Detailed explanation of the steps to use PHP to write Baidu speech synthesis API docking program

Detailed explanation of the steps of using PHP to write Baidu speech synthesis API docking program

1. Preparation work

Baidu Text to Speech (Baidu Text to Speech, referred to as TTS) is an artificial intelligence technology that provides online speech synthesis services that can convert text into audio files. To use PHP to write the Baidu speech synthesis API docking program, some preparations need to be done first.

1. Get Baidu developer account.

If you don’t have a Baidu developer account yet, you need to register one first. After successful registration, log in to the Baidu developer website.

2. Create an application.

Create an application on the Baidu developer website and select the "Speech Synthesis" service under the "Speech Technology" category. After successful creation, you can get an App ID, API Key and Secret Key.

3. Download and install PHP SDK.

Baidu provides a PHP SDK that can be easily connected with Baidu speech synthesis API. The latest version of the PHP SDK can be downloaded from the Baidu developer website.

2. Code Implementation

The following is a code example of a Baidu speech synthesis API docking program written in PHP:

<?php
require_once 'AipSpeech.php';

// 设置APPID/AK/SK
const APP_ID = 'your_app_id';
const API_KEY = 'your_api_key';
const SECRET_KEY = 'your_secret_key';

$client = new AipSpeech(APP_ID, API_KEY, SECRET_KEY);

// 需要转换成语音的文本
$text = '你好，欢迎使用百度语音合成！';

// 调用语音合成接口
$result = $client->synthesis($text, 'zh', 1, array(
    'vol' => 5,
));

// 保存语音文件
if(!is_array($result)){
    file_put_contents('audio.mp3', $result);
}
?>

In the above code, you first need to introduce AipSpeech.php file, which is the PHP SDK provided by Baidu.

Next, configure the SDK by setting the constants APP_ID, API_KEY, and SECRET_KEY.

Then, create an AipSpeech object, which is used to call Baidu speech synthesis API. You need to pass in APP ID, API Key and Secret Key as parameters.

Next, set the text that needs to be converted into speech. Here we take "Hello, welcome to Baidu speech synthesis!" as an example.

Finally, call the synthesis method, which is used to request the Baidu speech synthesis API to convert the text into an audio file. The parameters of this method are: input text, language, speaker, and parameter settings.

If the call is successful, an audio data will be returned, and the audio data will be saved to the local file audio.mp3 through file_put_contents.

3. Run and test

Save the above code as a PHP file, such as baidu_tts.php. Then, switch to the directory where the file is located in the terminal or command line interface, and execute the following command:

php baidu_tts.php

If everything goes well, a file named audio.mp3# will be generated in the current directory. ##audio file.

You can use an audio player or other software to play the file and check whether the speech synthesis effect is as expected.

4. Summary

This article introduces in detail the steps of using PHP to write Baidu speech synthesis API docking program, and provides code examples. By referring to this article, I hope readers can successfully write their own Baidu speech synthesis API docking program and realize the speech synthesis functions they need.

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