function?varargout?=?signal_generator（varargin）

%?Begin?initialization?code?-?DO?NOT?EDIT
gui_Singleton?=?1;
gui_State?=?struct（‘gui_Name‘???????mfilename?...
???????????????????‘gui_Singleton‘??gui_Singleton?...
???????????????????‘gui_OpeningFcn‘?@signal_generator_OpeningFcn?...
???????????????????‘gui_OutputFcn‘??@signal_generator_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?signal_generator?is?made?visible.
function?signal_generator_OpeningFcn（hobject?eventdata?handles?varargin）
handles.output?=?hobject;
global?t;
global?run;
%?text?windos?init?
set（handles.fre_text‘string‘get（handles.fre_slider‘value‘））;
set（handles.amp_text‘string‘get（handles.amp_slider‘value‘））;
%?x?axes?data?
%handles.x?=?linspace（00.03441*3）;
handles.x?=?linspace（01.544100*1.5）;
%?wave?shape?data
handles.shape?=?2;
%?data?init
t?=?0;
run?=?0;
handles
guidata（hobject?handles）;

%?---?Outputs?from?this?function?are?returned?to?the?command?line.
function?varargout?=?signal_generator_OutputFcn（hobject?eventdata?handles）?
varargout{1}?=?handles.output;

function?my_callback（handles）
global?sound_y;
global?plot_y;
global?plot_x;
global?t;
x?=?handles.x;
fre?=?get（handles.fre_slider‘value‘）;
amp?=?get（handles.amp_slider‘value‘）;
%?white?noise?
if?handles.shape?==?1
	sound_y?=?0.5*amp*wgn（144100*1.51）;
%?sin?singal
elseif?handles.shape?==?2
	sound_y?=?amp*sin（2*pi*fre*x）;
%?square?singal
elseif?handles.shape?==?3
	sound_y?=?amp*square（2*pi*fre*x）;
%?trangle?singal
elseif?handles.shape?==?4
	sound_y?=?amp*sawtooth（2*pi*fre*x0.5）;
end
plot_x?=?x（:（1+t）:（3*441+t））;
plot_y?=?sound_y（:（1+t）:（3*441+t））;
plot（handles.monitorplot_xplot_y）;
set（handles.monitor‘ylimmode‘‘manual‘）;
set（handles.monitor‘ylim‘[-20002000]）;
%?get?peak?value
peak_max?=?max（plot_y）;
peak_min?=?min（plot_y）;
peak_value?=?peak_max?-?peak_min;
set（handles.peak‘string‘num2str（peak_value））;
%?get?mean?value
mean_value?=?mean（plot_y）;
set（handles.mean‘string‘num2str（mean_value））;
%?get?rms?value
rms_value?=?rms（plot_y）;
set（handles.rms‘string‘num2str（rms_value））;
%?%?get?frequency?value
%?fre_value?=?fft（plot_y）;
%?aaa?=?abs（fre_value）;
%?[mp]?=?max（aaa）;
%?set（handles.std‘string‘num2str（p））;
%?get?std?error?value
std_value?=?std（plot_y）;
set（handles.std‘string‘num2str（std_value））;


%?---?Executes?on?button?press?in?noise.
function?noise_Callback（hobject?eventdata?handles）
handles.shape?=?1;
guidata（hobject?handles）;
my_callback（handles）;

%?---?Executes?on?button?press?in?square.
function?square_Callback（hobject?eventdata?handles）
handles.shape?=?3;
guidata（hobject?handles）;
my_callback（handles）;

%?---?Executes?on?button?pre