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AMR decoder

Started by biswasbiswajit May 13, 2002
Hi,
When implementing AMR decoder from scratch as explained in 3GPP
standard, I am facing lot of doubts. Decoding fucntions are not
explained properly in the standard. For example, DTX handling in
decoder side is understandble in reference source code , but nothing
is explained in the standard (TS 26.093 V3.3.0).

Am I missing something? Can anybody tell where explanations about the
decoding functions are given in greater detail?

Also, if I use some functions from the reference code, is there any
copyright issue?

Regards
biswajit