基于MATLAB-GUI语音信号的采集分析系统.doc

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1、基于的语音信号采集分析系统前一阵子用MATLABGUI做了一个语音信号采集与分析的界面。功能包括录音、播放、时域、频域分析吧。也导入本地文件进行分析。效果如下：源码如下：function varargout = GUI_1(varargin)% GUI_1 MATLAB code for GUI_1.fig% GUI_1, by itself, creates a new GUI_1 or raises the existing% singleton*.% H = GUI_1 returns the handle to a new GUI_1 or the handle to% the exi

2、sting singleton*.% GUI_1('CALLBACK',hObject,eventData,handles,.) calls the local% function named CALLBACK in GUI_1.M with the given input arguments.% GUI_1('Property','Value',.) creates a new GUI_1 or raises the% existing singleton*. Starting from the left, property value pai

3、rs are% applied to the GUI before GUI_1_OpeningFcn gets called. An% unrecognized property name or invalid value makes property application% stop. All inputs are passed to GUI_1_OpeningFcn via varargin.% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one% instance to run (si

4、ngleton)".% See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help GUI_1 % Last Modified by GUIDE v2.5 25-May-2015 20:52:27 % Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name', mfilename, . 'gui_Singleton',

5、gui_Singleton, . 'gui_OpeningFcn', GUI_1_OpeningFcn, . 'gui_OutputFcn', GUI_1_OutputFcn, . 'gui_LayoutFcn', , . 'gui_Callback', );if nargin && ischar(varargin1) gui_State.gui_Callback = str2func(varargin1);end if nargout varargout1:nargout = gui_mainfcn(gui_St

6、ate, varargin:);else gui_mainfcn(gui_State, varargin:);end% End initialization code - DO NOT EDIT % - Executes just before GUI_1 is made visible.function GUI_1_OpeningFcn(hObject, , handles, varargin)% This function has no output args, see OutputFcn.% hObject handle to figure% eventdata reserved - t

7、o be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% varargin command line arguments to GUI_1 (see VARARGIN) % Choose default command line output for GUI_1set(handles.axes_t_m,'visible','off');set(handles.axes_fft_m,'visible'

8、,'off');set(handles.axes_t_w,'visible','off');set(handles.axes_fft_w,'visible','off');global local_yn;local_yn=0;% a=imread('yanda.jpg');% axes(handles.axes_t_m)% image(a);handles.output = hObject;% Update handles structureguidata(hObject, handles);% U

9、IWAIT makes GUI_1 wait for user response (see UIRESUME)% uiwait(handles.figure1); ha=axes('units','normalized','position',0 0 1 1);uistack(ha,'down')II=imread('暖色.JPG');image(II)colormap grayset(ha,'handlevisibility','off','visible',

10、9;off');%- Outputs from this function are returned to the command line. function varargout = GUI_1_OutputFcn(, , handles) % varargout cell array for returning output args (see VARARGOUT);% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structu

11、re with handles and user data (see GUIDATA) % Get default command line output from handles structurevarargout1 = handles.output; % - Executes on button press in pushbutton_luyin.function pushbutton_luyin_Callback(hObject, , handles)% hObject handle to pushbutton_luyin (see GCBO)% eventdata reserved

12、- to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% global recObj;% keyboard;% global sex_flag% switch sex_flag% case 0% set(handles.axes_t_m,'visible','on');% set(handles.axes_fft_m,'visible','on');% set(handles.

13、axes_t_w,'visible','off');% set(handles.axes_fft_w,'visible','off');% case 1% set(handles.axes_t_m,'visible','off');% set(handles.axes_fft_m,'visible','off');% set(handles.axes_t_w,'visible','off');% set(handles.axes_fft

14、_w,'visible','off');% case 2% set(handles.axes_t_m,'visible','off');% set(handles.axes_fft_m,'visible','off');% set(handles.axes_t_w,'visible','off');% set(handles.axes_fft_w,'visible','off');% endglobal local_yn;local_y

15、n=0;fs_chose=handles.fs_chose;nBits=8;nChannels=1;%canshu=fs_chose,nBits,nChannels;if(str2double(get(handles.et_time,'String')=0) %添加str2double 后正常 set(handles.set_time,'String','时间参数输入错误!'); msgbox('认真点好吗亲 输入时间参数先。','错误提示','Icon'); set(handles.set_tim

