Hi All, I have been playing around with the Codec2 vocoder block. I have a working flowgraph where I put a C2 encoder and a C2 decoder back to back.
I'm puzzled with the expected stream format. In the coder, the intent seems to create a vector of 50 bits (or bytes where the LSB contains the bit value) as output. If we look closer, the output is packed, so the 7 first bytes contain actual data and the 43 others are 0. Is there a rationale about the codec stream format (shall it be packed or unpacked) ? Is is supposed to be uniform among all codecs ? I've seen that the GSM coder uses a single byte output for the stream. What is the advantage of using a single byte output compared to outputting an array ? Cheers, Sébastien
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