Ok, there is @katjav PD-double:

http://www.katjaas.nl/doubleprecision/doubleprecision.html

https://github.com/pd-projects/pd-double

*How about Purr-Data-double? *

@lacuna

FYI: Spaghettis < https://github.com/Spaghettis/Spaghettis > uses double precision floats.

And also < https://git.purrdata.net/jwilkes/summer-of-code-ideas-list#change-to-double-precision-floating-format >.

*How about Purr-Data-double? *

We're working on it atm as part of Google Summer of Code. The core should be ready pretty soon for double-precision.

If you'd like to help participate/test, you can join the dev list:

http://disis.music.vt.edu/cgi-bin/mailman/listinfo/l2ork-dev