16、e,'BackgroundColor','red'); pause(1); set(handles.set_time,'BackgroundColor','default'); set(handles.set_time,'String','请输入录音时长');else %cla (handles.axes_t_m,'reset'); % set(handles.axes_t_m,'visible','off'); set(handles.pushbut

17、ton_luyin,'BackgroundColor','green'); set(handles.pushbutton_luyin,'String','正在录音.'); recObj = audiorecorder(fs_chose,nBits,nChannels); disp('Start speaking.') recordblocking(recObj, handles.recor_time); disp('End of Recording.'); set(handles.pushbutto

18、n_luyin,'BackgroundColor','yellow'); set(handles.pushbutton_luyin,'String','录音结束'); %play(recObj); pause(1); %新加代码 加入语音识别-刘帅20150526% myRecording = getaudiodata(recObj);% y1=myRecording; % ù% L=length(y1);% NFFT = 2nextpow2(L); % Next power of 2 from length of y%

19、 Y = fft(y1,NFFT)/L;% % f = fs_chose/2*linspace(0,1,NFFT/2+1);% % keyboard;% a=0;% for i=1:fs_chose/2% % if (2*abs(Y)>0.00015% if 2*abs(Y)>(1e-5)% %if(i=2)% %msgbox('你个','性别提示','Icon');% a=a+1;% end% end% if a>10% msgbox('你个','性别提示','Icon');%

20、end% keyboard;% axes(handles.axes_fft_m);% plot(f,2*abs(Y(1:NFFT/2+1); %语音识别刘帅 20150526 set(handles.pushbutton_luyin,'BackgroundColor','red'); set(handles.pushbutton_luyin,'String','点我录音'); handles.recObj=recObj; guidata(hObject,handles); %更新handles里的数据end% % 回放录音数据%

21、play(recObj);% % 获取录音数据% myRecording = getaudiodata(recObj);% % 绘制录音数据波形% plot(myRecording);%keyboard; % - Executes on button press in pushbutton_plot.function pushbutton_plot_Callback(hObject, , handles)% hObject handle to pushbutton_plot (see GCBO)% eventdata reserved - to be defined in a future v

22、ersion of MATLAB% handles structure with handles and user data (see GUIDATA)% 回放录音数据%set(handles.axes_t_m,'visible','on');%set(handles.axes_fft_m,'visible','on');global local_yn;global sex_flag;switch local_yn case 0 if(str2double(get(handles.et_time,'String')

23、=0) %添加str2double 后正常 msgbox('亲 别逗好吗？请录音或者选择本地文件先。 ','Error','Icon'); %errordlg('亲 别逗好吗？请输入时间参数或者选择本地文件先。','Error','on'); else switch sex_flag case 0 recObj=handles.recObj; % 获取录音数据 %myRecording = getaudiodata(recObj,'uint8'); myRecording = get

24、audiodata(recObj); d=myRecording; name=get(handles.et_savme,'String'); %audiowrite(name,d,8000); audiowrite(name,d,handles.fs_chose); %msgbox('数据保存成功','消息提示','Icon'); % 绘制录音数据波形 axes(handles.axes_t_m); draw_m=plot(myRecording); title('时域信号'); xlabel('t'

25、;); ylabel('幅值'); % Fs=16000; % fs=handles.fs_chose; %采集频率 y1=myRecording; % 一维矩阵 L=length(y1); % 计算元素个数 NFFT = 2nextpow2(L); % Next power of 2 from length of y 提高运算速度 Y = fft(y1,NFFT)/L; %傅里叶变换 NFFT级蝶形运算 ？ f = fs/2*linspace(0,1,NFFT/2+1); % x轴点数 % Plot single-sided amplitude spectrum. axes(

26、handles.axes_fft_m); draw_fft_m=plot(f,2*abs(Y(1:NFFT/2+1); title('频域信号') xlabel('Frequency (Hz)') ylabel('|Y(f)|') % xFFT = fft(data); % ± % xfft = abs(xFFT); % ·ù % % Avoid taking the log of 0. % index = xfft = 0; % xfft(index) = 1e-17; % % mag = 20*log10(xff

27、t); % ·ù·± % mag = mag(1:blockSize/2); % % f = (0:length(mag)-1)*Fs/blockSize; %f = f(:); % axes(handles.axes_fft_m); % draw_fft_m=plot(f(:,1),mag(:,1); % ylabel('Magnitude (dB)'); % xlabel('Frequency (Hz)'); % title('频谱图'); % Fs=1000; % nbit=24; % wavwrit

