[music-dsp] interpollation:

Angus Hewlett angus at afhewlett.f9.co.uk
Sat Apr 29 06:34:11 EDT 2000


Hey,

This sounds good - are there any restrictions/patents/other BS on its use?

Regards,
	Angus.





At 17:55 27/04/00 +0300, you wrote:

>Cut'n'paste:
>
>double getdatawithhermiteip(double address) {
>  unsigned int pos = address;
>  double fractpos = address - pos;
>  double a = (3*((double)data[pos]-data[pos+1])
>   -(double)data[pos-1]+data[pos+2])/2;
>  double b = 2*(double)data[pos+1]+data[pos-1]
>   -(5*(double)data[pos]+data[pos+2])/2;
>  double c = ((double)data[pos+1]-data[pos-1])/2;
>  return (((a*fractpos)+b)*fractpos+c)*fractpos+data[pos];
>}
>
>-olli

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