代码.zip_RLS语音_lms算法_rls去噪_语音 去噪_语音去噪

function varargout = untitled(varargin) %UNTITLED M-file for untitled.fig % UNTITLED, by itself, creates a new UNTITLED or raises the existing % singleton*. % % H = UNTITLED returns the handle to a new UNTITLED or the handle to % the existing singleton*. % % UNTITLED('Property','Value',...) creates a new UNTITLED using the % given property value pairs. Unrecognized properties are passed via % varargin to untitled_OpeningFcn. This calling syntax produces a % warning when there is an existing singleton*. % % UNTITLED('CALLBACK') and UNTITLED('CALLBACK',hObject,...) call the % local function named CALLBACK in UNTITLED.M with the given input % arguments. % % *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 untitled % Last Modified by GUIDE v2.5 09-May-2006 17:38:13 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @untitled_OpeningFcn, ... 'gui_OutputFcn', @untitled_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 untitled is made visible. function untitled_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 unrecognized PropertyName/PropertyValue pairs from the % command line (see VARARGIN) % Choose default command line output for untitled handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes untitled wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = untitled_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 select. function select_Callback(hObject, eventdata, handles) % hObject handle to select (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) [filename, pathname] = ... uigetfile({'*.wav'},'File Selector'); if isequal(filename,0)|isequal(pathname,0) return; else str=[pathname,filename]; setappdata(handles.figure1,'str',str); [Y,FS]=wavread(str); %读取声音信号 SigLength=length(Y); %计算信号长度 t=(0:SigLength-1)/FS; axes(handles.axes1); plot(t,Y); set(gca,'YLim',[-1 1]); xlabel('t1:时间'); ylabel('Y（原音）'); title('原始语音信号') end % --- Executes on button press in test2. function test2_Callback(hObject, eventdata, handles) % hObject handle to test2 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) str2= getappdata(handles.figure1,'str'); [Y,FS,NBITS]=wavread(str2); %读取声音信号 sound(Y); % --- Executes on selection change in popupmenu1. function popupmenu1_Callback(hObject, eventdata, handles) % hObject handle to popupmenu1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: contents = get(hObject,'String') returns popupmenu1 contents as cell array % contents{get(hObject,'Value')} returns selected item from popupmenu1 axes(handles.axes2); popup_sel_index = get(handles.popupmenu1, 'Value'); str2= getappdata(handles.figure1,'str'); [Y,FS]=wavread(str2); %读取声音信号 SigLength=length(Y); %计算信号长度 t=(0:SigLength-1)/FS; switch popup_sel_index case 1 case 2 x1=1/2*sin(2*pi*5000*t); xn=x1+0.02*x1.*randn(size(x1)); xn=xn'; xs=Y+xn; setappdata(handles.figure1,'xs',xs); plot(t,xs); set(gca,'YLim',[-2 2]); xlabel('t1:时间'); title('加噪后的语音信号') spPower=sum(abs(Y( : )).^2)/length(Y( : )); noPower=sum(abs(xn( : )).^2)/length(xn( : )); spPower=10*log10(spPower); noPower=10*log10(noPower); SNR=spPower-noPower; set(handles.edit4,'string',num2str(SNR)); case 3 xn=sin(2*pi*120*t); xn=xn'; xs=Y+xn; setappdata(handles.figure1,'xs',xs); plot(t,xs); set(gca,'YLim',[-2 2]); xlabel('t1:时间'); title('加噪后的语音信号') spPower=sum(abs(Y( : )).^2)/length(Y( : )); noPower=sum(abs(xn( : )).^2)/length(xn( : )); spPower=10*log10(spPower); noPower=10*log10(noPower); SNR=spPower-noPower; set(handles.edit4,'string',num2str(SNR)); case 4 xs=awgn(Y,10);%加入高斯白噪声，信噪比随机产生 setappdata(handles.figure1,'xs',xs); xn=xs-Y; plot(t,xs); set(gca,'YLim',[-2 2]); xlabel('t1:时间'); title('加噪后的语音信号') spPower=sum(abs(Y( : )).^2)/length(Y( : )); noPower=sum(abs(xn( : )).^2)/length(xn( : )); spPower=10*log10(spPower); noPower=10*log10(noPower); SNR=spPower-noPower; set(handles.edit4,'string',num2str(SNR)) end % --- Executes on button press in test3. function test3_Callback(hObject, eventdata, handles) % hObject handle to test3 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) xs1= getappdata(handles.figure1,'xs'); sound(xs1) % --- Executes during object creation, after setting all properties. function popupmenu1_CreateFcn(hObject, eventdata, handles) % hObject handle to popupmenu1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: popupmenu controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function edit1_Callback(hObject, eventdata, handles) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: get(hObject,'String') returns contents of edit1 as text % str2double(get(hObject,'String')) returns contents of edit1 as a double % --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles) % hObject handle to edit1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows. % See ISPC and COMPUTER. if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor')) set(hObject,'BackgroundColor','white'); end function edit4_Callback(hObject, eventdata, handles) % hObject handle to edit4 (see GCBO) % eventdata reserved - to be defined in a futu