libbjack-ocaml-dev 0.1.2-1ubuntu1 (amd64 binary) in ubuntu karmic

 ocaml-bjack is a blocking interface to jack audio connection kit.
 Using it, you can create a jack device and read/write from it
 much like with ALSA or OSS.
 .
 This package contains all the development stuff you need to develop
 OCaml programs which use ocaml-bjack.