Re: filter_mem16 implementation

Jean-Marc Valin <[email protected]> Sun, 25 Dec 2011 10:46:32 -0500

Newsgroups	gmane.comp.audio.compression.speex.devel
Message-ID	<[email protected]>

There's an implicit b0 = 1.

	Jean-Marc

On 25/12/11 05:35 AM, P GOUV wrote:
> Why filters although they are Direct Form 2 Transposed when setting yι
> 
>  yi =
> EXTRACT16(SATURATE(ADD32(EXTEND32(x[i]),PSHR32(mem[0],LPC_SHIFT)),32767));
> 
> x[i] isnt multiplied by num[0];
> Like type here 
> http://www.mathworks.com/help/techdoc/ref/filter.html#f83-1015962
> 
> 
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