Table 3 The log spectral distortion for various bit rates (variable rate coding scheme). For the 5 kbps case, the actual number of bits/frame used for each band can be found on Table 4.
From: Multiresolution Source/Filter Model for Low Bitrate Coding of Spot Microphone Signals
Bits/frame | kbps | LSD(dB) | 2–4 dB (%) |
|
|---|---|---|---|---|
Var | 5 | 1.2599 | 16.13 | 0.0998 |
Var | 10 | 0.6380 | 3.87 | 0.0000 |
22 | 15 | 0.7583 | 0.35 | 0.0186 |
29 | 20 | 0.4108 | 0.06 | 0.0046 |
36 | 25 | 0.2190 | 0.01 | 0.0000 |
44 | 30 | 0.1094 | 0.00 | 0.0000 |
51 | 35 | 0.0592 | 0.00 | 0.0000 |
58 | 40 | 0.0329 | 0.00 | 0.0000 |
4 dB (%)