[speex-dev] Fixed-point in CVS

Jean-Marc Valin Jean-Marc.Valin at USherbrooke.ca
Wed Oct 8 07:12:25 PDT 2003

> Is there any speed advantage to using the fixed point version on a PC with
> an Intel or AMD processor?
> An advantage would be that you don't have to convert the audio input from
> short to float but what about
> encoding/decoding itself?

With the speed of x86 FPU's, I don't see how the fixed-point would be
faster. Also, speaking of the short vs. float input, these changes (that
will eventually go in 1.2) intruduce a small change in the API in that
signals are how sent to functions (encode, decode, ...) as short instead
of float.


Jean-Marc Valin, M.Sc.A., ing. jr.
LABORIUS (http://www.gel.usherb.ca/laborius)
Université de Sherbrooke, Québec, Canada

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 190 bytes
Desc: Ceci est une partie de message numériquement signée
Url : http://lists.xiph.org/pipermail/speex-dev/attachments/20031008/d897873c/signature-0001.pgp

More information about the Speex-dev mailing list