The noise waveform can be used to provide a wide range of sound effects. This example mimics a hand clap using a filtered noise waveform:

EXAMPLE PROGRAM 8:

 10 S=54272
 20 FORL=0TO24:POKES+L,0:NEXT
 30 POKES+0,240:POKES+1,33
 40 POKES+5,8
 50 POKES+22,104
 60 POKES+23,1
 70 POKES+24,79
 80 FORN=1TO15
 90 POKES+4,129
 100 FORT=1TO250:NEXT:POKES+4,128
 110 FORT=1TO30:NEXT:NEXT
 120 POKES+24,0

LINE-BY-LINE EXPLANATION OF EXAMPLE PROGRAM 8:

Line(s)	Description
10	Set S to start of sound chip.
20	Clear all sound chip registers.
30	Set high and low frequencies for voice 1.
40	Set Attack/Decay for voice I (A=0, D=8).
50	Set high cutoff frequency for filter.
60	Turn on filter for voice 1.
70	Set volume 15, high-pass filter.
80	Count 15 claps.
90	Set start noise waveform control.
100	Wait, then set stop noise waveform control.
110	Wait, then start next clap-
120	Turn off volume.