How to do Speech Recognition and Synthesis using Python...

Hi all

          This  post will be useful for those who do projects using speech recognition and sythesis .This method is very simple for  implementing speech projects . Actually speech recognition and synthesis are on still development stage . No ideal speech recognition tools are available .Here i introduce a method for doing this  .Its not very accurate ,but if we train well ,error can be reduce .The tools  you need are given below.The working platform is Windows XP

1)Python 2.6 for Windows 

http://www.python.org/getit/releases/2.6.6/

2)Windows Speech SDK

http://www.microsoft.com/download/en/details.aspx?id=10121

3)Python Speech Module

http://code.google.com/p/pyspeech/

4)Good Speech Voices

http://cepstral.com/downloads/(Not free)

These are the things we need .Before we start ,check the mic and confirm if it working or not .Check the speakers also . 

1)Install the voices first or use the default voice of windows(MS Sam)

2)Install Speech SDK :After Installing Speech SDK ,we need to train the speech profile for getting good accuracy .The option for training is available in Control Panel .We can export and import the training profile .So you can train on one system and can move to other system without re-training .The tool for import/export is given below

Profile Manager:

http://www.microsoft.com/download/en/details.aspx?id=22358

3)Install Python 2.6

4)Install speech module :  Here is the command for installing speech module

Take command promt and change the path to speech module folder path

Enter this command after that

                    python setup.py install

5)Installation Done

Checking the Speech to text and Text to Speech in Python

           import speech

           while True:

                       phrase = speech.input()     #Convert Speech to text

                       speech.say("You said %s" % phrase)   #Convert the converted text to Speech

                       if phrase == "turn off":                         #if the text is turn off ,it will quit

                                  break 

              

For details you can refer the following link

http://code.google.com/p/pyspeech/