ARIA2 (Ambiguous Restraints for Iterative Assignment)
I just came across a publication DOI describing ARIA2 (Ambiguous Restraints for Iterative Assignment) is a software for automated NOE assignment and NMR structure calculation.
ARIA comes as a software library written in the object-oriented programming language Python. The modular design makes it easy for the user to extend and modify the program. The GUI is based on the graphics libraries Tcl/Tk and Tix, interfaced by Python.
ARIA runs on Linux, SGI machines and Mac OS X.
More details can be found on the website http://aria.pasteur.fr.
I've added ARIA2 to the spectroscopy page.