You also lose some of the fullness on the extreme low end, it's noticeable even with a fairly low end subwoofer.
Something also ends up missing in the midranges. I was working on a track once where all I had was 320 mp3 version of the vocals. At some point I replaced it with a flac copy of the same vocal recording, from the same original wav source and the difference was noticeable right away without changing any of my equalizer settings or anything. It just punched through more and the clarity improved.
The low end thing just isn't true at all, and I don't know where that myth comes from.
I have a room-corrected setup with two properly adjusted subs, and MP3 does just fine on deep bass content.
Regarding solo vocals, the history of the MP3 format says: "The song "Tom's Diner" by Suzanne Vega was the first song used by Karlheinz Brandenburg to develop the MP3. Brandenburg adopted the song for testing purposes, listening to it again and again each time refining the scheme, making sure it did not adversely affect the subtlety of Vega's voice".
That's not to say that they did a perfect job, but human voice was a very high priority.
And the encoders have continued to improve. So an earlier encoders may have messed with the voices, but a reasonably recent version of LAME would do so much better.
MP3's real weakness is fast sharp transients, such as castanets and harpsichord in sparse recordings, where no other sounds can mask them. It's a fundamental weakness in the format, and cannot be completely solved.
Newer formats such as Ogg Vorbis, Opus and AAC do not suffer from this weakness.
>The low end thing just isn't true at all, and I don't know where that myth comes from.
Well for me it came from running multiple copies of the same bass heavy tracks encoded in different formats through spectrum analysers. But I guess those lie?
>Regarding solo vocals, the history of the MP3 format says: "The song "Tom's Diner" by Suzanne Vega was the first song used by Karlheinz Brandenburg to develop the MP3. Brandenburg adopted the song for testing purposes, listening to it again and again each time refining the scheme, making sure it did not adversely affect the subtlety of Vega's voice".
Human voices come in a wide range of tones and frequencies. Optimizing something for one voice doesn't mean all voices will benefit from the same optimizations. The specific track I was referring to had a lot of variation in high and low notes. You can tell me all you want what I did and didn't hear.
>"Well for me it came from running multiple copies of the same bass heavy tracks encoded in different formats through spectrum analysers. But I guess those lie?"
Of course it's going to look different in a spectrum analyzer, the whole point of lossy compression is to discard parts of the audio to save space.
You can't evaluate the quality of a lossy codec by looking at spectrograms. They're designed to fool human ears, not measurement software.
Something also ends up missing in the midranges. I was working on a track once where all I had was 320 mp3 version of the vocals. At some point I replaced it with a flac copy of the same vocal recording, from the same original wav source and the difference was noticeable right away without changing any of my equalizer settings or anything. It just punched through more and the clarity improved.