实例介绍
【实例简介】
【实例截图】
【核心代码】
function varargout = fenxi(varargin)
% FENXI M-file for fenxi.fig
% FENXI, by itself, creates a new FENXI or raises the existing
% singleton*.
%
% H = FENXI returns the handle to a new FENXI or the handle to
% the existing singleton*.
%
% FENXI('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in FENXI.M with the given input arguments.
%
% FENXI('Property','Value',...) creates a new FENXI or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before fenxi_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to fenxi_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 fenxi
% Last Modified by GUIDE v2.5 12-Oct-2013 17:27:29
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @fenxi_OpeningFcn, ...
'gui_OutputFcn', @fenxi_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 fenxi is made visible.
function fenxi_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 fenxi (see VARARGIN)
% Choose default command line output for fenxi
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes fenxi wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = fenxi_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 luyin.
function luyin_Callback(hObject, eventdata, handles)
% hObject handle to luyin (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
if get(hObject,'Value')
set(handles.luyinpinlv,'Enable','on');
set(handles.dakai,'Value',0);
set(handles.luyinshijian,'Enable','on');
set(handles.luyinqueding,'Enable','on');
set(handles.dakaiqueding,'Enable','off');
set(handles.bofang,'Value',0);
set(handles.bofangpinlv,'Enable','off');
set(handles.bofangqueding,'Enable','off');
set(handles.luyinqueding,'string','开始');
else
end;
% Hint: get(hObject,'Value') returns toggle state of luyin
% --- Executes on button press in dakai.
function dakai_Callback(hObject, eventdata, handles)
% hObject handle to dakai (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
if get(hObject,'Value')
set(handles.luyin,'Value',0);
set(handles.luyinshijian,'Enable','off');
set(handles.luyinqueding,'Enable','off');
set(handles.dakaiqueding,'Enable','on');
set(handles.bofang,'Value',0);
set(handles.bofangpinlv,'Enable','off');
set(handles.bofangqueding,'Enable','off');
set(handles.luyinpinlv,'Enable','off');
else
end;
% Hint: get(hObject,'Value') returns toggle state of dakai
% --- Executes on button press in radiobutton3.
function radiobutton3_Callback(hObject, eventdata, handles)
% hObject handle to radiobutton3 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
% Hint: get(hObject,'Value') returns toggle state of radiobutton3
% --- Executes on button press in luyinqueding.
function luyinqueding_Callback(hObject, eventdata, handles)
% hObject handle to luyinqueding (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
set(hObject,'string','录音中');
pause(0.4);
Fs=str2double(get(handles.luyinpinlv,'String'));
t=str2double(get(handles.luyinshijian,'String'));
ai=analoginput('winsound',0);%初始化录音麦克
chanel=addchannel(ai,1);%1表示单声道
set(ai,'SampleRate',Fs);
duration=t; %录音时间
set(ai,'SamplesPerTrigger',duration*Fs);
start(ai);
y=0;time=0;
[y,time]=getdata(ai);%读出相应的数据
handles.y=y;
handles.Fs=Fs;
guidata(hObject,handles);
plot(handles.huitu,time,handles.y)%画出声音波形
title(handles.huitu,'时域图');
%ysize=size(handles.y);
set(hObject,'string','完毕');
set(handles.baocun,'Enable','on');
% --- Executes on button press in dakaiqueding.
function dakaiqueding_Callback(hObject, eventdata, handles)
% hObject handle to dakaiqueding (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','ALL FILES(*.*)'},'选择声音文件');
if isequal([filename pathname],[0,0])
return;
end
str=[pathname filename];%选择的声音文件路径和文件名
[temp Fs]=wavread(str);%temp表示声音数据 Fs表示频率
handles.y=temp;handles.Fs=Fs;
guidata(hObject,handles);
N=length(handles.y);
f1=0:1/Fs:(N-1)/Fs;
plot(handles.huitu,f1,handles.y)%画出声音波形
title(handles.huitu,'时域图');
xlabel(handles.huitu,'时间/s');
ylabel(handles.huitu,'幅度');
set(handles.baocun,'Enable','on');
set(handles.bofang,'Enable','on');
% --- 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)
function luyinshijian_Callback(hObject, eventdata, handles)
% hObject handle to luyinshijian (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 luyinshijian as text
% str2double(get(hObject,'String')) returns contents of luyinshijian as a double
% --- Executes during object creation, after setting all properties.
