[speex-dev] fixed point speex on a texas dsp + real timeacquizition

Guillaume ROGET guillaume.roget at fr.thalesgroup.com
Thu Apr 1 22:35:53 PST 2004

"Do you mean doing that on a DSP, or on a PC (before you do it on DSP)?"

Yes I want do that with a PC in order to test if  I can encode in real time an external audio source and then I want to
implemente SPEEX in a dSP.


Jean-Marc Valin a écrit :

> > I want to know if it is possible to do a real time acquizition and to
> > compresse in real time the audio input signal. By example, I have on my
> > demonstration card an audio linein input. If I send an audio source (PC
> > sound card output) on this input, does speex will be able to compress
> > this signal in real time and to store it in a hard disk integrated to
> > the demonstration card?
> Well, I can't comment on the real-time acquisition and hard-drive
> access, since SPeex has nothing to do with that. For real-time encoding,
> it depends on the speed of your DSP (I don't know that model).
> > TO test that, i would want to send an audio source to my sound card
> > input and  I would want do the acquizition of  my sound card input and
> > compress with SPEEX this audio signal and play in the same time the
> > decoded file SPX in order to measuring performances with an external
> > audio analyser.
> > Is it possible?and how can I do that?
>         Jean-Marc
> --
> Jean-Marc Valin
> http://www.xiph.org/~jm/
> Université de Sherbrooke, Québec, Canada
>   ------------------------------------------------------------------------
>                        Name: signature.asc
>    signature.asc       Type: application/pgp-signature
>                 Description: Ceci est une partie de message =?ISO-8859-1?Q?num=E9riquement?= =?ISO-8859-1?Q?_sign=E9e=2E?=

--- >8 ----
List archives:  http://www.xiph.org/archives/
Ogg project homepage: http://www.xiph.org/ogg/
To unsubscribe from this list, send a message to 'speex-dev-request at xiph.org'
containing only the word 'unsubscribe' in the body.  No subject is needed.
Unsubscribe messages sent to the list will be ignored/filtered.

More information about the Speex-dev mailing list