grid; title(