function luyinshijian_CreateFcn(hObject, eventdata, handles)
% hObject handle to luyinshijian (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 bofang.
function bofang_Callback(hObject, eventdata, handles)
% hObject handle to bofang (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
if get(hObject,'Value')
set(handles.luyin,'Value',0);
set(handles.luyinshijian,'Enable','off');
set(handles.luyinqueding,'Enable','off');
set(handles.dakaiqueding,'Enable','off');
set(handles.dakai,'Value',0);
set(handles.bofangpinlv,'Enable','on');
set(handles.bofangqueding,'Enable','on');
set(handles.luyinpinlv,'Enable','off');
else
end;
% Hint: get(hObject,'Value') returns toggle state of bofang
function bofangpinlv_Callback(hObject, eventdata, handles)
% hObject handle to bofangpinlv (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 bofangpinlv as text
% str2double(get(hObject,'String')) returns contents of bofangpinlv as a double
% --- Executes during object creation, after setting all properties.
function bofangpinlv_CreateFcn(hObject, eventdata, handles)
% hObject handle to bofangpinlv (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 bofangqueding.
function bofangqueding_Callback(hObject, eventdata, handles)
% hObject handle to bofangqueding (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
c=handles.Fs;
Fs=handles.Fs;
d=handles.y;
yy=handles.y;
contents = cellstr(get(handles.bofangpinlv,'String')) ;%获取listbox1中的细胞矩阵
bj=contents{get(handles.bofangpinlv,'Value')};%获取listbox中的值
if strcmp(bj,'音效')
Fs=c;
elseif strcmp(bj,'快播')
Fs=1.5*c;
elseif strcmp(bj,'倒放')
yy = flipud(d);
elseif strcmp(bj,'回音')
% for i=1:length(handles.y) yy(i)=d(length(handles.y)-i 1); end
a=[zeros(5000,1);d;zeros(5000,1)];%声音延时
e=[zeros(10000,1);d];
b=[d;zeros(10000,1)];%使原声音长度与延时后相等
yy=(a e)*0.6 b;
elseif strcmp(bj,'双声道左右穿行')
for i=1:length(handles.y) yy(i,1)=d(i)*i/162000.0; end
for i=1:length(handles.y) yy(i,2)=d(i)*(length(handles.y)-i)/162000.0; end
%for i=1:length(handles.y) yy(i)=d(length(handles.y)-i 1); end
% Fs=0.5*c;
elseif strcmp(bj,'机器人声')
n1 = 441;
n2 = n1;
WLen= 1024;
w1= hanning(WLen);
w2 = w1;
DAFx_in=d;
FS=Fs;
L= length(DAFx_in);
DAFx_in= [zeros(WLen, 1); DAFx_in; zeros(WLen-mod(L,n1),1)] / max(abs(DAFx_in));
DAFx_out=[zeros(length(DAFx_in),1)];
pin=0;
pout = 0;
pend = length(DAFx_in)-WLen;
while pin<pend
grain = DAFx_in(pin 1:pin WLen).* w1;
f= fft(grain);
r= abs(f);
grain = fftshift(real(ifft(r))).*w2;
DAFx_out(pout 1:pout WLen) = DAFx_out(pout 1:pout WLen) grain;
