java怎么实现语音播报

在Java中实现语音播报，可以使用Java的内置库或者第三方库。这里我将介绍两种方法：使用Java自带的javax.sound.sampled库和使用开源库JSyn。

方法1：使用Java自带的javax.sound.sampled库

import javax.sound.sampled.*;
    
import java.io.File;
    
import java.io.IOException;


public class TextToSpeech {

    public static void main(String[] args) {
    
        String text = "你好，这是一个语音播报示例。";
    
        int bufferSize = 4096;
    
        boolean isPlaying = true;


        try {
    
            File audioFile = new File("output.wav");
    
            playText(text, audioFile, bufferSize);

        }
 catch (UnsupportedAudioFileException | IOException | LineUnavailableException e) {
    
            e.printStackTrace();

        }

    }


    public static void playText(String text, File audioFile, int bufferSize) throws UnsupportedAudioFileException, IOException, LineUnavailableException {
    
        AudioFormat format = new AudioFormat(16000, 16, 2, true, true);
    
        DataLine.Info info = new DataLine.Info(Clip.class, format);
    
        Clip clip = (Clip) AudioSystem.getLine(info);
    
        clip.open(null);
    

        byte[] buffer = new byte[bufferSize];
    
        TextToSpeech tts = new TextToSpeech(Locale.CHINA);
    
        tts.setVoiceName("Narrator");
    
        tts.speak(text, TextToSpeech.QUEUE_FLUSH, null);
    

        Thread speakerThread = new Thread(() ->
 {

            try {

                while (isPlaying) {
    
                    int bytesRead = clip.read(buffer, 0, buffer.length);
    
                    if (bytesRead >
 0) {
    
                        AudioInputStream audioStream = new AudioInputStream(new ByteArrayInputStream(buffer, 0, bytesRead));
    
                        AudioSystem.write(audioStream, AudioFileFormat.Type.WAVE, audioFile);

                    }
 else {
    
                        break;

                    }

                }

            }
 catch (IOException e) {
    
                e.printStackTrace();

            }
 finally {
    
                clip.close();

            }

        }
    );
    

        speakerThread.start();

    }

}
    

方法2：使用开源库JSyn

首先，你需要下载并添加JSyn库到你的项目中。你可以从这里下载它：https://www.softsynth.com/jsyn/

然后，你可以使用以下代码实现语音播报：

import com.softsynth.jsyn.*;
    
import com.softsynth.util.DialogUtils;


public class TextToSpeech {

    public static void main(String[] args) {
    
        String text = "你好，这是一个语音播报示例。";
    
        String language = "zh";


        try {
    
            speakText(text, language);

        }
 catch (Exception e) {
    
            DialogUtils.showErrorDialog("错误", e.getMessage());

        }

    }


    public static void speakText(String text, String language) throws SynthesizerException {
    
        Synthesizer synthesizer = JSyn.createSynthesizer();
    
        synthesizer.open();
    

        Voice voice = synthesizer.createVoice(language);

        if (voice == null) {
    
            throw new SynthesizerException("无法找到指定的语音");

        }
    

        voice.allocate();
    
        voice.setRate(voice.getSampleRate() / 10);
     // 设置语速
        voice.setPitch(100);
     // 设置音高

        byte[] buffer = new byte[1024];
    
        int bytesRead;
    
        while ((bytesRead = synthesizer.read(buffer, 0, buffer.length)) >
 0) {
    
            synthesizer.write(buffer, 0, bytesRead);

        }
    

        synthesizer.close();

    }

}
    

这两种方法都可以实现Java中的语音播报功能。你可以根据自己的需求选择合适的方法。

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