Open source speech codec designed for communications quality speech between 700 and 3200 bit/s. The main application is low bandwidth HF/VHF digital radio.
Develop a subjective testing system, e.g. paired comparison tests, P808, or MUSHRA, in order to evaluate the speech quality of new Codec 2 modes.
[ ] Decide on test methodology, "P.808 : Subjective evaluation of speech quality with a crowdsourcing approach" looks promising.
[ ] Can it be run online, e.g. off a web site? It should at least be easily reproducible by groups of Ham in other countries, to perform language specific testing.
[ ] Can we develop and run such a system with modest resources available?
[ ] Develop software to run test and statistical post processing
[ ] Document how to install and run the tests (e.g. for Hams in other countries)
Develop a subjective testing system, e.g. paired comparison tests, P808, or MUSHRA, in order to evaluate the speech quality of new Codec 2 modes.