[Asterisk-Users] G729 codec

[Max W Blackmer Jr]

> -------- Original Message --------
> Subject: Re: [Asterisk-Users] G729 codec
> From: "todd" <tkgunfedora at comcast.net>
> Date: Wed, May 25, 2005 11:59 am
> To: "Asterisk Users Mailing List - Non-Commercial Discussion"
> <asterisk-users at lists.digium.com>
>
> Steve
> Trying to understand the floating point vs fixed, forgive my ignorance.
> By floating you mean it can very depending on usage from 6.4kbps to
> 11.8kbps; were as the fixed will be constant 8kbps?
> Thanks
> Todd
>

No Fixed point calculation and floating point executions are diffrent
only in the way calculations are preformed. Floating point executions
use to take more time than useing fixed point calculations. With todays
math coprocessors especially with SSE floating point calculations
actually preform well on Intel x86 platform. Fixed point calculations
use a fixed decimal place to perform calculations with some performance
increases with less precision and accuracy.

Cheers,

Max