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java 如何语音

2026-03-20 14:59:59Java

Java 语音识别与合成实现

语音识别（Speech-to-Text） 使用Java实现语音识别可以通过开源库或云服务API。CMU Sphinx是一个流行的开源选择，支持离线识别。添加Maven依赖：

<dependency>
    <groupId>edu.cmu.sphinx</groupId>
    <artifactId>sphinx4-core</artifactId>
    <version>5prealpha</version>
</dependency>

初始化识别器示例代码：

Configuration config = new Configuration();
config.setAcousticModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us");
config.setDictionaryPath("resource:/edu/cmu/sphinx/models/en-us/cmudict-en-us.dict");
config.setLanguageModelPath("resource:/edu/cmu/sphinx/models/en-us/en-us.lm.bin");
LiveSpeechRecognizer recognizer = new LiveSpeechRecognizer(config);
recognizer.startRecognition(true);
SpeechResult result;
while ((result = recognizer.getResult()) != null) {
    System.out.println("识别结果: " + result.getHypothesis());
}

语音合成（Text-to-Speech） Java内置的javax.speech包支持基础TTS功能。需要安装Java Speech API实现：

import javax.speech.*;
import javax.speech.synthesis.*;
Synthesizer synth = Central.createSynthesizer(null);
synth.allocate();
synth.resume();
synth.speakPlainText("Hello world", null);
synth.deallocate();

云服务集成 Google Cloud Speech-to-Text API需要添加客户端库：

<dependency>
    <groupId>com.google.cloud</groupId>
    <artifactId>google-cloud-speech</artifactId>
    <version>2.6.1</version>
</dependency>

API调用示例：

try (SpeechClient speechClient = SpeechClient.create()) {
    ByteString audioBytes = ByteString.readFrom(new FileInputStream("audio.wav"));
    RecognitionConfig config = RecognitionConfig.newBuilder()
        .setEncoding(RecognitionConfig.AudioEncoding.LINEAR16)
        .setLanguageCode("en-US")
        .build();
    RecognitionAudio audio = RecognitionAudio.newBuilder().setContent(audioBytes).build();
    RecognizeResponse response = speechClient.recognize(config, audio);
    for (SpeechRecognitionResult result : response.getResultsList()) {
        System.out.println("Transcript: " + result.getAlternatives(0).getTranscript());
    }
}

Android平台实现 Android原生API提供更直接的语音支持。识别示例：

Intent intent = new Intent(RecognizerIntent.ACTION_RECOGNIZE_SPEECH);
intent.putExtra(RecognizerIntent.EXTRA_LANGUAGE_MODEL, RecognizerIntent.LANGUAGE_MODEL_FREE_FORM);
startActivityForResult(intent, VOICE_REQUEST_CODE);

合成示例：

TextToSpeech tts = new TextToSpeech(context, status -> {
    if (status == TextToSpeech.SUCCESS) {
        tts.setLanguage(Locale.US);
        tts.speak("Hello Android", TextToSpeech.QUEUE_FLUSH, null, null);
    }
});

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java 如何语音