Changing CVSD Encoder/Decoder Values
Original Post: CVSD (SIG Forum) Date:
2000-05-24
The CVSD values given in the Spec (also see Variable/Fixed
CVSD Encoder/Decoder Values? ) , are designed for a 16-bit
encoder/decoder. However will they change for a 13-bit design?
Although the exact answer is unsure ,the parameters may have to be
changed for 13-bit design, since the optimal audio values for 13-bit &
16-bit are different. Anyway, as the parameters are multiples of 16 for
16-bit, I think this algorithm can also be applied in 13-bit design by
changing to multiple of 13.The values of J & K are slightly more
difficult to interpret ,and perhaps the 16-bit values supplied should be
kept .
On the other hand,it may be possible to change the 13-bit data
into16bit data by adding 3 zero's in MSB firstly, and then feed it as
usual.
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