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Dear Sirs
 
i am looking for program or a source code of computer speech analysis for pronunciation therapy , (based on speech verification feedback) ,what i mean a program to analyse the recorded voice of letter and identify the spoken letter and print a feed back of the recorded letter (just to identify the letter)
 
please i am in urgent need of your help
 

 
thanks
Posted 11-Mar-13 10:58am
Comments
ryanb31 at 11-Mar-13 16:08pm
   
what does google have to say about this? I don't think anyone is going to give you source code in a hurry. Have you done anything yet?
hotloveshake at 11-Mar-13 16:31pm
   
ok , if i have already a recorded sounds of English alphabet such as A B C ... etc , how i can make a form that record my voice and recognize if i said A , Or B , or C ...... etc ,voice and alphabet feedback of the spoken letter !

1 solution

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Solution 1

The chances of anyone here just handing over such code are 0.
 
What you ask is extremely complex and is probably only going to be found in very expensive off-the-shelf products (such as RosettaStone)RosettaStone[^] where those algorithms are very proprietary and very closely guarded secrets.
 
You can TRY open source libraries, but the level of success you get, it any at all, depends entirely on your very specific requirements and the capabilities of the libraries you test.
 
You can get a start by looking at this[^].
  Permalink  
Comments
Sergey Alexandrovich Kryukov at 11-Mar-13 16:21pm
   
Agree, my 5 (but such a radical estimate for probability remains on you; why not, say, 1.0E-8? :-)
—SA
Dave Kreskowiak at 11-Mar-13 16:26pm
   
I was thinking closer to 1.0E-80. ;)
Sergey Alexandrovich Kryukov at 11-Mar-13 16:53pm
   
Whatever. Probability underflow :-)
—SA
hotloveshake at 11-Mar-13 16:42pm
   
ok , if i have already a recorded sounds of English alphabet such as A B C ... etc , how i can make a form that record my voice and recognize if i said A , Or B , or C ...... etc ,voice and alphabet feedback of the spoken letter
Sergey Alexandrovich Kryukov at 11-Mar-13 16:57pm
   
This is all not enough, not even close. Two good pronunciations by people with different individual features of their voices will show very different records, but good and intentionally bad pronunciations by the same person may look very close. I know what you can do: you can become a scientist in several fields of sciences in related field and start a big research. And it won't be your "average" PhD, it will be something real and way more serious... Care to try? Don't forget to send me the copies of your work, in appreciation of this advice which is going to change all your life... :-)
—SA
hotloveshake at 14-Mar-13 5:58am
   
ok ,thank you all of you for your help , but i have another thing , is there a code or a way that i can convert the wave form values from analog to digital in binary form ?!!!!
it will help me a lot , thanks
Dave Kreskowiak at 11-Mar-13 18:31pm
   
What you now describe is Speech Recognition. That's built into the .NET Framework starting with version 3.0, I think. You can read more about it at http://msdn.microsoft.com/en-us/library/system.speech.recognition.aspx
 
If you're looking for anything beyond it's best guess at what you said, speech recognition won't help you.
hotloveshake at 14-Mar-13 5:58am
   
ok ,thank you all of you for your help , but i have another thing , is there a code or a way that i can convert the wave form values from analog to digital in binary form ?!!!!
it will help me a lot , thanks
Dave Kreskowiak at 14-Mar-13 7:26am
   
Ummm, the values are not analog. The values you see in the computer are always digital, so this question doesn't make any sense.
 
hotloveshake at 14-Mar-13 7:58am
   
ok , can i make a recognition for one letter only ? if yes , how?
hotloveshake at 14-Mar-13 8:04am
   
or how can i know the sound wave properties of the letter ?!
Dave Kreskowiak at 14-Mar-13 8:16am
   
You don't. In speech recognition, you don't have access to the wave form data. The library wraps all that and keeps it away from you. The point of the library is that you are concerned about the letters and words that it is returning, not how it got them.
 
This is where you have to do a ton of research. Someone just giving you a code snippet is not going to help you much in understanding the complexities of speech recognition.

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