VoIP Mailing List Archives

[dave at 3c.co.uk]

Hi all -

In case anyone's interested, I've documented how we interfaced FS with
Lumenvox via MRCP using FS' event socket and unicast interfaces and a
bit of Perl here:
http://www.softivr.com/wiki/index.php/FreeSWITCH_MRCP_in_Perl

Three surprises: that it worked at all, that it works quite well and
that it was really quite easy to do.

One thing I'm looking for: has anyone written a module which attaches a
bug to an audio stream and forwards the audio as RTP to a specified
IP/port to just allow audio to be tapped off a call and sent somewhere
else to be listened to?

Cheers --

Dave

--
David Knell, Director, 3C Limited
T: 020 8114 8901 F: 020 3002 7257 M: 001 415 630 3031
http://www.3c.co.uk


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[wasim at convergence.pk]

On Mon, Jan 12, 2009 at 4:49 PM, David Knell <dave@3c.co.uk (dave@3c.co.uk)> wrote:

[mszlazak at aol.com]

Great!

I hope you will try doing Voxeo's Prophecy next as well

Thanks Dave.

Mark.





-----Original Message-----
From: David Knell <dave@3c.co.uk>
To: freeswitch-users@lists.freeswitch.org
Sent: Mon, 12 Jan 2009 3:49 am
Subject: [Freeswitch-users] FreeSWITCH, MRCP and Perl

[brian at freeswitch.org]

"With FreeSWITCH not having any supported ASR at the time of writing (with the exception of PocketSphinx), we needed something to allow us to connect it to an MRCP server to test SoftIVR's ASR functionality. After a few false starts, we implemented a simple MRCP connector using the outbound socket interface, unicast and a bit of Perl."

Was mod_openmrcp not enough We really need someone to fund the writing of mod_unimrcp.


/b

On Jan 12, 2009, at 5:49 AM, David Knell wrote:

[mszlazak at aol.com]

Yup, or just get pocketsphinx "tuned" up for telephony and then no one will have to bother with ASR vendors.

I believe that some speech data from a good size sample for training is needed to make it more "speaker independent" and better suited for use with phone calls. I have a list of things from the Sphinx forums that would be good to have for a telephony ready PocketSphinx. There is a "wsj" database but I don't know if that's would help??

Best. Mark.





-----Original Message-----
From: Brian West <brian@freeswitch.org>
To: freeswitch-users@lists.freeswitch.org
Sent: Mon, 12 Jan 2009 9:29 am
Subject: Re: [Freeswitch-users] FreeSWITCH, MRCP and Perl

"With FreeSWITCH not having any supported ASR at the time of writing (with the exception of PocketSphinx), we needed something to allow us to connect it to an MRCP server to test SoftIVR's ASR functionality. After a few false starts, we implemented a simple MRCP connector using the outbound socket interface, unicast and a bit of Perl."

Was mod_openmrcp not enough We really need someone to fund the writing of mod_unimrcp.


/b

On Jan 12, 2009, at 5:49 AM, David Knell wrote:

[brian at freeswitch.org]

Pocketsphinx works great for telephony.. just don't load 10000 word dictionary or grammar the pizza demo uses it.. and it works great from every phone I have tested it with... Rome wasn't built in a day and we need more people that have the skills to really build a general purpose acoustical model that works in more situations.

/b
On Jan 12, 2009, at 11:46 AM, mszlazak@aol.com (mszlazak@aol.com) wrote:

[dave at 3c.co.uk]

Hi Brian,

[brian at freeswitch.org]

Putting some effort behind unimrcp would be the best case at this
point right?

/b

On Jan 12, 2009, at 12:20 PM, David Knell wrote:

[gilbertandrew at me.com]

This is great.

On Jan 12, 2009, at 6:49 AM, David Knell wrote:

[mszlazak at aol.com]

That's not the opinion of Nickolay S. from the Sphinx forums. He didn't think it was telephony ready but you implied something similar in a past email. Also, I got a similar impression with the pizza demo as it came with FS. Instead I tried Voxeo's Prophecy as per your recommendation and found it worked better. As I understand it, pocketsphinx and sphinx (3 & 4) are very good but need adapting and training for there various uses. 

So, why bother with LumenVox, Voxeo, Nuance, etc if one could get pocketsphinx working better since it's already integrated with FS?




-----Original Message-----
From: Brian West <brian@freeswitch.org>
To: freeswitch-users@lists.freeswitch.org
Sent: Mon, 12 Jan 2009 9:55 am
Subject: Re: [Freeswitch-users] FreeSWITCH, MRCP and Perl

Pocketsphinx works great for telephony.. just don't load 10000 word dictionary or grammar  the pizza demo uses it.. and it works great from every phone I have tested it with... Rome wasn't built in a day and we need more people that have the skills to really build a general purpose acoustical model that works in more situations. 

/b
On Jan 12, 2009, at 11:46 AM, mszlazak@aol.com (mszlazak@aol.com) wrote:

[brian at freeswitch.org]

Maybe for NON english speakers it doesn't do well but for my tests and
needs it does excellent. Sphinx isn't ready thats for sure.. but
PocketSphinx does great.

I have PocketSphinx doing voice dial by name directory on very common
and simple names. If you adapt it it can get much better. But have
you called AT&T lately? I have no idea what they use but OMG it
sucks... you say "NO" it doesn't understand you.. you say your account
number .. it doesn't understand you... you scream curse words at it
and it will take you to an agent so they can get you to the right
place. Its aweful. Pocketsphinx has performed better than that on my
testing.

