Subject: Re: [linux-audio-dev] 64 bit float or integer
From: Stefan Nitschke (stefan_nitschke_AT_hotmail.com)
Date: Sat May 26 2001 - 01:11:42 EEST
>There is interesting papers at
> http://www.sonic.com/sshd_otherinfo.html
>
>Including
> 48-Bit Integer Processing Beats 32-Bit Floating-Point for Professional
> Audio Applications
>
>The master brain behind the Sonic is James A. Moorer who developed
>digital audio workstations at Lucasfilm, 1980 or such.
>
Thanks for the link! Some years ago i experimented with 64bit floats on my
cyrix CPU based machine. The cyrix FPU is known to not have a good
performance so i changed back to 32bit floats which resulted into 10-20%
faster execution. I am not sure about the exact increase of performance
anymore, its to long ago. Anyway it would be interesting to know how this
looks on an up-to-date CPU. AFAIK the FPU uses internaly always 64bit...
Stefan
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