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Credits |
Sound Quality
|
Performance Data of MPEG-1 Layer 3 |
||||
| Sound Quality | Bandwidth | Mode | Bitrate | Reduction Ration |
| Telephone sound | 2.5 kHz | Mono | 8 kbps | 96:1 |
| Better than shortwave | 4.5 kHz | Mono | 16 kbps | 48:1 |
| Better than AM radio | 7.5 kHz | Mono | 32 kbps | 24:1 |
| Better than FM radio | 11 kHz | Stereo | 56-64 kbps | 26-24:1 |
| Near-CD | 15 kHz | Stereo | 96 kbps | 16:1 |
| CD | Greater than 15 kHz | Stereo | 112-128 kbps | 14-12:1 |
From Fraunhofer:
In all international listening tests, MPEG Layer-3 impressively proved its superior performance, maintaining the original sound quality at a data reduction of 1:12 (around 64 kbit/s per audio channel). If applications may tolerate a limited bandwidth of around 10 kHz, a reasonable sound quality for stereo signals can be achieved even at a reduction of 1:24.
