Assignment 4: Tube simulation download in ~220/projects/ the file assig4.tar.gz uncompress and load as a project in anjuta add the main.cpp source file into the project (see assig3 for hints) this code should look similar to "filter.cpp" shown in class strip out the IIR, just leave FIR moving average (same as book) test with click (see the 2-sample smear) disable (temporarily) by commenting out or just ignoring output add a delay and loop it's output to it's input (feedback) and also to the DAC calculate tube's time delay (round trip) and setDelay in samples test with click, check resulting pitch with Snd, adjust insert FIR in delay loop shorten tone to same duration as tube (reduce FIR gain `g') turn in sonograms of real & simulated