Re: Mix audio at different frequencies

[Lee Revell <rlrevell@joe-job.com>]

On Mon, 2006-05-15 at 09:06 +0200, Juan Zapatero wrote:
> What do you mean? Here is my .asoundrc, what has to be changed?
> 

That ALSA already defaults to using dmix with the rate plugin since
version 1.0.9.  It should work without an .asoundrc.

Lee

> # this makes native ALSA apps default to using dmix
> pcm.!default {
>   type plug
>   slave.pcm "duplex"
> }
> 
> ctl.!default {
>   type hw
>   card 0
> }
> 
> pcm.duplex{
>    type asym
>    playback.pcm "dmix0"
>    capture.pcm "plughw:0,0"
> }
> 
> pcm.dmix0 {
>     type dmix
>     ipc_key 219345           # any unique number here
>     slave {
>             pcm "hw:0,0"
>             period_time 0
>             #buffer_time 0
>             period_size 2048    # jm: much smoother than 1024/8192!
>             buffer_size 32768
>             rate 44100
>     }    
>     bindings {
>         0 0   # from 0 => to 0
>         1 1   # from 1 => to 1
>     }
> }
> 
> 
> 
> 
> 
> El vie, 12-05-2006 a las 14:10 +0200, Takashi Iwai escribió:
> > At Fri, 12 May 2006 12:25:41 +0200,
> > Juan Zapatero wrote:
> > > 
> > > Hello,
> > > I need to mix in playback two different audio streams, one coming from
> > > an ogg player, which is at 44100Hz, and the other one, coming out of a
> > > VoIP application, in this case, at 8000Hz. As I am using the dmix plugin
> > > for mixing, I can't find out how to implement the resampling operations
> > > needed.
> > 
> > Use plug or rate plugin.  The default setting does it automatically,
> > too.
> > 
> > Note that the rate plugin in 1.0.11 release has some bugs that was
> > already fixed on HG repo.
> > 
> > 
> > Takashi
> 
> 
> ______________________
> Este mensaje, y en su caso, cualquier fichero anexo al mismo,
>  puede contener informacion clasificada por su emisor como confidencial
>  en el marco de su Sistema de Gestion de Seguridad de la 
> Informacion siendo para uso exclusivo del destinatario, quedando 
> prohibida su divulgacion copia o distribucion a terceros sin la 
> autorizacion expresa del remitente. Si Vd. ha recibido este mensaje 
>  erroneamente, se ruega lo notifique al remitente y proceda a su borrado. 
> Gracias por su colaboracion.
> ______________________
> This message including any attachments may contain confidential 
> information, according to our Information Security Management System,
>  and intended solely for a specific individual to whom they are addressed.
>  Any unauthorised copy, disclosure or distribution of this message
>  is strictly forbidden. If you have received this transmission in error,
>  please notify the sender immediately and delete it.
> ______________________
> 
> 
> -------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
> http://sel.as-us.falkag.net/sel?cmd=lnk&kid\x120709&bid&3057&dat\x121642
> _______________________________________________
> Alsa-devel mailing list
> Alsa-devel@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/alsa-devel
> 



-------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642