隐马尔科夫模型源代码及说明（详细）

function varargout = HMM_VoiceRecognation(varargin) % HMM_VOICERECOGNATION MATLAB code for HMM_VoiceRecognation.fig % HMM_VOICERECOGNATION, by itself, creates a new HMM_VOICERECOGNATION or raises the existing % singleton*. % % H = HMM_VOICERECOGNATION returns the handle to a new HMM_VOICERECOGNATION or the handle to % the existing singleton*. % % HMM_VOICERECOGNATION('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in HMM_VOICERECOGNATION.M with the given input arguments. % % HMM_VOICERECOGNATION('Property','Value',...) creates a new HMM_VOICERECOGNATION or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before HMM_VoiceRecognation_OpeningFcn gets called. An % unrecognized property name or invalid value makes property application % stop. All inputs are passed to HMM_VoiceRecognation_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 HMM_VoiceRecognation % Last Modified by GUIDE v2.5 06-Jul-2013 19:40:32 % Begin initialization code - DO NOT EDIT gui_Singleton = 1; gui_State = struct('gui_Name', mfilename, ... 'gui_Singleton', gui_Singleton, ... 'gui_OpeningFcn', @HMM_VoiceRecognation_OpeningFcn, ... 'gui_OutputFcn', @HMM_VoiceRecognation_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 HMM_VoiceRecognation is made visible. function HMM_VoiceRecognation_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 HMM_VoiceRecognation (see VARARGIN) % Choose default command line output for HMM_VoiceRecognation handles.output = hObject; % Update handles structure guidata(hObject, handles); % UIWAIT makes HMM_VoiceRecognation wait for user response (see UIRESUME) % uiwait(handles.figure1); % --- Outputs from this function are returned to the command line. function varargout = HMM_VoiceRecognation_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 button_choose. function button_choose_Callback(hObject, eventdata, handles) % hObject handle to button_choose (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % fname: 返回文件名 % panme: 返回文件路径名 % index: 选择的文件类型 global fname global pname [fname, pname, index] = uigetfile( { '*.wav', '选择语音文件'} ) ; set( handles.button_reco, 'Enable', 'on' ) % --- Executes on button press in button_reco. function button_reco_Callback(hObject, eventdata, handles) % hObject handle to button_reco (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) global fname global pname global str filename = strcat( pname, '\\', fname ) ; load('hmm.mat') % 发音 [ y, fs ] = wavread(filename) ; sound(y, fs) ; % 识别 x = wavread(filename); [x1 x2] = vad(x); m = mfcc(x); m = m(x1-2:x2-2,:); for j=1:10 pout(j) = viterbi(hmm{j}, m); end [d,result_index] = max(pout); %在static text里显示结果 if result_index == 10 result_index = result_index - 10 ; end str1 =[ '文件',fname, '的识别结果是：', num2str(result_index), 10 ] ; str = [str, str1] ; set( handles.edit1, 'string', str ) set( hObject, 'Enable', 'off' ) % --- Executes on button press in button_train. function button_train_Callback(hObject, eventdata, handles) % hObject handle to button_train (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) load('samples.mat') h = waitbar ( 0, 'HMM parameter training process' ) ; for i=1:length(Samples) sample=[]; for k=1:length(Samples{i}) sample(k).wave=Samples{i}{k}; sample(k).data=[]; end hmm{i}=train(sample,[3 3 3 3]); s = [ 'HMM parameter training process: ', num2str( ceil ( 100*i / length(Samples) ) ), '%' ] ; waitbar ( i/( length(Samples) ), h, s ) ; end pause (0.5) close(h) % --- Executes on button press in button_exit. function button_exit_Callback(hObject, eventdata, handles) % hObject handle to button_exit (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) clear all close % --- Executes on selection change in listbox1. function listbox1_Callback(hObject, eventdata, handles) % hObject handle to listbox1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) % Hints: contents = cellstr(get(hObject,'String')) returns listbox1 contents as cell array % contents{get(hObject,'Value')} returns selected item from listbox1 % --- Executes during object creation, after setting all properties. function listbox1_CreateFcn(hObject, eventdata, handles) % hObject handle to listbox1 (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles empty - handles not created until after all CreateFcns called % Hint: listbox 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 % --- Executes on button press in button_clear. function button_clear_Callback(hObject, eventdata, handles) % hObject handle to button_clear (see GCBO) % eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) set( handles.edit1, 'string', '' ) clear all