[PD] [threshold~]

[Alex from Idoia]

Hello,
  I would like some precisions regarding the arguments of that object:
- how the arguments 1 and 3 (trigger threshold and trigger rest) are 
expressed ? I guess is not in db ?
I tried to use -15 0 -15 0 to trigger a bang with a signal over -15db 
but it does not seem to work that way.
- If the arguments 2 and 4 are set to 0 that means the bang threshold 
and the rest threshold can be trigger almost simultaneously ? (I am 
thinking in a case of picks of signal)
- what are the right inlets used for then ?
Thanks