28、e(myRecording,1000,24,'test_1.wav'); %MATLAB 写wav文件，看最大最小值 % myRecording_fft,Fs,nbits = wavread('test_1.wav'); % MATLAB读wav文件，看最大最小值，预计是在-1和1之间 % N=length(myRecording_fft) % Fm=fft(myRecording_fft,N); % axes(handles.axes_fft_m); % draw_fft_m=plot(handles.axes_fft_m,100*abs(Fm); % tit

29、le('频域信号'); % xlabel('w'); % ylabel('幅值'); handles.draw_fft_m=draw_fft_m; guidata(hObject,handles); handles.draw_plot_m=draw_m; guidata(hObject,handles); case 1 recObj=handles.recObj; % 获取录音数据 myRecording = getaudiodata(recObj); % 绘制录音数据波形 axes(handles.axes_t_w); draw_w=plot(

30、handles.axes_t_w,myRecording,'m'); ylabel('Amplitude'); xlabel('Time '); title('时域信号'); fs=handles.fs_chose; % y1=myRecording; % L=length(y1); NFFT = 2nextpow2(L); % Next power of 2 from length of y Y = fft(y1,NFFT)/L; f = fs/2*linspace(0,1,NFFT/2+1); % Plot single-si

31、ded amplitude spectrum. axes(handles.axes_fft_w); draw_fft_w=plot(f,2*abs(Y(1:NFFT/2+1),'m'); title('频域信号') xlabel('Frequency (Hz)') ylabel('|Y(f)|') % xFFT = fft(data); % % xfft = abs(xFFT); % % % Avoid taking the log of 0. % index = xfft = 0; % xfft(index) = 1e-17;

32、% % mag = 20*log10(xfft); % % mag = mag(1:blockSize/2); % % f = (0:length(mag)-1)*Fs/blockSize; % f = f(:); % axes(handles.axes_fft_w); % draw_fft_w=plot(f(:,1),mag(:,1); % ylabel('Magnitude (dB)'); % xlabel('Frequency (Hz)'); % title('频谱图'); % Fw=fft(myRecording,4096); % axe

33、s(handles.axes_fft_w); % draw_fft_w=plot(handles.axes_fft_w,abs(Fw); % title('频域信号'); % xlabel('w'); % ylabel('幅值'); handles.draw_fft_w=draw_fft_w; guidata(hObject,handles); handles.draw_plot_w=draw_w; guidata(hObject,handles); % case 2 % msgbox('妖孽!哪里逃','haha'

34、;,'Icon'); end end case 1 FileName=handles.FileName; y1,fs=audioread(FileName); axes(handles.axes_t_m); draw_fft_m=plot(y1); ylabel('Amplitude'); xlabel('Time '); title('时域信号'); L=length(y1); %set(gca,'ylim',0 2) % myRecording = getaudiodata(aa,'uint8'

35、); NFFT = 2nextpow2(L); % Next power of 2 from length of y Y = fft(y1,NFFT)/L; f = fs/2*linspace(0,1,NFFT/2+1); % Plot single-sided amplitude spectrum. axes(handles.axes_fft_m); draw_fft_m=plot(f,2*abs(Y(1:NFFT/2+1); title('频域信号'); xlabel('Frequency (Hz)'); ylabel('|Y(f)|');

36、% Fs=16000; % %data=myRecording; % % blockSize=length(data); % xFFT = fft(data); % % xfft = abs(xFFT); % % % Avoid taking the log of 0. % index = xfft = 0; % xfft(index) = 1e-17; % mag = 20*log10(xfft); % % mag = mag(1:blockSize/2); % f = (0:length(mag)-1)*Fs/blockSize; % f = f(:); % axes(handles.ax

37、es_fft_m); % draw_fft_m=plot(f(:,1),mag(:,1); % ylabel('Magnitude (dB)'); % xlabel('Frequency (Hz)'); % title('频谱图');end % - Executes on button press in pushbutton_play.function pushbutton_play_Callback(hObject, , handles)% hObject handle to pushbutton_play (see GCBO)% eventd

38、ata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global local_yn;%keyboard;switch local_yn case 0 if(str2double(get(handles.et_time,'String')=0) %添加str2double 后正常 msgbox('亲 别逗好吗？请录音或者选择本地文件先。 ','Error','Icon');