301: A Log on DSP

This week we built a MATLAB program to play Smoke on the Water.

We used this chart to map the notes to frequencies (http://www.phy.mtu.edu/~suits/notefreqs.html) . Afterward, we had to echo the signal through convolution, so we multiplied a decaying exponential by square wave that we raised by its amplitude in order to create a decaying echo. We might have made the echo longer or decay faster, but we like the way it sounds.

SmokeontheWater

http://301.jacpot.us/wp-content/uploads/2009/09/SmokeontheWater.m