Can a MP3 sound better than a high-resolution FLAC or Apple Lossless file?

(Credit: Steve Guttenberg/CNET)

A great-sounding recording will sound its best only when it's properly mastered to LP, SACD, DVD-Audio, or a high-resolution file. Those formats will reveal the full glory of the music in ways that lower-resolution formats like MP3 or analog cassette always miss. But if you didn't have access to the high-resolution file to compare it with, a great recording will still sound pretty terrific as an AAC, M4A, or 320kbps MP3 file, because the recording's innate quality would shine through. On the other hand, a heavily compressed, processed and crude recording will always sound heavily compressed, processed and crude, regardless of whether it's an MP3, FLAC file, or LP.

Personal preferences are personal -- we like what we like; but there are objective standards for sound quality: low distortion, wide frequency response and stereo separation, and uninhibited dynamic range. If you applied those standards to most contemporary recordings, few would do well. Let's first look at dynamic range compression; once the mix or mastering engineer compresses a singer's whisper-to-a-scream vocal, the whisper will be just as loud as the scream. I love Arcade Fire's music, but their last record, "The Suburbs," sounds like crap. That's too bad; the music is strong, but the sound is not fun to listen to, and an LP or a FLAC can't fix the proble... [Read more]