pin= pin n1;
pout= pout n2;
end
DAFx_out = DAFx_out(WLen 1:WLen L) / max(abs(DAFx_out));
yy= DAFx_out;
elseif strcmp(bj,'男女变声')
Fs=1.5*c;
end;
wavplay(yy,Fs);
%; 162422, num2str(n)
y=fft(yy,length(yy));
% ysize=size(y);检测他的维度
% plot(handles.huitu2,abs(y));原来的
[m,n]=size(d);N=length(yy);
f1=0:Fs/N:Fs*(N-1)/N;
plot(handles.huitu2,f1(1:N/80),y(1:N/80));%f1（1：N/80),y（1：N/80)
xlabel(handles.huitu2,'频率/Hz');
ylabel(handles.huitu2,'幅度');
title(handles.huitu2,'频率特性');
f1=0:1/Fs:(N-1)/Fs;
plot(handles.huitu,f1,yy)%画出声音波形
title(handles.huitu,'时域图');
xlabel(handles.huitu,'时间/s');
ylabel(handles.huitu,'幅度');
grid on;
function luyinpinlv_Callback(hObject, eventdata, handles)
% hObject handle to luyinpinlv (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 luyinpinlv as text
% str2double(get(hObject,'String')) returns contents of luyinpinlv as a double
% --- Executes during object creation, after setting all properties.
function luyinpinlv_CreateFcn(hObject, eventdata, handles)
% hObject handle to luyinpinlv (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 xianshi_Callback(hObject, eventdata, handles)
% hObject handle to xianshi (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 xianshi as text
% str2double(get(hObject,'String')) returns contents of xianshi as a double
% --- Executes during object creation, after setting all properties.
function xianshi_CreateFcn(hObject, eventdata, handles)
% hObject handle to xianshi (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 baocun.
function baocun_Callback(hObject, eventdata, handles)
% hObject handle to baocun (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
Fs=handles.Fs;
[filename]=uiputfile({'*.wav'},'文件保存');
wavwrite(handles.y,Fs,filename);%data表示声音数据
function b2g_Callback(hObject, eventdata, handles)
% hObject handle to b2g_pushbutton (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
%读取音频信息（双声道，16位，频率44100Hz）
% 定义常数
FL = 80; % 帧长
WL = 240; % 窗长
P = 10; % 预测系数个数
data=handles.y;fs=handles.Fs; % 载入语音数据
data= data/max(data); %归一化
L = length(data); % 读入语音长度
FN = floor(L/FL)-2; % 计算帧数
% 预测和重建滤波器
exc = zeros(L,1); % 激励信号（预测误差）
zi_pre = zeros(P,1); % 预测滤波器的状态
s_rec = zeros(L,1); % 重建语音
zi_rec = zeros(P,1);
% 合成滤波器
exc_syn = zeros(L,1); % 合成的激励信号（脉冲串）
s_syn = zeros(L,1); % 合成语音
last_syn = 0; %存储上一个（或多个）段的最后一个脉冲的下标
zi_syn = zeros(P,1); % 合成滤波器的状态
% 变调不变速滤波器
exc_syn_t = zeros(L,1); % 合成的激励信号（脉冲串）
s_syn_t = zeros(L,1); % 合成语音
last_syn_t = 0; %存储上一个（或多个）段的最后一个脉冲的下标
zi_syn_t = zeros(P,1); % 合成滤波器的状态
% 变速不变调滤波器（假设速度减慢一倍）
