[asterisk-speech-rec] When is a License used, why is SpeechDestroy() slow

[Randal Rand]

-----Original Message-----
From: asterisk-speech-rec-bounces at lists.digium.com
[mailto:asterisk-speech-rec-bounces at lists.digium.com] On Behalf Of
Joshua Colp
Sent: Tuesday, November 21, 2006 11:36 AM
To: Use of speech recognition in Asterisk
Subject: Re: [asterisk-speech-rec] When is a License used,why is
SpeechDestroy() slow

rristroph at airlink.net wrote:
> Hi Folks,
> 
>     I have a couple of questions:
> 
>     1) When does the LumenVox check the license server to make sure
there is a license available ?  Is it at SpeechCreate() or
SpeechBackground() or the SpeechActivateGrammar() step ?  The reason why
I ask, is that I have a system for which only a portion of each call
will use Lumenvox, and I would like to figure out when the license has
to be available, in order to estimate how many channel licenses I need
for a certain call load.

SpeechCreate requests a port from the Lumenvox server. It then checks to
see whether a port is available, and if so life continues. If not it
errors out.


>     2) I started to solve the above problem by simply doing
SpeechDestroy() in my dial plan when the speech recoginition part was
done, in order to make sure it wasn't using the Lumenvox resouces
thereafter -- but the SpeechDestroy() step seems to take a while to run,
introducing a pause of a few seconds into the flow of the call -- why
does it take so long ?  If I could fix this, I might not need the answer
to the first question.

SpeechDestroy gives up the audio port, and thus returns the license. To
why it would be taking so long you would have to ask Lumenvox. Hopefully
someone from there will chime in.

The time it takes to free the port is nothing.  How is this delay
detected?

>     Also, if I knew that the Lumenvox license was only used when you
were actually recognizing things, then the answer to the second question
might not matter.

You only need a license when you are recognizing things as you
mentioned, that's why SpeechDestroy exists so you can get rid of the
audio port early and use it for another call.

>    Any help that can be offered is appreciated !
> 
> --Rob
> 

--
Joshua Colp
Software Developer
Digium, Inc.
_______________________________________________
--Bandwidth and Colocation provided by Easynews.com --

asterisk-speech-rec mailing list
To UNSUBSCRIBE or update options visit:
   http://lists.digium.com/mailman/listinfo/asterisk-speech-rec