Subject: Re: [linux-audio-dev] XAP: a polemic
From: Mike Rawes (mike_rawes_AT_yahoo.co.uk)
Date: Fri Dec 20 2002 - 11:20:26 EET
On Thu, 19 Dec 2002 20:17:04 +0000
Steve Harris <S.W.Harris_AT_ecs.soton.ac.uk> wrote:
> On Thu, Dec 19, 2002 at 04:15:26 +0100, David Olofson wrote:
> > They actually make *more* sence as an audio format, since there, it
> > can have a real effect on performance. That's only really relevant
> > for old or low end hardware, though. (That's why Audiality does it -
> >
> > but only in the real time synth. I'm simply not motivated enough to
> > implement the off-line oscillators in fixed point... *heh*)
>
> Right, but on current (PIV and AthlonXP) float is slightly faster, and
> significantly so on the next generation Intel chips.
>
The only sound argument I have found for using integer fixed point over
float can be summed up in two words:
Denormal Number
Although deft coding can alleviate it somewhat, I can only hope that
with the Itanium, Opteron or whatever, this is no longer a problem!
-
Mike
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