I'm a merchant sailor turned computer science researcher who happens to be a ham as well... Hence the following 'might' make some sense ;-)
I want to have a go at decoding a transmission mode called Gaussian Minimised Shift Keying (GMSK). This is the mode used by shipboard UAIS (Universal Automated Information System) transponders. For information on UIAS see http://www.ais.org
I'm not aware of any software that can decode GMSK transmissions. If there is, I'd love to hear about it! Alternatively, I'm looking for technical information about how to program a soundcard, preferrably under Linux. I'm apathetic about programming language, any will do.