New Media Metrics
Looked at from one viewpoint, DVD-Audio and SACD appear to be exercises in sheer profligacy. In the case of DVD-A, why provide a <A HREF="http://www.stereophile.com/features/282">maximum bandwidth</A> almost five times what is conventionally taken to be the audible frequency range, and couple it to a dynamic-range capability far in excess of that achievable by the microphones used to record the sound? In the case of SACD, why provide a potential bandwidth in excess of 1.4MHz, only to fill more than 95% of it with <A HREF="http://www.stereophile.com/features/374">quantization noise</A>?