Michael Welter wrote:
Michael Stearne wrote:
Hi,
What would you say that the best compression format is for voice recordings on Asterisk? The tradeoff being the file's size. I like GSM because of the small files size but the quality isn't great. What are people finding as a good setting for GSM?
Thanks, Michael
And since g.729 is "predictive", does that mean it is for English speakers? Or will it work equally well for, say, Chinese?
Almost all low bit rate codecs are predictive. That doesn't mean they favour any one language, though some favour men over women (they do a better job with a low pitched voice). Tonal languages, like Cantonese, do tend to suffer more with low bit rate codecs than most western languages. This is because the pitch of the voice is less accurately preserved. In that sense, Chinese may suffer more than English using almost any low bit rate codec.
Regards, Steve
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