Matlab and Music

[filename, filepath] = uigetfile('*.mp3');

if filepath == 0

    set (handles.musicname,'String','None');

else

    set (handles.musicname,'String',filename);

    [Path] = [filepath filename];

    [handles.oridata,handles.fre] = audioread([Path]);

    L = (length(handles.oridata))/handles.fre;

    set (handles.Length,'String',L);

    set (handles.endtime,'String',L);

    handles.player = audioplayer(handles.oridata,handles.fre);

    handles.data = handles.oridata;

    handles.frecha = handles.fre;

    handles.temp = handles.player;

    handles.reverse = flipud(handles.data);

end

global Stime;

global Etime;

if str2double(get(handles.starttime,'String')) == 0

   Stime = 1;

else

    Stime =(str2double (get(handles.starttime,'String')))*handles.fre;

end

if str2double(get(handles.endtime,'String')) == 0

   Etime = 1;

else

    Etime =(str2double (get(handles.endtime,'String')))*handles.fre;

end

if (Stime > Etime)

    handles.data = handles.reverse;

else

    handles.data = handles.oridata;

end

guidata(hObject,handles);

Volume = get(handles.Vsilder, 'Value');

set(handles.volume,'String',Volume);

global Stime;

global Etime;

if (Stime > Etime)

    handles.data = (Volume)*(handles.reverse);

else

    handles.data = (Volume)*(handles.oridata);

end

if isplaying(handles.temp)

    pause(handles.temp);

    sample = handles.temp.CurrentSample;

    handles.run = audioplayer(handles.data,handles.frecha);

    play(handles.run,sample);

else

    sample = handles.temp.CurrentSample;

    handles.run = audioplayer(handles.data,handles.frecha);

    play(handles.run,sample);

    pause(handles.run);

end

handles.temp = handles.run;

guidata(hObject,handles);

Frequency = get(handles.Frqslider,'Value');

set(handles. frequency,'String',Frequency);

handles.frecha = (Frequency)*(handles.fre);

if isplaying(handles.temp)

    pause(handles.temp);

    sample = handles.temp.CurrentSample;

    handles.temp = audioplayer(handles.data,handles.frecha);

    play(handles.temp,sample);

else

    sample = handles.temp.CurrentSample;

    handles.temp = audioplayer(handles.data,handles.frecha);

    play(handles.temp,sample);

    pause(handles.temp);

end

guidata(hObject,handles);

stop(handles.temp);

global Stime;

global Etime;

if str2double(get(handles.starttime,'String')) == 0

   Stime = 1;

else

    Stime =(str2double (get(handles.starttime,'String')))*handles.fre;

end

if str2double(get(handles.endtime,'String')) == 0

   Etime = 1;

else

    Etime =(str2double (get(handles.endtime,'String')))*handles.fre;

end

if (Stime > Etime)

    handles.data = handles.reverse;

else

    handles.data = handles.oridata;

end

guidata(hObject,handles);

stop(handles.temp);

global Stime;

global Etime;

if str2double(get(handles.starttime,'String')) == 0

   Stime = 1;

else

    Stime =(str2double (get(handles.starttime,'String')))*handles.fre;

end

if str2double(get(handles.endtime,'String')) == 0

   Etime = 1;

else

    Etime =(str2double (get(handles.endtime,'String')))*handles.fre;

end

if (Stime > Etime)

    handles.data = handles.reverse;

else

    handles.data = handles.oridata;

end

guidata(hObject,handles);

set(handles.volume,'String',1);

set(handles. frequency,'String',1);

set(handles.Frqslider,'Value',1);

set(handles.Vsilder,'Value',1);

global Stime;

global Etime;

if (Stime > Etime)

    handles.data = handles.reverse;

else

    handles.data = handles.oridata;

end

handles.frecha = handles.fre

if isplaying(handles.temp)

    pause(handles.temp);

    sample = handles.temp.CurrentSample;

    handles.temp = audioplayer(handles.data,handles.fre);

    play(handles.temp,sample);

else

    handles.temp = audioplayer(handles.data,handles.fre);

    sample = handles.temp.CurrentSample;

    play(handles.temp,sample);

    pause(handles.temp);

end

guidata(hObject,handles);