Music 171 homework 1
This assignment is to make a Pd patch in which an oscillator makes
a sinusoidal tone that, using message boxes as push-buttons, you
can turn on and off without clicking, and whose frequency can slide
between two values.
Make an oscillator with a line~ object to control its
amplitude. Use the out1~ object (downloadable from the main page
using the "patches" link) so that you can easily control the
output.
Set up an additional line~ object to control the oscillator's
frequency.
Make message boxes capable of ramping the amplitude control on
and off. "On" should correspond to an amplitude of about 0.1 to
avoid speaker or ear damage.
Make two more message boxes to cause the frequency to slide to
each of 660 and 440.
Make a fifth message box that sends a "bang" message to both
turn the sound on and set an initial frequency (OK to use one of
the frequency-setting boxes above, but better style to make yet
another one that jumps in zero time to 440.) Label the message
boxes with comments so we can figure out which one is intended to
start everything (setting frequency and amplitude), and which are
to generate the two slides in frequency, and turn the sound
off.
Finally, make a "zip" archive of a directory containing your
patch and a copy of the out1~ patch it uses. To prevent confusion
include your name in the name of the directory (for instance,
"miller-homework1"). Upload it to the course Canvas site.
Here is the demo patch from class (not showing the
implementation):