/b


On Jan 12, 2009, at 5:09 PM, mszlazak@aol.com wrote:

[anthony.minessale at g...]

You should be careful who you ask and who's opinion you weigh against.
Just because you go ask some other guy something does not make it gospel.

These are the basic facts:

ASR/TTS is one of the many areas where we have done a huge amount of pro bono work to get people interested but there is only so much we can do as demo's and examples. We chose to add pocketsphinx because it's free and gives people a way to test. We don't have any monitary support from any of the commerical ASR/TTS providers nor do we have any support from any users who intend to improve the ASR/TTS support. Therefore given the endless hours we spend working on FS we have to decide what to work on and what to put aside.

We are currently looking at trying get unimrcp working but again, nobody is willing to pay so the timeline is extended to our spare time. We want to support every ASR/TTS interface we can because it helps to expand our flexablilty but it simply will take a while.




On Mon, Jan 12, 2009 at 5:09 PM, <mszlazak@aol.com (mszlazak@aol.com)> wrote:

[mszlazak at aol.com]

"My god" I would LOVE it if this is really the case and would praise pocketsphinx (PS) and FS to no end. But my experience has been different.

First, I tried the pizza demo with a soft phone and later by outside phone calls to my Linksys 3102 pstn-to-voip gateway.
Second, I tried these two set-ups again but with Voxeo's Prophecy ASR.

Both are as is and by this I mean there was no training of PocketSphinx just running the pizza demo and with Prophecy there is no training because it can't be trained.

Prophecy is quite good but the FS/Pocketsphinx pizza demo isn't and I couldn't use it at a pizza join. Also, I get a much better experience when calling LumenVox and trying their pizza demo.

Now, maybe Prophecy is the type of asr that doesn't require hours of training to make it speaker independent. I know that the Sphinx family are the types of ASR that do need this.

So, if there is some settings for adaptation of Pocketsphinx for speaker independence then are they turned on?

How many hours of calls to a business should an owner expect before PocketSphinx gets good enough not to scare customers away?

If there are many hours needed then I could see using another ASR in the mean time, recording their calls and feeding the audio to Pocketsphinx for training, then switching to Pocketspinx once it's "tuned up." At least this way a business doesn't have to deal with a "virgin" pocketsphinx.


Mark



-----Original Message-----
From: Brian West <brian@freeswitch.org>
To: freeswitch-users@lists.freeswitch.org
Sent: Mon, 12 Jan 2009 3:21 pm
Subject: Re: [Freeswitch-users] FreeSWITCH, MRCP and Perl

[paulh at instruments.com]

What would it take to put a budget together to for this project?


Date: Tue, 13 Jan 2009 01:55:36 -0500
From: mszlazak@aol.com
Subject: Re: [Freeswitch-users] FreeSWITCH, MRCP and Perl
To: freeswitch-users@lists.freeswitch.org
Message-ID: <8CB436312A08329-80C-1B5D@MBLK-M24.sysops.aol.com>
Content-Type: text/plain; charset="us-ascii"


"My god" I would LOVE it if this is really the case and would praise
pocketsphinx (PS) and FS to no end. But my experience has been different.

First, I tried the pizza demo with a soft phone and later by outside phone
calls to my Linksys 3102 pstn-to-voip gateway.
Second, I tried these two set-ups again but with Voxeo's Prophecy ASR.

Both are as is and by this I mean there was no training of PocketSphinx just
running the pizza demo and with Prophecy there is no training because it
can't be trained.

Prophecy is quite good but the FS/Pocketsphinx pizza demo isn't and I
couldn't use it at a pizza join. Also, I get a much better experience when
calling LumenVox and trying their pizza demo.

Now, maybe Prophecy is the type of asr that doesn't require hours of
training to make it speaker independent. I know that the Sphinx family are
the types of ASR that do need this.

So, if there is some settings for adaptation of Pocketsphinx for speaker
independence then are they turned on?
?
How many hours of calls to a business should an owner expect before
PocketSphinx gets good enough not to scare customers away?

If there are many hours needed then I could see using another ASR in the
mean time, recording their calls and feeding the audio to Pocketsphinx for
training, then switching to Pocketspinx once it's "tuned up." At least this
way a business doesn't have to deal with a "virgin" pocketsphinx.



Mark





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[anthony.minessale at g...]

I'm missing something, What is your point exactly?

I *just* explained that we want to support unimrcp so you can use Prophecy if you wish so we get it, there is no need to continue to complain. I tried to tell you that we are short on time and we are trying our best.

We had openmrcp and the devloper discontinued the project. Now we need to get rid of it and switch to unimrcp.

If you recall, you called us for consulting, then spent an hour on the phone gathering free information then proceeded to get all kinds of free help on this list using the free software we have made available to you. It's great that Prophecy is the only place you want to spend any money and I encourage you to do so we can connect you with Voxeo any time. But what else exactly do you want from us?

You may want to factor in that your limited experience and particular requirements contribute to your trouble setting everything up so clearly the pocketsphinx route is not for you. (You are only the 2nd person to try it on windows for instance)

I keep reading all of your emails and I am trying to understand exactly what you want from us.





On Tue, Jan 13, 2009 at 12:55 AM, <mszlazak@aol.com (mszlazak@aol.com)> wrote: