Mp3(2.65 Mb) — 128kbps

To understand why is the magic number, you have to look at the bit rate. At 128 kilobits per second , a computer processes 128,000 bits of data for every second of music.

Once you factor in silence at the start/end and the efficiency of the MP3 codec, you land right around that mark. The Sound of "Good Enough" 128kbps mp3(2.65 MB)

(128 kbps × 180 seconds) / 8 bits per byte = 2.88 MB . To understand why is the magic number, you

The music sounds underwater, with "swishing" artifacts in the cymbals. a computer processes 128