Blind test · 5–12 tracks
Audiophile test: tell lossless from AAC by ear
Audiophiles are sure they can tell an original from a compressed file by ear. Test yourself: two 30-second clips of the same track — guess which one is lossless and which is AAC. Difficulty levels: easy — 32 kbps, 5 tracks; medium — 128 kbps, 12 tracks; hard — 320 kbps, 12 tracks.
Without signing in you get the warm-up only: 5 tracks, AAC 32 kbps.
FLAC · original bit depth and sample rate
FLAC → AAC 32 / 128 / 320 kbps → FLAC
identical file size and format
How the test works
1
Listen
Two clips of the same track. Switch between them — playback continues from the same spot.
2
Choose
Lossless may be the first, the second, both — or neither. Four options, so a random guess is right 25% of the time.
3
Learn the truth
After the test — your score, a breakdown of the answers and the chance of getting such a result by luck.