How to implement speech recognition and synthesis in PHP?

With the continuous development of artificial intelligence technology, speech recognition and synthesis functions have become one of the more and more popular technologies today, and the PHP language is also a widely used programming language in Web development. This article will introduce how to implement speech recognition and synthesis functions in PHP.

1. Speech recognition

Speech recognition refers to the process of converting speech into text. Many companies and organizations provide speech recognition services through API or SDK, such as Baidu Speech Recognition, HKUST Iflytek, etc., we can implement speech recognition in PHP programs by calling these APIs or SDKs.

Taking Baidu speech recognition as an example, the implementation method is as follows:

1. Register for the Baidu AI open platform, create an application in https://ai.baidu.com/ and obtain the API Key and Secret Key.

2. Download Baidu Speech Recognition SDK, https://ai.baidu.com/sdk#asr (or use composer to manage dependencies), and choose different SDKs according to different operating systems.

3. Introduce the SDK into the PHP program and create a new PHP file. The example is as follows:

<?php
require_once 'AipSpeech.php';

// 你的 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);

$content = file_get_contents('test.wav');

$result = $client->asr($content, 'wav', 16000, array(
    'dev_pid' => 1536,
));

print_r($result);

The three constants in the comments represent APPID, API Key and Secret Key respectively. Call the Baidu speech recognition interface through the $client->asr method and pass the parameters, where $content is the file that needs to be speech recognized, and the other parameters are the audio format, sampling rate, etc.

4. Run the above PHP file. If everything is normal, you can get the recognition result.

2. Speech synthesis

Speech synthesis refers to the process of converting text into speech. Similarly, we can implement the speech synthesis function in PHP programs through API or SDK.

Taking Baidu speech synthesis as an example, the implementation method is as follows:

1. Register for the Baidu AI open platform, create an application in https://ai.baidu.com/ and obtain the API Key and Secret Key.

2. Download Baidu speech synthesis SDK, https://ai.baidu.com/sdk#tts (or use composer to manage dependencies), and choose different SDKs according to different operating systems.

3. Introduce the SDK into the PHP program and create a new PHP file. The example is as follows:

<?php
require_once 'AipSpeech.php';

// 你的 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);

$result = $client->synthesis('百度语音合成测试', 'zh', 1, array(
    'vol' => 5,
));

// 识别正确返回语音二进制，否则返回false
if(!is_array($result)){
    file_put_contents('auido.mp3', $result);
}

Similar to speech recognition, the three constants in the comments represent APPID, API Key and Secret Key respectively. . Call the Baidu speech synthesis interface through the $client->synthesis method and pass parameters. The first parameter is the text to be synthesized, and the other parameters are language type, speaking speed, etc. Finally, the speech binary is stored in a file.

4. Run the above PHP file. If everything is normal, you can get the speech synthesized audio file.

The above are the basic steps to implement speech recognition and synthesis functions in PHP. For different APIs or SDKs, the specific operation methods may have some differences, but the overall process will be relatively similar. Through the implementation of these functions, we can add more interactions and personalized experiences to web applications.

The above is the detailed content of How to implement speech recognition and synthesis in PHP?. For more information, please follow other related articles on the PHP Chinese website!