How to integrate and use the speech synthesis function of Baidu AI interface in a Java project

How to integrate and use the speech synthesis function of Baidu AI interface in a Java project

Introduction:
Baidu AI open platform provides rich artificial intelligence capabilities. Including speech synthesis, etc. This article will introduce how to integrate and use the speech synthesis function of Baidu AI interface in a Java project.

Steps:

1. Register a Baidu AI Open Platform account and create an application
   First, we need to register an account on the Baidu AI Open Platform and create an application. Log in to the Baidu AI open platform, create an application, and obtain the application's App ID, API Key, and Secret Key.
2. Introduce the Java SDK of Baidu AI open platform
   Download and introduce the Java SDK of Baidu AI open platform. Add the following dependencies to the project's pom.xml file:

<dependency>
    <groupId>com.baidu.aip</groupId>
    <artifactId>java-sdk</artifactId>
    <version>4.15.2</version>
</dependency>

3. Initialize the speech synthesis client
   Introduce the speech synthesis related classes of Baidu AI open platform into the code and initialize it Speech synthesis client, the code example is as follows:

import com.baidu.aip.client.DefaultAipSpeechClient;
import com.baidu.aip.speech.AipSpeech;

public class SpeechSynthesisDemo {

    // 设置APPID/AK/SK
    public static final String APP_ID = "your App ID";
    public static final String API_KEY = "your API Key";
    public static final String SECRET_KEY = "your Secret Key";

    public static void main(String[] args) {
        // 初始化一个AipSpeech
        AipSpeech client = new AipSpeech(APP_ID, API_KEY, SECRET_KEY);

        // 可选：设置网络连接参数
        client.setConnectionTimeoutInMillis(2000);
        client.setSocketTimeoutInMillis(60000);

        // 选择本地文件
        String filePath = "test.pcm";
        TtsResponse res = client.synthesis("你好百度", "zh", 1, null);
        byte[] data = res.getData();
        JSONObject result = res.getResult();
        if (data != null) {
            try {
                Util.writeBytesToFileSystem(data, filePath);
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        if (result != null) {
            System.out.println(result.toString(2));
        }
    }
}

In the above code, you need to replace APP_ID, API_KEY and SECRET_KEY with the relevant information of your own application. You can also adjust speech synthesis parameters such as language, speaking speed, etc. as needed.

4. Calling the speech synthesis function
   Use the client object of speech synthesis to call the synthesis method to perform speech synthesis. Pass in the text, language, speech speed and other parameters to be synthesized, and the synthesized speech data will be returned, which can be saved as a pcm file. The code example is as follows:

String filePath = "test.pcm";
TtsResponse res = client.synthesis("你好百度", "zh", 1, null);
byte[] data = res.getData();
JSONObject result = res.getResult();
if (data != null) {
    try {
        Util.writeBytesToFileSystem(data, filePath);
    } catch (IOException e) {
        e.printStackTrace();
    }
}
if (result != null) {
    System.out.println(result.toString(2));
}

Replace the text to be synthesized with the content you need, and filePath is the path to save the voice file.

Summary:
Through the above steps, we can integrate and use the speech synthesis function of Baidu AI interface in the Java project. You can adjust the parameters of speech synthesis according to actual needs, and save the synthesized speech as a file in pcm format to implement your own speech synthesis application.

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