一、簡介
基于matlab GUI MP3設計
二、源代碼
function varargout = myaudioplayer(varargin)
% MY_MUSIC_ANALYSIS_SOFTWARE M-file for my_music_analysis_software.fig
% MY_MUSIC_ANALYSIS_SOFTWARE, by itself, creates a new MY_MUSIC_ANALYSIS_SOFTWARE or raises the existing
% singleton*.
%
% H = MY_MUSIC_ANALYSIS_SOFTWARE returns the handle to a new MY_MUSIC_ANALYSIS_SOFTWARE or the handle to
% the existing singleton*.
%
% MY_MUSIC_ANALYSIS_SOFTWARE('CALLBACK',hObject,eventData,handles,...) calls the local
% function named CALLBACK in MY_MUSIC_ANALYSIS_SOFTWARE.M with the given input arguments.
%
% MY_MUSIC_ANALYSIS_SOFTWARE('Property','Value',...) creates a new MY_MUSIC_ANALYSIS_SOFTWARE or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before myaudioplayer_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to myaudioplayer_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 my_music_analysis_software
% Last Modified by GUIDE v2.5 14-Jun-2014 17:43:41
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @myaudioplayer_OpeningFcn, ...
'gui_OutputFcn', @myaudioplayer_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 my_music_analysis_software is made visible.
function myaudioplayer_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 my_music_analysis_software (see VARARGIN)
% Choose default command line output for my_music_analysis_software
handles.output = hObject;
handles.output = hObject;
setappdata(handles.my_music_analysis_software,'Max',0);
setappdata(handles.my_music_analysis_software,'fpath',0);
set(handles.my_music_analysis_software,'defaultAxesColor',[0.4 0.5 0.7])
handles.timer1= timer('Period',0.01,'ExecutionMode','FixedRate','TimerFcn',{@PlotUpdate,handles});
%handles.timer2= timer('ExecutionMode','singleShot','TimerFcn',{@close,handles});
% Update handles structure
guidata(hObject, handles);
global n stop1 fs C m a b color1 color2 colorOrder1 ;
n=10;m=0;color1='b';color2='c';
stop1=0;
C=zeros(1,5);
fs=11025;
[a,b]=coef();
colorOrder1 = ['r';'g'; 'b';'c';'m';'y';'k';'w'];
set(handles.jindu_var,'min',0);
set(handles.jindu_var,'max',100);
equalizer_plot();
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes my_music_analysis_software wait for user response (see UIRESUME)
% uiwait(handles.my_music_analysis_software);
% --- Outputs from this function are returned to the command line.
function varargout = myaudioplayer_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_load.
function button_load_Callback(hObject, eventdata, handles)
% hObject handle to button_load (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
stop(handles.timer1);
global n stop1 x y fs C w fpath step w1 w2 w3 w4 w5 a b;
n=1;
[filename, pathname] = uigetfile( ...
{'*.wav', 'All Image Files (*.wav)'; ...
'*.*', 'All Files (*.*)'}, ...
'Pick a wave');
if isequal(filename,0) || isequal(pathname,0),
return;
end
fpath=[pathname filename];
y=wavread(fpath);
w1=filter(10^(C(1)/20)*b{1},a{1},y);
w2=filter(10^(C(2)/20)*b{2},a{2},y);
w3=filter(10^(C(3)/20)*b{3},a{3},y);
w4=filter(10^(C(4)/20)*b{4},a{4},y);
w5=filter(10^(C(5)/20)*b{5},a{5},y);
w=w1+w2+w3+w4+w5;
% w=y;
x=audioplayer(y,fs);
stop1=0;
Max=length(y);
setappdata(handles.my_music_analysis_software,'Max',Max);
setappdata(handles.my_music_analysis_software,'fpath',fpath);
set(handles.jindu_var,'max',100);
str=ConvTime(fix(x.TotalSamples/fs));
set(handles.text_begin,'string','0:00');
set(handles.text_end,'string',str);
step=fix(x.TotalSamples/fs/4);
%Info= strcat('正在播放: ',filename);
set(handles.text_info,'string',filename);
guidata(hObject,handles);
% --- Executes on button press in button_play.
function button_play_Callback(hObject, eventdata, handles)
% hObject handle to button_play (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global x w fs stop1;
x=audioplayer(w,fs);
play(x);
stop1=0;
start(handles.timer1);
% --- Executes on button press in button_pause.
function button_pause_Callback(hObject, eventdata, handles)
% hObject handle to button_pause (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global stop1 x ;
stop1=1;
pause(x);
guidata(hObject,handles);
% --- Executes on button press in button_continue.
function button_continue_Callback(hObject, eventdata, handles)
% hObject handle to button_continue (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global stop1 x ;
stop1=0;
resume(x);
% --- Executes on button press in button_stop.
function button_stop_Callback(hObject, eventdata, handles)
% hObject handle to button_stop (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)
global x;
stop(x);
stop(handles.timer1);
function PlotUpdate(obj,events,handles)
global n w stop1 x fs t color1;
str=ConvTime(fix(x.CurrentSample/fs));
set(handles.text_time_info,'Visible','on');
set(handles.text_time,'string',str);
if (stop1==0)
if(isplaying(x))
t=x.CurrentSample/x.TotalSamples;
set(handles.jindu_var,'value',100*t)
Max=getappdata(handles.my_music_analysis_software,'Max');
fpath=getappdata(handles.my_music_analysis_software,'fpath');
if 1100*n<Max
m=w(1100*(n-1)+1:1100*n);
M=abs(fft(m));
for s=1:32
Z(s)=mean(M((s-1)*15+1:s*15));
end
axes(handles.axes1);
h1=bar(Z,color1);
axis off;box off;
set(h1,'ButtonDownFcn',{@Changecolor, 1});
end
n=n+1;
end
end
% --- Executes on slider movement.
function jindu_var_Callback(hObject, eventdata, handles)
% hObject handle to jindu_var (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,'Value') returns position of slider
% get(hObject,'Min') and get(hObject,'Max') to determine range of slider
global x n;
duty=get(hObject,'value');
Setting=x.TotalSamples*duty/100;
Cul=x.CurrentSample;
stop(x);
play(x,Setting);
n=fix(Setting/1100);
% --- Executes during object creation, after setting all properties.
function jindu_var_CreateFcn(hObject, eventdata, handles)
% hObject handle to jindu_var (see GCBO)
% eventdata reserved - to be defined in a future version of MATLAB
% handles empty - handles not created until after all CreateFcns called
% Hint: slider controls usually have a light gray background.
if isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor',[.502 .502 .502]);
end
三、運行結果
四、備注
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