python 语音识别 离线_Ubuntu16.04实现Sphinx离线语音识别

原贴地址：

自带Python2.7或3.0+版本都可以 使用的是3.5编译

需要安装SpeechRecognition模块

需要.wav作为测试数据

1 安装SpeechRecognition模块

pip install  SpeechRecognition`

1

若是3版本则使用pip3 .

2 安装验证

>>> import speech_recognition as sr

>>> sr.__version__

'3.8.1'

1

2

3

还可以看看它具备属性函数

3 创建Recognizer实例

>>> r = sr.Recognizer()

1

2

每个Recognizer实例有七个语音识别方法：

recognize_bing(): Microsoft Bing Speech

recognize_google(): Google Web Speech API

recognize_google_cloud(): Google Cloud Speech - requires installation of the google-cloud-speech package

recognize_houndify(): Houndify by SoundHound

recognize_ibm(): IBM Speech to Text

recognize_sphinx(): CMU Sphinx - requires installing PocketSphinx

recognize_wit(): Wit.ai

这次使用recognize_sphinx()，安装：

pip install PocketSphinx

1

如果出现以下错误：

输入图示命令：

sudo apt-get build-dep python-PocketSphinx

1

再次安装:

sudo pip install PocketSphinx --upgrade

1

则提示安装成功

4 使用测试

#!/usr/bin/env python3

# NOTE: this example requires PyAudio because it uses the Microphone class

import speech_recognition as sr

# obtain audio from the microphone

r = sr.Recognizer()

harvard = sr.AudioFile('harvard.wav')

with harvard as source:

audio = r.record(source)

# recognize speech using Sphinx

try:

print("Sphinx thinks you said " + r.recognize_sphinx(audio))

except sr.UnknownValueError:

print("Sphinx could not understand audio")

except sr.RequestError as e:

print("Sphinx error; {0}".format(e))

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

前期可以在解析器上一行行输入是否能运行，测试语音harvard.wav在https://github.com/realpython/python-speechrecognition/tree/master/audio_files

可以下载。或者自己提供也行，也可以通过调用麦克风录音保存文件。

with sr.Microphone() as source:

print("Say something!")

audio = r.listen(source)

1

2

3

5 结果

效果其实比百度api好一些，因为是英文识别

尝试其他的应用接口的话可以查阅其他文档。

参考:

1.https://github.com/Uberi/speech_recognition

2.https://realpython.com/python-speech-recognition/

3.http://www.mamicode.com/info-detail-93746.html

4,https://blog.csdn.net/qiaocuiyu/article/details/52093509

5.http://blog.itpub.net/16582684/viewspace-1243341/

---------------------

作者：幸福诗歌