efficient search methods. This software was applicable not ody
, to digital filters but to complex systems, such as the 8 x 8 IDCT
conforming to the IEEE specifications, CELP speech vocoder, and
MPEG audio algorithms as well. Although the optimization results
are dependent on the input signal samples, it was possible to obtain
the robust results by choosing the input signal carefully, adding
guard bits, using adders with saturation logic, or applying several input signal files