Table 2.
Scheme | CR LF | CR HF | First round (all) | Second round (example, individual) |
---|---|---|---|---|
1 | 1:1 | 1:1 | X | |
2 | 1:1 | 1.8:1 | X | |
3 | 1:1 | 3:1 | X | X |
4 | 1.8:1 | 1:1 | ||
5 | 1.8:1 | 1.8:1 | X | |
6 | 1.8:1 | 3:1 | X | |
7 | 3:1 | 1:1 | X | |
8 | 3:1 | 1.8:1 | ||
9 | 3:1 | 3:1 | X |
Note: CR = Compression ratio; LF = low frequencies (≤ 1 kHz); HF = high frequencies (≥2 kHz).