I don't know if it will help you guys but I updated the picture.

I added the dB Scale on the side of both the 16bit and 24bit word.

Note how they line up from the top down. NOT from the bottom up.

Anything below -108dB (Around there) gets extremely difficult to hear. You would never want to "stretch" the top 16bits down into the abyss (low 8 bits).

I also added a Noise Floor line (this is approximate and will vary with room, DACs, Preamps and Amps). You need something above noise floor to hear it.

[Linked Image from meridianunplugged.com]

- Fiddler (IMHO)

If you think listening to music is fun, try learning an instrument.
HT: G61RSL, 4x5K, 5.5KHC, 2xSC6000, Transporter, HD621, Philips BDP7501 4K, Tivo, 65" LG OLED 4K C6
Computer: Foobar2000, 5K, Mojo, HiFiMan HE1000 V2