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over 4 years ago - /u/RiotPraeco - Direct link

Originally posted by Theguywhodo

There's more to it than sensitivity to frequencies. It's also how easily can you pickup the difference in dynamics and I'm quite sure since other factors as well. A big part of mp3 compression mechanism is 'frequency masking'. I'm not aware of any studies on this, but I wouldn't be surprised if some people were more easily able to pick up artifacts after this, than others. I'm not the one to say whether some kind of talent is needed or if some form of training is sufficient. Some people can just sit down and tell the difference instantly. Others struggle, but I wouldn't worry about it. The most important bit is if you actually enjoy the music.

We’ve done a ton of null tests and comparisons on all sorts of professional studio and cheap setups. Focals, genelecs, ATCs, Dynaudio, sennheiser headphones, Beyer Dynamic headphones, you name it.

Difference between properly encoded 320kbps mp3 and the master wav is so marginal and light, only at the veeery top of what’s audible for the human ear, that I really can’t say that it makes a noticeable difference when all you’re doing is listen.

YouTube audio compression certainly is slightly lower quality, but also just in the upper frequency range. There is no Changes in dynamics, or the mix. It’s the same song, with slightly more compressed super high frequencies, played at a lower volume due to the platforms’ different target loudness.

over 4 years ago - /u/RiotPraeco - Direct link

Originally posted by Theguywhodo

It's almost impossible to tell between a FLAC and 320 kbps mp3. I know these debates often go sideways with "get better headphones", but to consistently tell the difference, you need exceptional ears and potentially years of experience.

I'm not disagreeing with you, I just want to point out, that while the difference in bitrate is huge, the perceivable difference in sound quality is usually negligible.

EDIT: Since I'm being disputed about this, I will post some papers that back up my claim.
paper 1
paper 2

These two articles actually demonstrate that even trained proffesionals go 50/50 in listening tests when comparing even 256 kbps MP3s to lossless formats.

You are correct.

over 4 years ago - /u/RiotPraeco - Direct link

Originally posted by narrill

YouTube isn't performing dynamic range compression, they're performing lossy data compression. Dynamic range compression doesn't give you smaller file sizes.

Correct. Spotify doesn’t touch dynamics, just overall Volume. Same goes for YouTube.