Speech recognition in Python

Introduction

I always want to lower the threshold for programming and CG production, but Maya also wants to move with voice recognition, so I'm doing a lot of research.

This article hasn't gotten to the point of working with Maya.

It's just a test of the Microsoft Speech API that comes standard with Windows.

procedure

Windows10 Python 2.7.12 pywin32==220

1. python -m virtualenv venv
2. venv\Scripts\activate.bat
3. Install win32com
4. Maybe you have to install Speech SDK
5. Convert Microsoft Speech Object Library 5.4 to python code with python venv \ Lib \ site-packages \ win32com \ client \ makepy.py

When the following program is executed, it will wait for voice input with the message "Ready", and the character string will be output to the standard output in response to the voices "One", "Two", "Three", "Four", and "Hello".

main.py

#!/usr/bin/env python
# coding=utf-8

from __future__ import absolute_import, division, print_function

from win32com.client import constants
import win32com.client
import pythoncom


class ContextEvents(win32com.client.getevents("SAPI.SpSharedRecoContext")):
    u"""Callback class called when a phrase is recognized

Register words in advance.
    """
    def OnRecognition(self, StreamNumber, StreamPosition, RecognitionType, Result):
        newResult = win32com.client.Dispatch(Result)
        print(u"You said: {0}".format(newResult.PhraseInfo.GetText()))


class SpeechRecognition(object):
    def __init__(self, wordsToAdd):
        u"""Various initialization"""
        self.speaker = win32com.client.Dispatch("SAPI.SpVoice")

        self.listener = win32com.client.Dispatch("SAPI.SpSharedRecognizer")
        self.context = self.listener.CreateRecoContext()
        self.grammar = self.context.CreateGrammar()
        self.grammar.DictationSetState(0)

        self.wordsRule = self.grammar.Rules.Add(
            "wordsRule",
            constants.SRATopLevel + constants.SRADynamic, 0)
        self.wordsRule.Clear()
        for word in wordsToAdd:
            self.wordsRule.InitialState.AddWordTransition(None, word)
        self.grammar.Rules.Commit()
        self.grammar.CmdSetRuleState("wordsRule", 1)
        self.grammar.Rules.Commit()
        self.eventHandler = ContextEvents(self.context)

        self.say(u"Junbikanryo")

    def say(self, phrase):
        u"""Let me talk"""
        self.speaker.Speak(phrase)


if __name__ == '__main__':
    wordsToAdd = ["One", "Two", "Three", "Four", u"Hello"]
    speechReco = SpeechRecognition(wordsToAdd)
    while True:
        pythoncom.PumpWaitingMessages()

I'm sorry regardless of Maya.

reference

[Play COM with Python + pywin32 to talk. ](Https://mimumimu.net/blog/2011/07/02/python-pywin32-%E3%81%A7-com-%E5%8F%A9%E3%81%84%E3%81%A6% E3% 81% 97% E3% 82% 83% E3% 81% B9% E3% 82% 89% E3% 81% 9B% E3% 82% 8B% E3% 80% 82 /) Python: win32com.client.getevents(“SAPI.SpSharedRecoContext”) returns None