[CELT-dev] Celt 0.7.1 High complexity VS Low complexity

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Fri Sep 24 08:29:06 PDT 2010


Hi,

The pitch predictor has been removed from CELT, so version 0.9 will no 
loner have one. The complexity setting now control other aspects of the 
encoder and its default is now 5.

	Jean-Marc

On 10-09-24 10:58 AM, Riccardo Micci wrote:
>
> Hi,
> I was checking complexity modes of CELT 07.1 encoder. If i got it
> correctly everything is driven by pitch_available variable set in
> celt_encoder_create function. By default it's set to 1 hence high
> complexity mode is used all the time. I tried to disable it and although
> i couldn't hear any particular difference in the decoded audio quality,
> the cycle count of the encoder dropped of average 40%.
> Is there a reason why it has been set off by default? Are there any
> known issue involved in changing that parameter?
>
> Best Regards
> Riccardo
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> Riccardo Micci
> Senior DSP Engineer, Wireless Group
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