LabView Voice Recognition

Today let’s do something interesting, what about voice recognition on LabView? Something that when we say “Car” in Spanish will look up the word “Carro”, also when we say “Reproductor” move the mouse pointer and makes click on the play button of the Windows Media Player on the screen.

Take into account that my computer is in Spanish but if your computer is in English you can input English words or even another language.

In order to do that we have first to train our computer to get the best audio quality and it could recognize our voice, to do that follow the instructions on the video below.

  

Once we have trained our computer we can start with Labview and I’m going to explain the basic functioning of this exercise.

Once we click on “Run” the voice recognition software from Windows should be turn on and be ready to listen to our commands, and of course, if we say something we want it to recognize it and execute something on our program. In order to do this we need a SubVi that is call “Speech Recognizer Initialize” an it looks like this:

I have uploaded the files on a shared folder so you can download it without problems.

So, we have the main program to run in loop continuously where inside of it it has an event case where depending on the event that occurs it will do something, the first one in timeout which is the default event case, you can delete it or you can leave as I did.

After the timeout event I created  the stop button state event which will STOP the Vi whenever I want it to stop.

And the last event is the string value event coming from the SubVi “Speech Recognizer Initialize” where we assign one word for each command, we set 6 word (random) to try our program.

Inside the event case we have different words for each command so to do something different in each command we have to use the case structure like in the image below. In every case is different what we want the program to do.

The program works really as we expected to work and we had to tweak a little bit the mouse pointer because the screen of each computer is different. That is why we have enable the viewing option of the coordinates of the mouse.

When we say “Libro” it should go to Google and look up the word libro.



When we say “Reproductor” the Windows Media Player should be reproducing the song we programmed.




You can download the files in this link:

https://drive.google.com/folderview?id=0B7dtMeeMPK5rfnJCSVlRVTkxRzdSeHBMWDJ6THVPWmdHdm1kZ3NwNTYzSEJ5b0ZmdlFoMG8&usp=sharing

File name: Voice_recognition.zip

Version of Proteus 8.1

BuzzNet Tags: Labview