search for: fast_rsqrt_est

...is approach. I don't know whether this patch will produce acceptable results -- everything sounds fine to me, but I haven't done exhaustive testing (and I'm not the world's most critical listener). Here is the blow by blow description of the patch: - Add fast_math.[ch] - fast_rsqrt_est -- fast reciprocal square root estimate (i.e., 1.0/sqrt(x)) - fast_sqrt_est -- fast square root estimate - fast_log_est -- fast natural log estimate - Adds a IEEE structure for floats - Adds VORBIS_EXACT_FLOAT_RESULTS. If this is defined, the estimations are turned off. - M...