Hello Tony,
Friday, March 26, 2004, 2:53:52 PM, you wrote: TF> With 16 bit implementation on TI55x how much accuracy you TF> got? And how much accuracy improvement was there by changing the TF> multiplication into 4.28 by 1.31 instead of 4.28 by 4.28 used in TF> MAD decoder?
According to http://www.underbit.com/resources/mpeg/audio/compliance/
in best case limited accuracy is achieved. But in worst case ... rms still C*10^-4 but C - is bigger than limited accuracy require.
4.28x1.31 - I just have to use this one :) This is 3DSP hardware dependent - in another case - like 4.28x4.28 I need to do additional actions... So almost in all places decoder use constants less than 1.0 Only in synthesis part some of them are bigger than 1. But now I am working under synthesis and I am looking in way where constant which are bigger than 1 will be split on 2 part.
After I finish decoder we can measure accuracy :).