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

Riccardo Micci riccardo.micci at cambridgeconsultants.com
Fri Sep 24 07:58:28 PDT 2010

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 Micci
Senior DSP Engineer, Wireless Group 
Cambridge Consultants
Science Park, Milton Road 
Cambridge, CB4 0DW, England
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Direct dial: +44 (0)1223 392402
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Fax: +44 (0)1223 423373
riccardo.micci at cambridgeconsultants.com

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