声音倒放挑战(MATLAB guide)

function varargout = Task704(varargin) % TASK704 MATLAB code for Task704.fig % TASK704, by itself, creates a new TASK704 or raises the existing % singleton*. % % H = TASK704 returns the handle to a new TASK704 or the handle to % the existing singleton*. % % TASK704('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in TASK704.M with the given input arguments. % % TASK704('Property','Value',...) creates a new TASK704 or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before Task704_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to Task704_OpeningFcn via varargin. % % *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)". % % See also: GUIDE, GUIDATA, GUIHANDLES % Edit the above text to modify the response to help Task704 % Last Modified by GUIDE v2.5 13-Jun-2020 12:48:08 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @Task704_OpeningFcn, ... 'gui_OutputFcn', @Task704_OutputFcn, ... 'gui_LayoutFcn', [] , ... 'gui_Callback', []); 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 % End initialization code - DO NOT EDIT % --- Executes just before Task704 is made visible. function Task704_OpeningFcn(hObject, eventdata, handles, varargin) % This function has no output args, see OutputFcn. % hObject handle to figure % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % varargin command line arguments to Task704 (see VARARGIN) % Choose default command line output for Task704 handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes Task704 wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = Task704_OutputFcn(hObject, eventdata, 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 structure with handles and user data (see GUIDATA) % Get default command line output from handles structure varargout{1} = handles.output; % --- Executes on button press in pushbutton2. function pushbutton2_Callback(hObject, eventdata, handles) global R fs fs =44100;%采样频率 R=audiorecorder(fs,16,1);%定义存放音频的变量R record(R);%开始录制音频，直到按下停止录制按钮 % 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) % --- Executes on button press in pushbutton3. function pushbutton3_Callback(hObject, eventdata, handles) global R voice_data fs stop(R)%停止录制 voice_data = getaudiodata(R);%对音频取样，数字化处理 audiowrite('voice_data.wav',voice_data,fs,'BitsPerSample',24)%保存音频为voice_data.wav % 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) % --- Executes on button press in pushbutton4. function pushbutton4_Callback(hObject, eventdata, handles) global V0 fs [V0,fs]= audioread('voice_data.wav'); sound(V0,fs)%播放音频 % hObject handle to pushbutton4 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % --- Executes on button press in pushbutton5. function pushbutton5_Callback(hObject, eventdata, handles) global data V0 fs t %画出原音的时域图 data = V0; t=(1:length(data))/fs;%定义音频时间 axes(handles.axes1); plot(t,data); grid on; set(gca,'fontname','times','fontsize',14,'linewidth',1.1,'box','on') % hObject handle to pushbutton5 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % --- Executes on button press in pushbutton6. function pushbutton6_Callback(hObject, eventdata, handles) global V0 fs sound(flipud(V0),fs) % hObject handle to pushbutton6 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % --- Executes on button press in pushbutton7. function pushbutton7_Callback(hObject, eventdata, handles) global V0 t axes(handles.axes2) plot(t,flipud(V0)) grid on; set(gca,'fontname','times','fontsize',14,'linewidth',1.1,'box','on') % hObject handle to pushbutton7 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)