88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
from freeswitch import *
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from py_modules.speechtools import Grammar, SpeechDetect
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from py_modules.speechtools import SpeechObtainer
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import os
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VOICE_ENGINE = "cepstral"
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VOICE = "William"
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GRAMMAR_ROOT = "/usr/src/freeswitch_trunk/scripts"
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"""
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Example speech recognition application in python.
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How to make this work:
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* Get mod_openmrcp working along with an MRCP asr server
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* Add /usr/src/freeswitch/scripts or equivalent to your PYTHONPATH
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* Restart freeswitch
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* Create $GRAMMAR_ROOT/mainmenu.xml from contents in mainmenu() comments
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"""
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class RecipeWizard:
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def __init__(self, session):
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self.session = session
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self.session.set_tts_parms(VOICE_ENGINE, VOICE)
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self.main()
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def main(self):
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console_log("debug", "recipe wizard main()\n")
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self.speechdetect = SpeechDetect(self.session, "openmrcp", "127.0.0.1")
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self.speechobtainer = SpeechObtainer(speech_detect=self.speechdetect,
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required_phrases=1,
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wait_time=5000,
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max_tries=3)
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gfile = os.path.join(GRAMMAR_ROOT, "mainmenu.xml")
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self.grammar = Grammar("mainmenu", gfile, "input", 80, 90)
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self.speechobtainer.setGrammar(self.grammar)
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console_log("debug", "calling speechobtainer.run()\n")
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self.speechobtainer.detectSpeech()
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self.session.speak("Hello. Welcome to the recipe wizard. Drinks or food?")
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result = self.speechobtainer.run()
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console_log("debug", "speechobtainer.run() result: %s\n" % result)
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if result:
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self.session.speak("Received result. Result is: %s" % result[0])
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else:
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self.session.speak("Sorry, I did not hear you")
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console_log("debug", "speechobtainer.run() finished\n")
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def mainmenu():
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"""
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<!DOCTYPE grammar PUBLIC "-//W3C//DTD GRAMMAR 1.0//EN"
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"http://www.w3.org/TR/speech-grammar/grammar.dtd">
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<grammar xmlns="http://www.w3.org/2001/06/grammar" xml:lang="en"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://www.w3.org/2001/06/grammar
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http://www.w3.org/TR/speech-grammar/grammar.xsd"
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version="1.0" mode="voice" root="root">
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<rule id="root" scope="public">
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<rule id="main">
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<one-of>
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<item weight="10">drinks</item>
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<item weight="2">food</item>
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</one-of>
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</rule>
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</rule>
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</grammar>
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"""
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pass
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def handler(uuid):
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session = PySession(uuid)
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session.answer()
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rw = RecipeWizard(session)
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session.hangup("1")
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