For all the above conversions to succeed, what must be common?
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Answer / silpa
CODECs are not simply generic devices. They need to perform their conversion according to a standard so
that a complementary CODEC at the receiving end can apply the same standard when it does the reverse conversion.
The CODEC will encode the data according to a fixed set of rules - as long as the receiving CODEC applies the same set of rules in reverse, then the data can be reconstituted exactly as it was originally transmitted.
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