The archive contains the solution to the lab09 problem form "Digital Processing First" of McClellan. It treats the digital signal recognition problem via spectrum comparison. All m-files necessary to solve the problem are provided and enriched by comprehensive comments in the code. Cheers

dtmfdesign.m
dtmfdial.m
dtmfrun.m
dtmfscore.m
firfilt.m
start.m
dtmfcut.m

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