hw = hamming(WL); % 汉明窗
% 依次处理每帧语音
for n = 3:FN
% 计算预测系数（不需要掌握）
s_w = data(n*FL-WL 1:n*FL).*hw; %汉明窗加权后的语音
[A E] = lpc(s_w, P); %用线性预测法计算P个预测系数
% A是预测系数，E会被用来计算合成激励的能量
s_f = data((n-1)*FL 1:n*FL); % 本帧语音，下面就要对它做处理
% (4) 用filter函数s_f计算激励，注意保持滤波器状态
[exc1,zi_pre] = filter(A,1,s_f,zi_pre);
exc((n-1)*FL 1:n*FL) = exc1; %计算得到的激励
% (5) 用filter函数和exc重建语音，注意保持滤波器状态
[s_rec1,zi_rec] = filter(1,A,exc1,zi_rec);
s_rec((n-1)*FL 1:n*FL) = s_rec1; %计算得到的重建语音
% 注意下面只有在得到exc后才会计算正确
s_Pitch = exc(n*FL-222:n*FL);
PT = findpitch(s_Pitch); % 计算基音周期PT（不要求掌握）
G = sqrt(E*PT); % 计算合成激励的能量G（不要求掌握）
%方法3：本段激励只能修改本段长度
tempn_syn = [1:n*FL-last_syn]';
exc_syn1 = zeros(length(tempn_syn),1);
exc_syn1(mod(tempn_syn,PT)==0) = G; %某一段算出的脉冲
exc_syn1 = exc_syn1((n-1)*FL-last_syn 1:n*FL-last_syn);
[s_syn1,zi_syn] = filter(1,A,exc_syn1,zi_syn);
exc_syn((n-1)*FL 1:n*FL) = exc_syn1; %计算得到的合成激励
s_syn((n-1)*FL 1:n*FL) = s_syn1; %计算得到的合成语音
last_syn = last_syn PT*floor((n*FL-last_syn)/PT);
% (13) 将基音周期减小一半，将共振峰频率增加150Hz，重新合成语音，听听是啥感受～
PT1 =floor(PT/2); %减小基音周期
poles = roots(A);
deltaOMG =150*2*pi/fs;
for p=1:10 %增加共振峰频率，实轴上方的极点逆时针转，下方顺时针转
if imag(poles(p))>0 poles(p) = poles(p)*exp(j*deltaOMG);
elseif imag(poles(p))<0 poles(p) = poles(p)*exp(-j*deltaOMG);
end
end
A1=poly(poles);
tempn_syn_t = [1:n*FL-last_syn_t]';
exc_syn1_t = zeros(length(tempn_syn_t),1);
exc_syn1_t(mod(tempn_syn_t,PT1)==0) = G; %某一段算出的脉冲
exc_syn1_t = exc_syn1_t((n-1)*FL-last_syn_t 1:n*FL-last_syn_t);
[s_syn1_t,zi_syn_t] = filter(1,A1,exc_syn1_t,zi_syn_t);
exc_syn_t((n-1)*FL 1:n*FL) = exc_syn1_t; %计算得到的合成激励
s_syn_t((n-1)*FL 1:n*FL) = s_syn1_t; %计算得到的合成语音
last_syn_t = last_syn_t PT1*floor((n*FL-last_syn_t)/PT1);
end
plot(handles.axes3,s_syn_t),
set(handles.axes3,'Xgrid','on');
set(handles.axes3,'Ygrid','on');
xlabel(handles.axes3,'数据序列');
ylabel(handles.axes3,'频率');
title(handles.axes3,'变音后的时域图'),XLim([0,length(s_syn_t)]);
handles.y=s_syn_t;
guidata(hObject,handles);
Fs=handles.foriginal;
N=length(handles.y);
y1=fft(handles.y,N);
f1=0:Fs/N:Fs*(N-1)/N;
plot(handles.axes1,f1,handles.yoriginal);
title(handles.axes1,'原始时域图');
xlabel(handles.axes1,'时间');
ylabel(handles.axes1,'频率');
set(handles.axes1,'Xgrid','on');
set(handles.axes1,'Ygrid','on');
plot(handles.axes2,f1(1:N/2),y1(1:N/2));
set(handles.axes2,'Xgrid','on');
set(handles.axes2,'Ygrid','on');
title(handles.axes2,'频谱图');
xlabel( handles.axes2,'频率');
ylabel( handles.axes2,'幅度');
pause(3);
sound(handles.yoriginal);
sound(handles.y);
% --- Executes on button press in g2b_pushbutton.
