1  loadrt threads
 2  loadrt ilowpass
 3  addf ilowpass.0 thread1
 4  setp ilowpass.0.scale 100000
 5  setp ilowpass.0.in 21474
 6  setp ilowpass.0.gain 1
 7  start
 8  loadusr -w sleep .1
 9  getp ilowpass.0.out
10  setp ilowpass.0.in 21475
11  loadusr -w sleep .1
12  getp ilowpass.0.out