Played when an invader is hit.
The upper half of the circuit is similar to that of the ufo hit. In fact, the only differences are different values for R2 and C1 in the first module. According to the application notes (see AN72, 7.5) this makes it so that the output is now a positive ramp sawtooth waveform (rather than a triangle wave).
The module in the lower left corner is a one-amplifier one-shot (positive pulse) as described in AN72, 9.5.3.
Copyright (c) 2004 Alessandro Scotti. All rights reserved.
|Home :: Computer Programming :: Space Invaders soundboard|