->Speech recognition?2

Archiver

What would i need to write/do that would be able to understand what i
am saying if i use pbasic and the microcontroller with eeprom?

what would i need to do if i use a PIC?

and what would i need to do to understand the numbers that the phone
is dialing with pbasic?

p.s. thanks, these are all good thoughts, im sure im going to ask
more too. =-)









--- In basicstamps@yahoogroups.com, "George Bush" <capthoohoo@y...>
wrote:
> --- In basicstamps@yahoogroups.com, "Tim Hart" <tim.hart@h...>
wrote:
> > Thinking out loud here....
> >
> > Motorola (or Nokia) phone with no service contract.....tell it to
> "call home"....have the stamp monitor the output of the phone as it
> dials. Then execute code based on the numbers it dialed.... Of
> course it won't cost anything for the phone to attempt a call
without
> a contract [noparse]:)[/noparse]
> >
> > Sure beats reinventing the speech recognition wheel!!
> >
> > Tim
>
> Tim - HA! I like it! Excellent suggestion for a work around!
>
> Dennis - if the A/D wouldn't be able to sample fast enough, we will
> have to speak vvvveeeerrryyy sssllloooowwllyyy to our Stamps! ;-)
>
>
> Neil

Archiver

--- In basicstamps@yahoogroups.com, "virtualeast" <vea@v...> wrote:
> What would i need to write/do that would be able to understand what
i
> am saying if i use pbasic and the microcontroller with eeprom?
>
> what would i need to do if i use a PIC?
>
> and what would i need to do to understand the numbers that the phone
> is dialing with pbasic?
>
> p.s. thanks, these are all good thoughts, im sure im going to ask
> more too. =-)
>

The first thing you do is decide what you need as specifically as
possible. Are you making "The Clapper" or are you trying to make
something that would emulate the functionality of the cell phone? I
would suggest starting with The Clapper. It would give you practice
with the elements you would need to move on to more complicated sould
recognition. The answer to all your questions is in the
specifications of what you need to build.

The three blocks I talked about before could be the basis of your
design for all of the cases you ask about above. 1) High speed A/D
(How fast, how much data?) 2) FFT function 3) known samples in memory
with a "best fit" comparison algorithm. In each of your cases these
blocks get implemented differently, but conceptually you need all
three. In Tim's phone suggestion you would be sampling phone tones
rather than the human voice.

Neil

Archiver

You really really don't want to roll your own on this. Yes, in theory an
FFT and a correlation algorithm will do the trick, but in real life
there are a lot of tricks required to make it all work -- especially
without training.

HOWEVER, there are several Ics that do this already to some degree.
Phillips makes the "Hello IC"
http://www.semiconductors.philips.com/news/content/file_690.html

http://www.sensoryinc.com/html/company/pr99_6.html

ftp://svr-ftp.eng.cam.ac.uk/pub/comp.speech/info/VoiceRecognitionProcess
ors

The OKI looks good as long as you can live with their standard words.
Look at the technology that goes into some of these and you'll see what
I mean.

I don't mean to be discouraging, but this would be a huge undertaking
even on a DSP or other high-performance chip.

Al Williams
AWC
* Analog/Digital I/O with VB, Excel, C++, Java, more...
http://www.al-williams.com/gp3.htm






>

---

Original Message

---

> From: virtualeast [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=pfCouqeDOZgPYhLBSHdtMULB6BRm412ZHz1EBVvEybiaKstTAT6seiLwANDddono1ZYvLoYTRI-F]vea@v...[/url
> Sent: Wednesday, July 09, 2003 6:58 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] ->Speech recognition?2
>
>
> What would i need to write/do that would be able to understand what i
> am saying if i use pbasic and the microcontroller with eeprom?
>
> what would i need to do if i use a PIC?
>
> and what would i need to do to understand the numbers that the phone
> is dialing with pbasic?
>
> p.s. thanks, these are all good thoughts, im sure im going to ask
> more too. =-)
>
>
>
>
>
>
>
>
>
> --- In basicstamps@yahoogroups.com, "George Bush" <capthoohoo@y...>
> wrote:
> > --- In basicstamps@yahoogroups.com, "Tim Hart" <tim.hart@h...>
> wrote:
> > > Thinking out loud here....
> > >
> > > Motorola (or Nokia) phone with no service contract.....tell it to
> > "call home"....have the stamp monitor the output of the phone as it
> > dials. Then execute code based on the numbers it dialed.... Of
> > course it won't cost anything for the phone to attempt a call
> without
> > a contract [noparse]:)[/noparse]
> > >
> > > Sure beats reinventing the speech recognition wheel!!
> > >
> > > Tim
> >
> > Tim - HA! I like it! Excellent suggestion for a work around!
> >
> > Dennis - if the A/D wouldn't be able to sample fast enough, we will
> > have to speak vvvveeeerrryyy sssllloooowwllyyy to our Stamps! ;-)
> >
> >
> > Neil
>
>
> To UNSUBSCRIBE, just send mail to:
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>

Archiver

At 01:43 PM 7/10/03 +0000, Allan Lane wrote:
>I could have sworn I found a speaker-dependent
>speech module, which could be trained to recognize
>15 words, for around $100.00, and which would
>interface with a PIC, AVR, or Stamp.

This may be the unit to which you are making reference:
http://www.imagesco.com/catalog/hm2007/SpeechRecognitionKit.html

Regards,

Bruce Bates

Archiver

I could have sworn I found a speaker-dependent
speech module, which could be trained to recognize
15 words, for around $100.00, and which would
interface with a PIC, AVR, or Stamp.

This approach is your only hope, as the Stamp
by itself does not have the speed or ram space
for voice recognition.

For the numbers -- there are several inexpensive
chips which understand DTMF, and there are
Nuts&Volts articles on the Parallax website
on this part.


--- In basicstamps@yahoogroups.com, "virtualeast" <vea@v...> wrote:
> What would i need to write/do that would be able to understand what
i
> am saying if i use pbasic and the microcontroller with eeprom?
>
> what would i need to do if i use a PIC?
>
> and what would i need to do to understand the numbers that the
phone
> is dialing with pbasic?
>
> p.s. thanks, these are all good thoughts, im sure im going to ask
> more too. =-)
>
>
>
>
>
>
>
>
>
> --- In basicstamps@yahoogroups.com, "George Bush" <capthoohoo@y...>
> wrote:
> > --- In basicstamps@yahoogroups.com, "Tim Hart" <tim.hart@h...>
> wrote:
> > > Thinking out loud here....
> > >
> > > Motorola (or Nokia) phone with no service contract.....tell it
to
> > "call home"....have the stamp monitor the output of the phone as
it
> > dials. Then execute code based on the numbers it dialed.... Of
> > course it won't cost anything for the phone to attempt a call
> without
> > a contract [noparse]:)[/noparse]
> > >
> > > Sure beats reinventing the speech recognition wheel!!
> > >
> > > Tim
> >
> > Tim - HA! I like it! Excellent suggestion for a work around!
> >
> > Dennis - if the A/D wouldn't be able to sample fast enough, we
will
> > have to speak vvvveeeerrryyy sssllloooowwllyyy to our Stamps! ;-)
> >
> >
> > Neil