1. From the forum of Diamond Cut Audio (A forensic program)
Sample rate is more important than bit depth. The software takes advantage of ultrasonic signals that are digitized when using a higher sample rate when discriminating impulse noise from music. But, bit depth beyond 16 bits is simply not of any value audibly. It's easy enough for you to try it for yourself. Record both ways (16 bits vs 24 bits). We will give you a free copy of the 1500 dollar forensics audio if you can prove that you hear a difference (use double blind techniques).

2. I see the AES is having a conference on High Resolution Audio. I wonder what they will talk about.

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