do those value make sense for the orientation your are holding the sensor at? If you multiply them by 65536, they should be the same that you were getting in the earlier C program.
You should definitely get some sound from at least one audio channel, especially when the values are above 0.1. I further amended both the Pd patch and C++ file (still available at the links above) so that it also removes a DC offset, but that should at most cause extra distortion, not just prevent sound from coming out. Anyhow, once you see that reasonable values are being printed, then you should be able to use those values in your program with whatever sound generator you see fit.
