Extract only the voiced part from a wav file?

Read a wav file, i.e. a word, and then estimate only the voiced part of the file (only where there is activity). Save it in a new file and process it further.

Answer 1

[KALYAN ACHARJYA]

%Test for Audio Extraction % Source@Stack Overflow
file='wav.AVI';  %  Wav input file 
file1='targetfile.wav';
hmfr= video.MultimediaFileReader(file,'AudioOutputPort',true,'VideoOutputPort',false);
hmfw = video.MultimediaFileWriter(file1,'AudioInputPort',true,'FileFormat','WAV');
while ~isDone(hmfr)
audioFrame=step(hmfr);
step(hmfw,audioFrame);  
end
close(hmfw);
close(hmfr);
%end