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java如何语音播报

2026-03-18 00:40:41Java

使用 Java 实现语音播报的方法

Java 可以通过调用本地或第三方库实现语音播报功能。以下是几种常见的实现方式：

使用 javax.speech 库

javax.speech 是 Java 提供的语音合成 API，需要安装 Java Speech API 实现库（如 FreeTTS）。

java如何语音播报

import javax.speech.*;
import javax.speech.synthesis.*;

public class TextToSpeech {
    public static void main(String[] args) {
        try {
            Synthesizer synth = Central.createSynthesizer(null);
            synth.allocate();
            synth.resume();
            synth.speakPlainText("Hello, this is a text to speech example", null);
            synth.waitEngineState(Synthesizer.QUEUE_EMPTY);
            synth.deallocate();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

使用 FreeTTS 库

FreeTTS 是一个开源的语音合成系统，可以作为 javax.speech 的实现。

java如何语音播报

import com.sun.speech.freetts.Voice;
import com.sun.speech.freetts.VoiceManager;

public class FreeTTSExample {
    public static void main(String[] args) {
        VoiceManager voiceManager = VoiceManager.getInstance();
        Voice voice = voiceManager.getVoice("kevin16");
        voice.allocate();
        voice.speak("This is an example of FreeTTS text to speech.");
        voice.deallocate();
    }
}

使用 Microsoft Speech API (SAPI)

通过 JNI 或 JNA 调用 Windows 的 SAPI 实现语音播报。

import com.sun.jna.Native;
import com.sun.jna.platform.win32.Ole32;
import com.sun.jna.platform.win32.COM.COMException;
import com.sun.jna.platform.win32.COM.Dispatch;
import com.sun.jna.platform.win32.Variant.VARIANT;

public class SAPIExample {
    public static void main(String[] args) {
        Ole32.INSTANCE.CoInitialize(null);
        Dispatch spVoice = new Dispatch("{96749377-3391-11D2-9EE3-00C04F797396}");
        VARIANT text = new VARIANT("Hello from Microsoft Speech API");
        spVoice.invoke("Speak", text);
        Ole32.INSTANCE.CoUninitialize();
    }
}

使用 Google Text-to-Speech API

通过调用 Google Cloud 的 Text-to-Speech API 实现。

import com.google.cloud.texttospeech.v1.*;
import com.google.protobuf.ByteString;
import java.io.FileOutputStream;

public class GoogleTTS {
    public static void main(String[] args) throws Exception {
        try (TextToSpeechClient textToSpeechClient = TextToSpeechClient.create()) {
            SynthesisInput input = SynthesisInput.newBuilder()
                .setText("Hello, this is Google Cloud Text-to-Speech")
                .build();

            VoiceSelectionParams voice = VoiceSelectionParams.newBuilder()
                .setLanguageCode("en-US")
                .setSsmlGender(SsmlVoiceGender.NEUTRAL)
                .build();

            AudioConfig audioConfig = AudioConfig.newBuilder()
                .setAudioEncoding(AudioEncoding.MP3)
                .build();

            SynthesizeSpeechResponse response = textToSpeechClient.synthesizeSpeech(input, voice, audioConfig);
            ByteString audioContents = response.getAudioContent();

            try (FileOutputStream out = new FileOutputStream("output.mp3")) {
                out.write(audioContents.toByteArray());
            }
        }
    }
}