[KozmoNau7]

24-bit for playback is a waste of space and bandwidth, 16-bit audio has plenty of dynamic range for any kind of music enjoyed by human beings.

In the old days, the recommendation for digital audio was to master for -20 dBFS average, use no compression (or very little) and let any peaks fall where they may in the 20 dB headroom. And nobody complained about the noise floor at ~76 dB below the average level.

I wish everyone would go back to mastering to that spec, instead of slamming everything to 0 dBFS with loads of compression and often clipping on top. Obviously still allowing use of compression for artistic reasons.

[magduf]

24 bits gives you more headroom to work with, making mastering easier. It also quells any concerns about 16 bits being insufficient. As for "waste of space", the simple fact is that we don't have a shortage of space when you're talking about audio files. Hard drives are routinely over 1TB now. Remember, the person you responded to proposed offering the 24-bit version as an optional "audiophile" version of a track, not the default offering. It's not like everyone will want to stream the top-quality version for listening on earbuds.

[sjwright]

You’re correct that the file size of audio stopped being relevant many years ago. In a world of Netflix 4K streaming, even the most inefficient audio formats don’t move the needle.

(If it did matter, which it doesn’t, it occurs to me that you could even create a 24 bit file that only contains 18 significant bits [dithered to 18 bits then padded to 24] in such a way that the space was reclaimed by ALAC or FLAC encoding.)

[sjwright]

I agree with all of that; I only suggest 24 bits in order to shut up the people who can’t get over the idea of using 16 bits for wide dynamic range content. I just want the better mastering. I don’t care whether it takes extra placebo to make it happen.

The bandwidth consequence would be trivial bordering on nil given that only a small number of albums would ever receive the treatment, and only a small number of end users would choose the option.