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Table 2 The bit allocation used for embedded quantization at different rates. UV and VUV correspond to unvoiced and mixed voicing codebooks, respectively.

From: Very Low Rate Scalable Speech Coding through Classified Embedded Matrix Quantization

Average bits per segment No. of bits for No. of bits for No. of bits for No. of bits for No. of bits for
  representing representing representing representing representing
  LSF1 & LSF2 LSF3 & LSF4 LSF5 & LSF6 LSF7 & LSF8 LSF9 & LSF10
  VUV UV VUV UV VUV UV VUV UV VUV UV
43 10 8 10 8 10 8 9 7 8 6
42 10 8 10 8 10 8 9 7 7 5
41 10 8 10 8 10 8 8 6 7 5
40 10 8 10 8 9 7 8 6 7 5
39 10 8 9 7 9 7 8 6 7 5
38 9 7 9 7 9 7 8 6 7 5
37 9 7 9 7 9 7 8 6 6 4
36 9 7 9 7 9 7 7 5 6 4
35 9 7 9 7 8 6 7 5 6 4
34 9 7 8 6 8 6 7 5 6 4
33 8 6 8 6 8 6 7 5 6 4
32 8 6 8 6 8 6 7 5 5 3
31 8 6 8 6 8 6 6 4 5 3
30 8 6 8 6 7 5 6 4 5 3
29 8 6 7 5 7 5 6 4 5 3
28 7 5 7 5 7 5 6 4 5 3
27 7 5 7 5 7 5 6 4 4 2