wav声音文件的打开读取 怎么播放出现问题啊

Question

function PB_Open_Callback(hObject, eventdata, handles)
[filename] = uigetfile('*.wav','选择声音文件');
[y,fs] = wavread(filename);
handles.y = y;
N = size(handles.y);
guidata(hObject,handles);
t=0:1/fs:(N(1)-1)/fs;
plot(handles.axes1,t,handles.y);
xlabel(handles.axes1,'Time (s)','fontweight','bold');
ylabel(handles.axes1,'Amplitude','fontweight','bold');
grid(handles.axes1);

Answer 1

是不是声音文件有问题？