4 ms·

For comparable BER. I wonder what SNR is needed for speech to be intelligible? To be fair, if someone made a voice encoding only with that had a lot of error c

For comparable BER. I wonder what SNR is needed for speech to be intelligible? To be fair, if someone made a voice encoding only with that had a lot of error correction bits, it would probably work at much longer distances. Some of the codecs are 2 kilobits per second for human voice? That's got to have a way better margin for the same channel bandwidth than analog decoded by the human brain. This way we get the digital advantage and lossy compression.

moandcompany 2y ago
You may find the MELP Vocoder and history interesting: https://melp.org/ https://melp.org/ (MIL-STD-3005) MELP targets 2.4kbps, and there are later examples for even lower bitrates (e.g. 1.2kbps, 600bps) One thing to keep in mind is that a lot of these codecs or technologies are designed to operate at very low bit rates because the signal carrier is required to be capable of operation in "contested environments" where jamming and/or other environmental effects are present (and throughput potential is the tradeoff for assurance).