Connected: An Internet Encyclopedia
4.4.13 VDVI

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4.4.13 VDVI

4.4.13 VDVI

VDVI is a variable-rate version of DVI4, yielding speech bit rates of between 10 and 25 kb/s. It is specified for single-channel operation only. It uses the following encoding:

                    DVI4 codeword    VDVI bit pattern
                    __________________________________
                                0    00
                                1    010
                                2    1100
                                3    11100
                                4    111100
                                5    1111100
                                6    11111100
                                7    11111110
                                8    10
                                9    011
                               10    1101
                               11    11101
                               12    111101
                               13    1111101
                               14    11111101
                               15    11111111



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Connected: An Internet Encyclopedia
4.4.13 VDVI