How can I record,pause and keep recording with Matlab functions?

I am trying to record, pause, and record again an audio with this code, but it doesn't work true and only the last time I push the record, the sound recorded and before efforts lose.

How should I use pause and resume function to make a record/pause button?

if state set(hObject,'String','Pause'); resume(handles.rec); else set(hObject,'String','Record'); pause(handles.rec);

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