| Bit rate | Quality |
| 8 kbps | telephone |
| 16 kbps | shortwave radio |
| 32 kbps | AM radio |
| 64 kbps | FM radio |
| 96 kbps | near CD |
| 128 kbps | CD |
(Some encoders vary the bit rate depending upon the nature of the sound -- for example, lowering it during silent periods -- but all decoders may not be able to play those files).
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