I am not getting any audio from this patch. It's a direct copy of a practical from "Designing Sound" by Andy Farnell, 2010.

Specifically, this is the test patch for just testing the sound of an aluminum can that is tapped or struck. I am not getting sound whatsoever. I've checked audio preferences, tested other patches, and am thinking it must be an issue above my current knowledge base.

Thanks y'all

rollingcantest.pd

In the patch the envelope that is supposed to trigger the filters goes through a [*~] object with no multiply (zero gain). Change that to [*~ 1] and see....