bash script that installs Sphinxbase, Pocketsphinx, Gstreamer, and plugins needed for Gstreamer to work with Pocketsphinx and example.py file containing a simple example code.

example.py

#!/usr/bin/env python

# Copyright (c) 2008 Carnegie Mellon University.
#
# You may modify and redistribute this file under the same terms as
# the CMU Sphinx system.  See
# http://cmusphinx.sourceforge.net/html/LICENSE for more information.

# Edited by: Mahmoud Abdrabo on Wed Dec 25 2013

import pygtk
pygtk.require('2.0')
import gtk


import pygst
pygst.require('0.10')
import gst

class App(object):
    """GStreamer/PocketSphinx app"""
    def __init__(self):
        """Initialize a App object"""
        self.init_gst()

    def init_gst(self):
        """Initialize the speech components"""
        self.pipeline = gst.parse_launch('gconfaudiosrc ! audioconvert ! audioresample '
                                         + '! vader name=vad auto-threshold=true '
                                         + '! pocketsphinx name=asr ! fakesink')
        asr = self.pipeline.get_by_name('asr')
        asr.connect('result', self.asr_result)
        asr.set_property('configured', True)
        bus = self.pipeline.get_bus()
        bus.add_signal_watch()
        bus.connect('message::application', self.application_message)
        self.pipeline.set_state(gst.STATE_PAUSED)

    def asr_result(self, asr, text, uttid):
        """Forward result signals on the bus to the main thread."""
        struct = gst.Structure('result')
        struct.set_value('hyp', text)
        struct.set_value('uttid', uttid)
        asr.post_message(gst.message_new_application(asr, struct))

    def application_message(self, bus, msg):
        """Receive application messages from the bus."""
        msgtype = msg.structure.get_name()
        if msgtype == 'result':
            self.final_result(msg.structure['hyp'], msg.structure['uttid'])
            self.pipeline.set_state(gst.STATE_PAUSED)

    def final_result(self, hyp, uttid):
        """Insert the final result."""
        self.final_result = hyp
        print "#######FINAL_TEXT: ", hyp

    def start_listen(self):
        app.pipeline.set_state(gst.STATE_PLAYING)

app = App()
app.start_listen()
gtk.main()

install.sh

#!/bin/bash
#Author: Mahmoud Abdrabo
#Date: 2013 Wed Dec 25, 3:16:04

# copy/paste the following(without the '#') in your ~/.bashrc or ~/.bash_profile file 
# export LD_LIBRARY_PATH=/usr/local/lib/:$LD_LIBRARY_PATH
# export PS_BASE=/usr/local
# export GST_PLUGIN_PATH=/usr/local/lib/gstreamer-0.10"
#############################################################

echo "Did you add the lines to your .bashrc/.bash_profile? (y,n)"
read answer
echo $answer
if [ "$answer" = "y" ]; then

	sudo apt-get install subversion

	svn checkout 'http://svn.code.sf.net/p/cmusphinx/code/branches/pocketsphinx-0.6'

	cd pocketsphinx-0.6/sphinxbase/

	sudo apt-get install autoconf
	sudo apt-get install libtool

	./autogen.sh 
	make
	sudo make install

	cd ../pocketsphinx/
	./autogen.sh 
	make
	sudo make install

	sudo apt-get install python-pocketsphinx
	sudo apt-get install pocketsphinx-hmm-wsj1
	sudo apt-get install pocketsphinx-lm-wsj

	sudo apt-get install python-gst0.10 gstreamer0.10-plugins-good     gstreamer0.10-plugins-bad	gstreamer0.10-plugins-ugly

	sudo apt-get install gstreamer0.10-pocketsphinx

	sudo apt-get install gstreamer-tools

fi

if [ "$answer" = "n" ]; then
	echo "You'd better do! open the freakin file!! :D"
fi