Audio formats

Want to hear what different audio encodings sound like? Try out these. I recorded the first one as 44.1 kHz, 16 bit, mono PCM (that is, no encoding). Then I used that recording to create the other files. The Bps numbers are taken from the codec listings in sound recorder.

CODEC

Bitrate
KBps

File size
KB

PCM 44.1 kHz 16 bit mono

86

362

PCM 44.1 kHz 8 bit mono

43

181

PCM 22.050 kHz 8 bit mono

21

91

PCM 11.025 kHz 8 bit mono

10

46

Microsoft ADPCM 22.05 kHz, 4 bit mono

10

46

MSN audio, 44 kHz, 71663 baud mono

8

37

GSM 6.10 44.1 kHz mono

8

37

PCM 8 kHz 8 bit mono

7

33

MSN audio, 44 kHz, 65048 baud mono

7

34

MSN audio, 22 kHz, 35832 baud mono

4

19

GSM 6.10 22 kHz mono

4

19

Microsoft ADPCM 8 kHz, 4 bit mono

4

17

GSM 6.10 8 kHz mono

1

7

Real Audio 1.0 encoder

1

5


This page was created by Jim Gemmell

© 1996 Microsoft Corporation