[CELT-dev] 22 kHz version of CELT
Jean-Marc.Valin at USherbrooke.ca
Thu May 28 07:13:01 PDT 2009
Quoting Marc Padellini <marc.padellini at gmail.com>:
> The results I get with CELT at 42 kbit/sec are also pretty good, but the
> highest bands get some noise in the 8-11 kHz frequency range. I am going to
> see what I can do, and try to optimize the band allocation or other parts of
> the codec. For comparison, AAC-LC achieves transparent quality for speech at
> about 48 kbit/sec.
It's funny because when we compared CELT to AAC-LD on 48 kbit/s speech, CELT
actually turned out better. See http://people.xiph.org/~jm/papers/celt_tasl.pdf
Could be a difference in samples, implementations, listener, ...
More information about the celt-dev