[Speex-dev] A technical question about the speex preprocessor.

Jean-Marc Valin jean-marc.valin at usherbrooke.ca
Tue Jul 21 16:44:40 PDT 2009

Hi John,

M(;;) is the confluent hypergeometric function.


John Ridges a écrit :
> Hi,
> I've been trying to re-create the table in the function "hypergeom_gain" 
> in preprocess.c, and I just simply can't get the same values. I get the 
> same value for the first element, so I know I'm computing gamma(1.25)^2 
> correctly, but I can't get the same numbers for M(-.25;1;-x), which I 
> assume is Kummer's function. Is it possible that the comment is out of 
> date and the values of Kummer's function used to make the table were 
> different? Any help would be greatly appreciated.
> John Ridges
> _______________________________________________
> Speex-dev mailing list
> Speex-dev at xiph.org
> http://lists.xiph.org/mailman/listinfo/speex-dev

More information about the Speex-dev mailing list