How to connect PHP to Baidu speech synthesis interface?

How does PHP connect to Baidu speech synthesis interface?

Baidu speech synthesis interface is an artificial intelligence technology that converts text into speech, providing developers with more application scenarios and innovative possibilities. This article will introduce how to use PHP language to connect to Baidu speech synthesis interface, and provide relevant code examples.

1. Apply for a Baidu developer account and obtain the API Key

Before you start, you need to have a Baidu developer account and create an application to obtain the API Key. The specific steps are as follows:

1. Enter Baidu AI open platform (https://ai.baidu.com/);
2. Register a Baidu account and log in;
3. Enter the management console;
4. Create a speech synthesis application;
5. Get the API Key and Secret Key.

2. Install PHP SDK

In order to easily call Baidu speech synthesis interface, we can use the PHP SDK provided by Baidu. Run the following command in the terminal to install the SDK:

composer require baidu-aip/php-sdk

After the installation is complete, we can introduce the SDK through the following code:

require_once 'path-to-sdk/AipSpeech.php';

3. Create an AipSpeech object

After using the SDK Before, we needed to create an AipSpeech object and pass in the API Key and Secret Key as parameters. The code example is as follows:

use AipSpeech;

$appId = 'your-app-id';
$apiKey = 'your-api-key';
$secretKey = 'your-secret-key';

$client = new AipSpeech($appId, $apiKey, $secretKey);

4. Call Baidu Speech Synthesis Interface

The following is an example of converting the text "Baidu Speech Synthesis Interface" into a voice file and saving it to a local directory.

$result = $client->synthesis('百度语音合成接口', 'zh', 1, [
    'vol' => 5,
    'spd' => 5,
    'pit' => 5,
    'per' => 4,
]);

if (!is_array($result)) {
    file_put_contents('path-to-save-file/output.mp3', $result);
}

In this example, we use the synthesis method to synthesize speech. The parameters are the text to be converted, language type, playback speed, and additional parameters. We save the results to a local file.

5. Other functions

In addition to speech synthesis, Baidu speech synthesis interface also provides other functions, such as:

1. Play speech online, calling method:$client->speak('Baidu speech synthesis interface', 'zh', 1, [...]);
2. Save the speech as an audio file, calling method: $client->asr('path-to-audio/audio.wav', 'wav', 16000, [...]).

6. Summary

This article introduces the basic steps of how to use PHP language to connect to Baidu speech synthesis interface, and provides relevant code examples. By calling the Baidu speech synthesis interface, we can easily convert text into speech and add more artificial intelligence functions to our applications. Hope this article is helpful to you.

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