[PD] messages into [bp~ ] audio input trigger impulses?

[Peter P.]

Hi,

just found out by accident that one can send number messages into the
first audio input of the [bp~ ] bandpass filter. They seem to be treated
as audio signal values and cause an audio signal to be output by [bp~ ].
Is this intentional?

Furthermore, the help patch for signal arithmetic objects says, that
they accept numeric messages into their right inlet if a numeric
argument hast been supplied. It seems this is not (always?) required.

cheers, P