Looking to have processing in a subpatcher turned off when there isn't a signal going into it.

Only thing I can think of is a poly~ object with one voice. Any simpler way to handle this?

subpatcher-off-unless-signal-in

https://cycling74.com/docs/max5/refpages/msp-ref/mute~.html

You can also use pcontrol to enable or disable a sub patcher.

Use the mute~ object...
https://cycling74.com/docs/max5/refpages/msp-ref/mute~.html

You can also use pcontrol to enable or disable a sub patcher.


Ideally it would do it automatically, without any external thing having to be triggered (this is for 48 separate filters, so the less I have to track the better). I don't believe either of the things you suggested would do this?

Ideally it would  do it automatically, without any external thing having to be triggered (this is for 48 separate filters, so the less I have to track the better). I don't believe either of the things you suggested would do this?


Does this do the work? I am not a big fan of poly~, but that's probably because I haven't really used it much (and don't know how to use it well). It's a simple "if signal goes through, activate; if no signal goes through, deactivate" thing - it activates/deactivates both signal in and signal out, but you may or may not want that..

subpatcher off unless signal in