Az B said:
That's debateable. 16 bit 44.1 kHz audio is already very high resolution. Frequency Response? What's the point of instating a new format that can reach 40kHz when very few people can hear past 18kHz?
In the current standing peer-reviwed research for audio transmission,
[1]16kHz actually was the point at where musical playback no longer benefited audibly when using trained audio professionals as test subjects. Test material used was music, impulses and harmonicly rich tones.
S/N ratio? 96db is nearly as good as the best analog amplifiers, EQs, DVD players, CD players, etc which mostly fall short of 100db. Receivers and more budget minded equipment are lucky to reach 90.
Dynamic Range? Until recording engineers and producers stop insisting on compressing the snot out of recordings, there's little point in trying to make the hardware more capable. Besides, CD audio is already quite capable in that area.
96dB is sufficient to encompass highly dynamic uncompressed classical works. For other types such as rock, pop, etc. is so far in excess of the needed range that it is usually wasteful. Besides, the demands on speakers to reproduce 96db range from the average noisefloor of a room(40-50db) is insane. Even if you have specially isolated room that is purpose built for silence or you live in a remote location away from neighbors and roads and have no noise from utilities in the house, the noisefloor is still 25-35db. 35+96=131db. Besides a few large horn speakers and line arrays, this SPL is not possible. You could consider that you can hear distinctly below the noisefloor to a certain extent, but this is not an issue considering the average power level of the music and it's relation to masking the lower level information. Additionally, consider the noisefloor of a specially built isolation studio -- 25db. The S/N is limited to the peak sound ratio of the sound source vs. the studio noise. Once you apply ANY compression, you raise the noisefloor further.
-Chris
[1] Which Bandwidth Is Necessary for Optimal Sound Transmission?
G. PLENGE, H. JAKUBOWSKI, AND P. SCHONE
JAES, Volume 28 Number 3 pp. 114-119; March 1980