[...] I will look at the RJDJ filters mentioned also. I would like not to have to worry about filters when programming libpd audio engines.
Absolutely. If a patch works with Pd Vanilla, then it ought to work with libpd. Would you mind filing a bug report at GitHub, ideally with a minimal example that reproduces the problem? Thanks, Peter
Sure, although this is ofxPd from Dan Wilcox, so I'm not sure what the difference is between this and the iOS or Android versions.
Best, Ed