Backend Development
Python Tutorial
Example of implementing Baidu speech recognition function in Python language
Example of implementing Baidu speech recognition function in Python language
In the future, artificial intelligence will occupy a very important position in the market, and Python language is the best programming language for studying artificial intelligence. Now, let us feel its charm!
The sample program provided by Baidu, whether C or Java version, is divided into two types: method1 and method2. The former is called implicit (the post is a json string, and the audio data is encoded into json), and the latter It is called explicit (the post is audio data). This article mainly introduces the usage examples of Baidu speech recognition API implemented in Python language. It has certain reference value. Friends in need can refer to it. I hope it can help everyone.
At the beginning, I considered that the pythonwave package dealt with "strings", and I was worried that it would be inconsistent with the C language array, so I chose the inefficient but safe method1,
That is, first base64 the audio data Encoding, plus sampling rate, number of channels and other information are gathered into a dict, and finally encoded into a json string
The result is always reported:
3300 The input parameters are incorrect
I have tried the urllib2 and pycurl packages successively, and both are in the above situation.
I had to switch to method2 and succeeded (it seems that the wave package does not store audio as a "string")
#encoding=utf-8
import wave
import urllib, urllib2, pycurl
import base64
import json
## get access token by api key & secret key
def get_token():
apiKey = "xxxxxxxx"
secretKey = "xxxxxxxxx"
auth_url = "https://openapi.baidu.com/oauth/2.0/token?grant_type=client_credentials&client_id=" + apiKey + "&client_secret=" + secretKey;
res = urllib2.urlopen(auth_url)
json_data = res.read()
return json.loads(json_data)['access_token']
def dump_res(buf):
print buf
## post audio to server
def use_cloud(token):
fp = wave.open('vad_0.wav', 'rb')
nf = fp.getnframes()
f_len = nf * 2
audio_data = fp.readframes(nf)
cuid = "xxxxxxxxxx" #my xiaomi phone MAC
srv_url = 'http://vop.baidu.com/server_api' + '?cuid=' + cuid + '&token=' + token
http_header = [
'Content-Type: audio/pcm; rate=8000',
'Content-Length: %d' % f_len
]
c = pycurl.Curl()
c.setopt(pycurl.URL, str(srv_url)) #curl doesn't support unicode
#c.setopt(c.RETURNTRANSFER, 1)
c.setopt(c.HTTPHEADER, http_header) #must be list, not dict
c.setopt(c.POST, 1)
c.setopt(c.CONNECTTIMEOUT, 30)
c.setopt(c.TIMEOUT, 30)
c.setopt(c.WRITEFUNCTION, dump_res)
c.setopt(c.POSTFIELDS, audio_data)
c.setopt(c.POSTFIELDSIZE, f_len)
c.perform() #pycurl.perform() has no return val
if __name__ == "__main__":
token = get_token()
use_cloud(token)Run results
{"corpus_no":"6150045491002357923","err_msg":"success.","err_no":0,"result":["播放小苹果，"],"sn":"243903724071431919050"}Related recommendations:
.Net development WeChat Detailed explanation of speech recognition examples on public platforms
A brief analysis of how to use JavaScript for speech recognition
HTML5 speech recognition tag writing method with pictures_html5 tutorial skills
The above is the detailed content of Example of implementing Baidu speech recognition function in Python language. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1664
14
1423
52
1321
25
1269
29
1249
24
PHP and Python: Different Paradigms Explained
Apr 18, 2025 am 12:26 AM
PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
Choosing Between PHP and Python: A Guide
Apr 18, 2025 am 12:24 AM
PHP is suitable for web development and rapid prototyping, and Python is suitable for data science and machine learning. 1.PHP is used for dynamic web development, with simple syntax and suitable for rapid development. 2. Python has concise syntax, is suitable for multiple fields, and has a strong library ecosystem.
How to run sublime code python
Apr 16, 2025 am 08:48 AM
To run Python code in Sublime Text, you need to install the Python plug-in first, then create a .py file and write the code, and finally press Ctrl B to run the code, and the output will be displayed in the console.
PHP and Python: A Deep Dive into Their History
Apr 18, 2025 am 12:25 AM
PHP originated in 1994 and was developed by RasmusLerdorf. It was originally used to track website visitors and gradually evolved into a server-side scripting language and was widely used in web development. Python was developed by Guidovan Rossum in the late 1980s and was first released in 1991. It emphasizes code readability and simplicity, and is suitable for scientific computing, data analysis and other fields.
Python vs. JavaScript: The Learning Curve and Ease of Use
Apr 16, 2025 am 12:12 AM
Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.
Is the company's security software causing the application to fail to run? How to troubleshoot and solve it?
Apr 19, 2025 pm 04:51 PM
Troubleshooting and solutions to the company's security software that causes some applications to not function properly. Many companies will deploy security software in order to ensure internal network security. ...
Golang vs. Python: Performance and Scalability
Apr 19, 2025 am 12:18 AM
Golang is better than Python in terms of performance and scalability. 1) Golang's compilation-type characteristics and efficient concurrency model make it perform well in high concurrency scenarios. 2) Python, as an interpreted language, executes slowly, but can optimize performance through tools such as Cython.
Where to write code in vscode
Apr 15, 2025 pm 09:54 PM
Writing code in Visual Studio Code (VSCode) is simple and easy to use. Just install VSCode, create a project, select a language, create a file, write code, save and run it. The advantages of VSCode include cross-platform, free and open source, powerful features, rich extensions, and lightweight and fast.
