[Asterisk-Users] Speech Recognition

[Iqbal]

Hi

I dont know jack about speech recognition, however since this topic came
up anyonw know how spinvox do speech ercognition, in fact its so good it
converst the speech to text and sends the voicemail as a SMS, I think a
awesome addone to the sms module in asterisk.

Iqbal

On 2/12/2005, "Race Vanderdecken" <asteriskusers at codetyrant.com> wrote:

>Ahem,
>
>Being one who has programmed, consulted and argued to points beyond
>violence about the subjects of your first paragraph, I shall now
>expound.
>
>Expounding begins:
>
>I worked on several projects with a company named Intellivoice that did
>" so called voice dialing", voice activated dialing, VAD, as a bread and
>butter product in the PSTN/T-1 world.
>
>The product was good at about 3-5 recognitions so long as they were
>distinct enough that your well trained dog could understand them as
>different commands.
>
>I was first hand witness to many sales and customer meetings, I rode in
>the car of the "inventor" and ate lunch with the VAD developers and beat
>them often with questions about how they did it and why it did not work.
>
>Personally, I have a Mid-Western trained Mid-Atlantic accent, i.e. no
>accent to speak of, so speech and voice recognition engines like me. I
>am even tempered and have been working in telecommunications, 22 wpm
>Morse code, to Tech Plus, to before NETBIOS, SNB, and 256K twisted pair
>Ethernet on 9DB, through voice and right back into VoIP before it was an
>acronym. I have been to college to study communications. I have an ear
>for dialects and can place most people in 100 mile range within their
>State. I coded the Persona project. I have pushed Sphinx down Festivals
>throat, and I have worked with Dave. I was working to create voice
>X/HTML/XML browser before they were committees. I am pushed speech and
>voice and dictation since I got my hands on a computer. I love speech
>recognition and generation, period.
>
>So, when I say that you are out of your mind if you think you can get
>VAD or SAD to work across the wire if there is an analog device in the
>path you should take heed.
>
>VAD on cel-phones works now because the reco is in the phone, for the
>most part. VAD over the analog wires can be done but is of no use to
>anyone unless they like to scream at the phone from time to time. By the
>way screaming at voice-reco engines only makes the angry. So angry in
>fact that they will either repeatedly ask you to "please say the name
>again" until you calm down or they will deliberately misdial the number
>for you. Machines just don't like to be yelled at, ask Woody Allen about
>the time beat up his television and the elevator incident.
>
>If you are Digital from speaker to reco then you have a chance. If you
>are G.711 all the way you have a chance. And by chance I mean if you use
>grammar based recognition and have a caller with an IQ greater then the
>first two digit of their Area code.
>
>Zhong's thesis work is interesting and I will state he is on the right
>track and I enjoin him to continue his work. Neural works are the right
>path, but he needs to re-read Strousstrup on objects in Tries. But short
>utterances don't work in communication models; see "trying to
>communicate with teenage son" and HDLC.
>
>My Expounding ends.
>
>Yes, what you want can be done, and it would be easy, no, I say trivial
>to accomplish.
>
>Follow the dynamic context example. Listen for reco, then create a
>dynamic context, then forward to that dynamic context. Easy peasy.
>
>Please contact me, asterisk at codetyrant, if you would like to create a
>project to do this. I would love to see VAD on VoIP come to fruition in
>my lifetime.
>
>Race "The Tyrant" Vanderdecken
>
>-----Original Message-----
>From: asterisk-users-bounces at lists.digium.com
>[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Robert
>Rozman
>Sent: Saturday, January 29, 2005 12:16 PM
>To: Jon Radon; Asterisk Users Mailing List - Non-Commercial Discussion
>Subject: Re: [Asterisk-Users] Speech Recognition
>
>Hi,
>
>probably I won't be much of help, but I'm also looking for speech
>recognition solution. But we're actually looking at two problems:
>- one would be so called voice dialing (similar to celular phones) - one
>records its own spoken names and speaks them after to call certain
>person -
>this problem is much easier to solve. Recently I have found interesting
>project that could be easily integrated for such functionality
>(http://www.princeton.edu/~lzhong/DNN.html). I'd like to start doing
>this
>but don't know much about Asterisk and its eagi interface to get sound
>out
>of it. I guess some with more insight could easily integrate this code.
>This
>solution could be probably used for simple 1 word recognition tasks
>(like
>speak name for outgoing call, or maybe say "sales" to get sales
>department -
>but as said this is speaker dependent solution.
>
>- using speaker independent solutions for other stuff. I guess that
>Sphinx
>is at the moment most serious candidate. There is already some work on
>connecting speech recognition to MH and I'm sure that guys will help
>with
>other uses.
>
>What would be most desirable from Asterisk community is some skeleton
>code
>for eagi interface... I also have question:
>does eagi based recognition take place in parallel to other dialplan
>activities (like dtmf recognition, actions, etc...) ?
>
>Regards,
>
>Rob.
>
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