tained for a given output bitrate therefore changes with sample rate.
In the Antex software the bitrate is specified on a
Layer I
32 KHz |
|
| 44.1 KHz |
|
| 48 KHz |
|
Bitrate | Compression |
| Bitrate | Compression |
| Bitrate | Compression |
(kbits/s) | ratio |
| (kbits/s) | ratio |
| (kbits/s) | ratio |
32 | 16 |
| 32 | 22.1 |
| 32 | 24.0 |
64 | 8.0 |
| 64 | 11.0 |
| 64 | 12.0 |
96 | 5.3 |
| 96 | 7.4 |
| 96 | 8.0 |
|
|
| 128 | 5.5 |
| 128 | 6.0 |
|
|
|
|
|
| 160 | 4.8 |
Layer II
32 KHz |
|
| 44.1 KHz |
|
| 48 KHz |
|
Bitrate | Compression |
| Bitrate | Compression |
| Bitrate | Compression |
(kbits/s) | ratio |
| (kbits/s) | ratio |
| (kbits/s) | ratio |
32 | 16 |
| 32 | 22.1 |
| 32 | 24 |
48 | 10.7 |
| 48 | 14.7 |
| 48 | 16 |
56 | 9.1 |
| 56 | 12.6 |
| 56 | 13.7 |
64 | 8.0 |
| 64 | 11.0 |
| 64 | 12.0 |
80 | 6.4 |
| 80 | 8.8 |
| 80 | 9.6 |
96 | 5.3 |
| 96 | 7.4 |
| 96 | 8.0 |
112 | 4.6 |
| 112 | 6.3 |
| 112 | 6.9 |
128 | 4.0 |
| 128 | 5.5 |
| 128 | 6.0 |
160 | 3.2 |
| 160 | 4.4 |
| 160 | 4.8 |
192 | 2.7 |
| 192 | 3.7 |
| 192 | 4.0 |
224* | 2.3 |
| 224* | 3.2 |
| 224* | 3.4 |
256* | 2 |
| 256* | 2.8 |
| 256* | 3.0 |
320* | 1.6 |
| 320* | 2.2 |
| 320* | 2.4 |
384* | 1.3 |
| 384* | 1.8 |
| 384* | 2.0 |
* These bitrates are available for mono files only.
Layer II uses a more sophisticated compression algorithm than Layer I, so it is recommended that Layer II be used wherever pos- sible.
18