minabsaccum — Accumulates the minimum of the absolute values of
audio signals.   minabsaccum compares two audio-rate variables
and stores the minimum of their absolute values into the first.
minabsaccum aAccumulator, aInput   aAccumulator -- audio
variable to store the minimum value  aInput -- signal that
aAccumulator is compared to  The minabsaccum opcode is designed
to accumulate the minimum value from among many audio signals
that may be in different note instances, different channels, or
otherwise cannot all be compared at once using the minabs
opcode. minabsaccum is identical to minaccum except that it
takes the absolute value of aInput before the comparison. Its
semantics are similar to vincr since aAccumulator is used as
both an input and an output variable, except that minabsaccum
keeps the minimum absolute value instead of adding the signals
together. minabsaccum performs the following operation on each
pair of samples:              if  (abs(aInput) < aAccumulator)  
aAccumulator = abs(aInput)  aAcc