[asterisk-speech-rec] SpeechBackround: accepting DTMF and speechat the same time? Why? CRM:00170282

[Stephen Keller]

Have you tried setting the vad_burst_threshold higher? I assume the
tones are fairly short, and this parameter should adjust the length of
time the Engine has to detect audio before it triggers speech
recognition.

--
Stephen Keller
LumenVox Technical Support
P: 877-977-0707, just say "Stephen Keller" or "Support"
F: 858-707-7072
support at LumenVox.com
www.LumenVox.com

LumenVox

Tell us what is important to you! Take our product development survey:
http://www.LumenVox.com/survey/srDevelopment/index.asp


-----Original Message-----
From: asterisk-speech-rec-bounces at lists.digium.com
[mailto:asterisk-speech-rec-bounces at lists.digium.com] On Behalf Of Tom
[toms400]
Sent: Monday, December 04, 2006 4:15 PM
To: Use of speech recognition in Asterisk
Subject: Re: [asterisk-speech-rec] SpeechBackround: accepting DTMF and
speechat the same time? Why?

The phone isn't purposely sending the tone down the line, it's just loud
enough that it's picked up by the engine as some sort of speech and
short enough that the speech engine stops listening and sends its
result.  I've set the vad_noise_filter as high as I can to a point where
it can still hear real speech (12000) but this feedback beep still gets
through.

I've been testing with a Uniden 900 MHz cordless.
http://www.uniden.com/products/productdetail.cfm?product=DXI986-2

Its the same behavior as using a softphone w/headset (and w/o headset)
and the speaker turned up.

On 12/4/06, Kevin P. Fleming <kpfleming at digium.com> wrote:
> Tom [toms400] wrote:
> > The problem is that some of them have phones that produce beeps 
> > intended for them as audible feedback, not the person they're
calling.
> > That beep is basically just background noise.  So, even though 
> > SpeechBackground picks up the out-of-band DTMF correctly, the speech

> > engine appears to be detecting that beep as speech, timesout and 
> > returns an incomplete result.  Does this sound plausible?
>
> The phone is sending this beep down the line, not just playing it out 
> the speaker (or some other method) for the person sitting at the
phone?
> That seems very odd... I've never heard of a phone that does that. 
> When the keys are pressed, the only that should be sent down the line 
> is the DTMF itself, not some random other noise that will be useless 
> for the other party.
>
> Is the server hearing this noise because the user is using the phone 
> in speakerphone mode, or with a headset with the speaker set to a high
volume?
> _______________________________________________
> --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
>
_______________________________________________
--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