Re: Speaker verification in gdm

[Bastien Nocera <hadess hadess net>]

On 21 May 2001 01:20:23 -0400, Jean-Marc Valin wrote:
> 
> Malcolm Tredinnick a écrit :
> > 
> > On Sun, May 20, 2001 at 11:55:30PM -0400, Jean-Marc Valin wrote:
> > > I don't know PAM, but I suppose I'll need a couple non-standard things, like
> > > prompting (sending a wav?) the user and/or waiting for a certain key to be
> > > pressed before recording. I don't know PAM at all, so I don't know whether it
> > > would do the job.
> > 
> > This is exactly why you do want PAM. :-)
> > 
> > The whole idea (warning: broad brush strokes, read the documentation and
> > the web for details) is that your Pluggable Authentication Module is
> > called for certain types of access (in this case gdm login). You do
> > whatever magic you need to work out whether the user is authorised or
> > not. That is really all the calling process cares about -- yes or no. So
> > all the stuff that is "special" to your sound authentication method
> > (which sounds pretty cool, btw) is encapsulated in the PAM.
> 
> Would it be possible to do speaker _identification_? By that I mean that you say
> something and the system recognizes _who_ you are and logs you in (or say that
> you're no in the list of users).

Read the doc for PAM, yes, it can do that. PAM modules can use
login/password, voice, fingerprints, or eye scan to log you in. The only
problem is having the software/hardware for such use.

I would be delighted to try out your software when it's ready, sound
really cool.

Cheers

-- 
/Bastien Nocera
http://hadess.net