Comparison of Compression rates and schemes

Original Audio for these examples:

John Coltrane Quartet
Bessie's Blues
from Crescent
copyright 1987 MCA Records

Real Audio
Bessie's Blues for RealPlayerG2 optimized for 28.8 modem Click here for the pop-up player	size: 540K 11.025 kHz 16 bit stereo 20 kbps
Bessie's Blues for RealPlayerG2 optimized for 56.6 modem Click here for the pop-up player	size: 864K 44.100 kHz 16 bit mono 32 kbps
Bessie's Blues for RealPlayerG2 optimized for ISDN Line Click here for the pop-up player	size: 1.1MB 22.050 kHz 16 bit stereo 44 kbps
Bessie's Blues for RealPlayerG2 optimized for T1 connection Click here for the pop-up player	size: 2.5MB 44.100 kHz 16 bit stereo 96 kbps
Quicktime
Bessie's Blues for QuickTime optimized for 28.8 modem	size: 748K 22.050 kHz 16 bit mono 2 kbps
Bessie's Blues for QuickTime optimized for 56.6 modem	size: 1.4 MB 44.100 kHz 16 bit mono 5 kbps
Bessie's Blues for QuickTime optimized for ISDN line	size: 1.6 MB 44.100 kHz 16 bit stereo 6 kbps
MP3
Bessie's Blues as MP3 optimized for modem	size: 632K 22.050 kHz 16 bit mono 3 kbps
Bessie's Blues as MP3 optimized for high-end	size: 2.4MB 32.000 kHz 16 bit stereo 12 kbps