[mad-dev] Quantizing mad_fixed_t?
Thu, 3 Jul 2003 13:26:39 +0200
I see that the algorithm for 32 bit output in madplay quantizes to 24 bit; I'm
a little daft when it comes to fixed point representations, but why are some
of the fractional bits discarded even when you're outputting in full 32
There's also one more thing I don't understand; the original sign bit of the
fixed point number isn't kept (as far as I can see), instead the least
significant whole part bit occupies the sign position. Does this whole part
bit represent the sign (a little confused here)?