Guide to Speech Recognition and Speech Synthesis Technology for PHP and Mini Programs

Guide to Speech Recognition and Speech Synthesis Technology for PHP and Mini Programs

In recent years, speech technology has been widely used in various application scenarios. Whether in web development or small program development, speech recognition and speech synthesis have become one of the common functional requirements. This article will introduce how to use PHP and small programs to implement speech recognition and speech synthesis functions, and provide corresponding code examples.

1. PHP Speech Recognition Technology Guide

Speech recognition technology is the process of converting speech signals into text, allowing machines to understand and process speech information. In PHP, we can use the speech recognition API provided by Baidu AI to implement the speech recognition function. The following are the implementation steps:

1. Register an account on the Baidu AI open platform and create a speech recognition application. Obtain the API Key and Secret Key of the application.
2. Install Baidu AI SDK in the PHP project, for example, use composer to install:

composer require baidu-aip/sdk

3. Create a PHP file, introduce Baidu AI SDK, and configure API Key and Secret Key :

<?php
require_once './vendor/autoload.php';
use BaiduAipAipSpeech;

// 设置APPID/AK/SK
$config = [
    'appId' => 'your_app_id',
    'apiKey' => 'your_api_key',
    'secretKey' => 'your_secret_key',
];

// 创建一个AipSpeech对象
$client = new AipSpeech($config);

4. Call the speech recognition interface provided by Baidu AI SDK to implement speech recognition:

// 读取音频文件
$audio = file_get_contents('path_to_audio_file');

// 调用语音识别接口
$result = $client->asr($audio, 'pcm', 16000, [
    'dev_pid' => 1536,
]);

// 输出识别结果
var_dump($result);

path_to_audio_file in the above code is The path of the audio file to be recognized, dev_pid is the language model.

2. Mini Program Speech Recognition Technology Guide

A mini program is a lightweight application that also includes speech recognition requirements. In the development of mini programs, we can use the speech recognition interface provided by WeChat to implement the speech recognition function. The following are the implementation steps:

1. Introduce the speech recognition component into the mini program and add the following code in the app.json file:

"plugins": {
  "voiceRecognizer": {
    "version": "1.1.0",
    "provider": "wxaaa12345678"
  }
}

2. Use the speech recognition component in the mini program page, for example in the index.html file:

<voice-recognizer id="voiceRecognizer" bind:result="onVoiceRecognizeResult"></voice-recognizer>

<button bindtap="startRecognize">开始识别</button>

<text>{{result}}</text>

3. Write the corresponding in the js file of the mini program page Code:

Page({
  data: {
    result: '',
  },

  startRecognize() {
    const voiceRecognizer = this.selectComponent('#voiceRecognizer');
    voiceRecognizer.startRecognize();
  },

  onVoiceRecognizeResult(e) {
    this.setData({
      result: e.detail.result,
    });
  },
})

In the above code, in the mini program page, we trigger the startRecognize method by clicking the button and call the startRecognize method of the speech recognition component. Start speech recognition. The recognition result is returned through the bound onVoiceRecognizeResult method and displayed on the page.

3. Speech synthesis technology guide

Speech synthesis technology is the process of converting text information into speech signals, allowing machines to express text information through speech. In PHP and mini programs, we can use the speech synthesis API provided by Baidu AI to implement the speech synthesis function. The following are the implementation steps:

1. Create a PHP file, introduce Baidu AI SDK, and configure API Key and Secret Key:

<?php
require_once './vendor/autoload.php';
use BaiduAipAipSpeech;

// 设置APPID/AK/SK
$config = [
    'appId' => 'your_app_id',
    'apiKey' => 'your_api_key',
    'secretKey' => 'your_secret_key',
];

// 创建一个AipSpeech对象
$client = new AipSpeech($config);

2. Call Baidu AI SDK to provide Speech synthesis interface to implement speech synthesis:

// 调用语音合成接口
$result = $client->synthesis('要合成的文本', 'zh', 1, [
    'vol' => 5,
]);

// 将合成的语音写入文件
if (!is_array($result)) {
    file_put_contents('path_to_audio_file', $result);
}

'Text to be synthesized' in the above code is the text information to be synthesized, 'zh' is the language type, 'vol' is the volume control parameter.

In the mini program, we can use the speech synthesis interface officially provided by WeChat to implement the speech synthesis function. Please refer to WeChat official documentation for specific steps.

Summary:

This article introduces how to use PHP and small programs to implement speech recognition and speech synthesis functions, and provides corresponding code examples. Through these guidelines, we can easily use voice technology in our projects and provide users with a more convenient interactive experience. Hope this article is helpful to readers!

The above is the detailed content of Guide to Speech Recognition and Speech Synthesis Technology for PHP and Mini Programs. For more information, please follow other related articles on the PHP Chinese website!