OK, the easy test is over. Time for the difficult one. This one is just about bit-depth, not lossy compression.
These files are longer, I wanted a full reference of dynamic ranges, since that's supposed to be what 24-bit gains over 16.http://www.scuzzyeye.com/tests/track-b1.wavhttp://www.scuzzyeye.com/tests/track-b2.wavhttp://www.scuzzyeye.com/tests/track-b3.wavhttp://www.scuzzyeye.com/tests/track-b4.wavhttp://www.scuzzyeye.com/tests/track-b5.wav
Two of the files above are full 24-bit. The other three are dithered down to 16-bit with noise shaping. The 8 least significant bits are 0-filled so the files are all the same size. You challenge is to tell me which two files are 24-bit.
Before you had a 25% chance of guessing right, now it's only 10%. But if 24-bit really is that large of an improvement it shouldn't be difficult.
Pioneer VSX-1018AH-K, PDP-5020FD, DV-79AVi
Axiom M22s, VP150, QS8s
Sony PS3, surround backs