function g2b_Callback(hObject, eventdata, handles)
% hObject handle to g2b_pushbutton (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
y=handles.y;
fs=handles.Fs;%读取音频信息（双声道，16位，频率44100Hz）
N=length(y)
f=0:fs/N:fs*(N-1)/N;
Y=fft(y,N); %进行傅立叶变换
plot(handles.axes2,f(1:N/2),Y(1:N/2));
title(handles.axes2,'声音信号的频谱');
xlabel(handles.axes2,'频率');
ylabel(handles.axes2,'振幅');
f1=0:(fs*0.7)/N:(fs*0.7)*(N-1)/N;
syms t;
t=[0,9];
R=y*exp(2*pi*300*t);
P=fft(R,N);
Z=ifft(P);
z=real(Z);
handles.y=y;
plot(handles.axes3,f1(1:N/2),Z(1:N/2));
title(handles.axes3,'变声后的时域图');
xlabel(handles.axes3,'时间序列');
ylabel(handles.axes3,'频率')
set(handles.axes3,'Xgrid','on');
set(handles.axes3,'Ygrid','on');
Fs=handles.foriginal;
N=length(handles.y);
y1=fft(handles.y,N);
f1=0:Fs/N:Fs*(N-1)/N;
plot(handles.axes1,f1,handles.yoriginal);
title(handles.axes1,'原始时域图');
xlabel(handles.axes1,'时间');
ylabel(handles.axes1,'频率');
set(handles.axes1,'Xgrid','on');
set(handles.axes1,'Ygrid','on');
plot(handles.axes2,f1(1:N/2),y1(1:N/2));
set(handles.axes2,'Xgrid','on');
set(handles.axes2,'Ygrid','on');
title(handles.axes2,'频谱图');
xlabel( handles.axes2,'频率');
ylabel( handles.axes2,'幅度');
pause(3);
guidata(hObject,handles);
sound(handles.yoriginal);
sound(handles.y,handles.foriginal*0.7);
% --- Executes on button press in bijiao_pushbutton.
function bijiao_pushbutton_Callback(hObject, eventdata, handles)
% hObject handle to bijiao_pushbutton (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
handles.y=handles.yoriginal;
handles.Fs=handles.foriginal;
guidata(hObject,handles);
% 计算一段语音的基音周期
function PT = findpitch(s)
[B, A] = butter(5, 700/4000);
s = filter(B,A,s);
R = zeros(143,1);
for k=1:143
R(k) = s(144:223)'*s(144-k:223-k);
end
[R1,T1] = max(R(80:143));
T1 = T1 79;
R1 = R1/(norm(s(144-T1:223-T1)) 1);
[R2,T2] = max(R(40:79));
T2 = T2 39;
R2 = R2/(norm(s(144-T2:223-T2)) 1);
[R3,T3] = max(R(20:39));
T3 = T3 19;
R3 = R3/(norm(s(144-T3:223-T3)) 1);
Top = T1;
Rop = R1;
if R2 >= 0.85*Rop
Rop = R2;
Top = T2;
end
if R3 > 0.85*Rop
Rop = R3;
Top = T3;
end
PT = Top;
return
% --- Executes on key press with focus on bofangpinlv and none of its controls.
function bofangpinlv_KeyPressFcn(hObject, eventdata, handles)
% hObject handle to bofangpinlv (see GCBO)
% eventdata structure with the following fields (see UICONTROL)
% Key: name of the key that was pressed, in lower case
% Character: character interpretation of the key(s) that was pressed
% Modifier: name(s) of the modifier key(s) (i.e., control, shift) pressed
% handles structure with handles and user data (see GUIDATA)
% --- Executes during object creation, after setting all properties.
function axes4_CreateFcn(hObject, eventdata, handles)
% hObject handle to axes4 (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: place code in OpeningFcn to populate axes4
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