Thanks this actually did work! Had to edit the make file slightly so it would run on the Pi. I think previously it was a 32 bit 64 bit architecture problem since it was pd-vanilla on my PC. Thanks

I'll give that another shot. I think that's what I did originally and it wouldn't work :s.

I am trying to use helmholtz for pd-vanilla but i'm not quite sure about all the externals use in it. Does anyone know and before you say it. I have tried fiddle~ as well as basspitch~ and neither track basspitches as well as helmholtz~. So is there any way I can get helmholtz to work with pd-vanilla. Alternatively can I get pd-extended install on my raspberry pi 3 B+ model with Raspbian/stretch OS ? I have tried a few approaches without any success.

Ok so bit of an update. Installed pure data-extended last night and tested out [helmholtz~] in that this morning before work added the external without any trouble. So seems the problem with others externals may very well have been this 32 vs 64bit discrepancy. Still would love to try and use moog1's basspitch tracker if I can figure out how to get from the c code or output file after compiling the c code to .dll I can use in pure-data. Thanks for your thoughts everyone!

@LiamG Yea I understand getting externals that show up in this search tool. Super handy tool they have implemented. What I'm trying to get a grasp on is a.) how to go from an externals raw C code to something I can use in Pd and b.) how to use Externals that you can find online. I'm fairly certain I've added them to path correctly so it could just be this 32bit vs 64 bit discrepency that's messing me up. I am OK with comping, as in I can do it but definitely not great. I might read up a bit on compiling and see if I can compile some of the 32 bit externals as 64 bit. That's what you mean ya? I kind of assumed (for not particular reason) there was more to conversion of 32 and 64 bit than just the way it's compiled.

Hey,
I've recently switched from MAX/MSP to pure data because I plan to put my patch in its final form on a raspberry pi however I'm having a hard time installing externals that I found online. More specifically I want to do pitch tracking on bass guitar and I found this post
https://forum.pdpatchrepo.info/topic/5964/bass-pitch-tracker
it sounds like it does precisely what I need so I downloaded and compiled the C code I'm just no sure how to get from the output file to a .dll I can use in pure data.

In general a little lost on how to install externals that don't come up into the search into pure data. I've been searching for tutorials but haven't been able to find one that helps me. Any help on the matter is greatly appreciated!
Cheers,
Trevor Naumann