BPM Monitor

Here's a little Stream Byter script to monitor the BPM of an incoming clock signal. Merge this scene (or paste the code below) and feed it a clock signal.

The left hand label will show the bpm in whole numbers and the right hand label will show the bpm in 100ths. Note we do have a bit of integer rounding inaccuracy, so the 100ths may not be perfect and may also fluctuate, but it's not too bad.

# bpm monitor by audeonic
IF LOAD
 # tick count
 ASS L0 = 0
END
IF M0 == F8
 MAT I0 = L0 % 18
 IF I0 == 0
   # quarter note
   ASS I1 = T0
   IF L0 != 0
     # 25th tick onwards, interval (ms) in i1
     MAT I2 = EA60 / I1
     SET LB0 I2 +D
     MAT I3 = EA60 % I1
     MAT I1 = I1 / 64
     MAT I3 = I3 / I1
     SET LB1 I3 +D
   END
 END

 MAT L0 = L0 + 1
END
IF M0 >= FA
 IF M0 <= FC
   ASS L0 = 0
 END
END



Regards, Nic.