Practical experience sharing between Python and Baidu intelligent voice interface

Sharing of practical experience in connecting Python and Baidu Intelligent Speech Interface

Overview
Baidu Intelligent Speech Interface is a powerful speech recognition and speech synthesis tool for Developers provide real-time speech-to-text and text-to-speech functions. This article will start from a practical point of view, introduce how to connect Baidu intelligent voice interface in Python, and show some code examples of common functions.

1. Preparation work
   Before using Baidu Intelligent Voice Interface, we need to do some preparation work:
   1.1 Register Baidu Intelligent Cloud Account
   Visit Baidu Intelligent Cloud official website (https: //cloud.baidu.com) and register an account, then log in to the console.
   1.2 Create an application
   Create a new speech synthesis or speech recognition application in the console, and obtain the API Key and Secret Key of the application. These keys will be used in subsequent code.

2. Install dependent libraries
   Use the following command to install Python dependent libraries:

   pip install baidu-aip

   This library is the Python SDK officially provided by Baidu and is used to communicate with Baidu intelligent voice interface communication.

3. Text to Speech
   The following is a simple code example that demonstrates how to use Baidu Intelligent Voice Interface to convert a piece of text into speech:

   from aip import AipSpeech
   
   APP_ID = 'your_app_id'
   API_KEY = 'your_api_key'
   SECRET_KEY = 'your_secret_key'
   
   client = AipSpeech(APP_ID, API_KEY, SECRET_KEY)
   
   text = "Hello, this is a test."
   
   result = client.synthesis(text, 'zh', 1, {
    'vol': 5,
    'per': 4,
   })
   
   if not isinstance(result, dict):
    with open('audio.mp3', 'wb') as f:
        f.write(result)

   In the code , we first introduce the AipSpeech module and initialize the client. Then, define a literal text and call the client.synthesis method to convert it to speech. Finally, the sound data is written to a file.

4. Voice to Text
   The following is a simple code example that demonstrates how to use Baidu Intelligent Voice Interface to convert a piece of speech into text:

   from aip import AipSpeech
   
   APP_ID = 'your_app_id'
   API_KEY = 'your_api_key'
   SECRET_KEY = 'your_secret_key'
   
   client = AipSpeech(APP_ID, API_KEY, SECRET_KEY)
   
   with open('audio.wav', 'rb') as f:
    audio_data = f.read()
   
   result = client.asr(audio_data, 'wav', 16000, {
    'dev_pid': 1536,
   })
   
   if 'result' in result:
    result_text = result['result'][0]
    print(result_text)

   In the code , we first introduce the AipSpeech module and initialize the client. Then, read an audio file and pass it as a parameter to the client.asr method for speech conversion. Finally, get the converted text from the API's return result.

Summary
This article introduces the practical experience of using Python to connect with Baidu intelligent voice interface, and gives code examples of text-to-speech and speech-to-text. In practical applications, we can make more flexible expansion and adjustments according to specific needs. I hope this article can be helpful to developers using Baidu intelligent voice interface.

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