Table 14 Statistics of bit rates per second of the proposed approach and the baselines with various logF0 codebooks for the SI speech coding case
From: A parametric prosody coding approach for Mandarin speech using a hierarchical prosodic model
| Â | Bits per second | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Average | Standard deviation | Maximum/Minimum | |||||||
NC | M0 | M1 | NC | M0 | M1 | NC | M0 | M1 | |
(a) Inside | |||||||||
 SI-HPM | 103.1 | 86.4 | 69.0 | 13.3 | 11.0 | 8.6 | 137.7/52.7 | 163.6/45.4 | 108.6/37.1 |
 SI-BSL-10 | 87.9 | 70.3 | 67.2 | 11.3 | 9.0 | 8.3 | 111.5/44.9 | 139.4/35.6 | 105.5/35.0 |
 SI-BSL-16 | 87.9 | 72.4 | 69.1 | 11.3 | 9.3 | 8.5 | 114.8/44.9 | 139.4/36.7 | 108.6/36.4 |
 SI-BSL-32 | 91.7 | 75.0 | 72.5 | 11.8 | 9.6 | 8.9 | 119.1/46.8 | 145.4/37.9 | 113.7/38.0 |
 SI-BSL-64 | 95.5 | 78.6 | 75.7 | 12.3 | 10.1 | 9.4 | 124.8/48.8 | 151.5/39.9 | 118.7/39.8 |
 SI-BSL-128 | 99.3 | 82.3 | 78.7 | 12.8 | 10.6 | 9.8 | 130.6/50.8 | 157.5/41.6 | 124.3/40.9 |
 SI-BSL-256 | 103.1 | 86.0 | 80.8 | 13.3 | 11.0 | 10.2 | 136.6/52.7 | 163.6/43.7 | 127.4/41.5 |
(b) Outside | |||||||||
 SI-HPM | 103.6 | 87.7 | 72.7 | 13.3 | 11.2 | 9.4 | 121.2/77.6 | 142.6/64.6 | 102.4/52.4 |
 SI-BSL-10 | 88.3 | 71.2 | 69.5 | 11.4 | 9.0 | 8.7 | 99.2/66.1 | 121.5/53.1 | 96.5/51.2 |
 SI-BSL-16 | 88.3 | 73.3 | 71.2 | 11.4 | 9.3 | 8.9 | 102.1/66.1 | 121.5/54.7 | 98.2/52.2 |
 SI-BSL-32 | 92.1 | 76.9 | 74.9 | 11.9 | 9.7 | 9.2 | 106.8/69.0 | 126.7/57.4 | 103.8/54.6 |
 SI-BSL-64 | 95.9 | 80.2 | 79.2 | 12.4 | 10.2 | 9.4 | 111.3/71.9 | 132.0/60.0 | 109.3/56.8 |
 SI-BSL-128 | 99.8 | 84.1 | 88.8 | 12.9 | 10.7 | 9.9 | 116.5/74.8 | 137.3/62.9 | 120.0/66.7 |
 SI-BSL-256 | 103.6 | 87.5 | 136.7 | 13.3 | 11.1 | 22.2 | 121.3/77.6 | 142.6/65.4 | 204.0/93.9 |