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我正在尝试将 AWS Polly 用于我的简单 JAVA 控制台应用程序的文本到语音功能。我从 AWS 获得结果，但是一旦我尝试使用 AudioStreamPlayer 播放它（可以在这里找到课程：http: //blog.conygre.com/2016/12/06/at-the-third-stroke-the-time-will -be-spoken-by-aws-polly/）我收到一个错误。

似乎我从 AWS 获得的结果格式是 MPEG，而不是要求的 MP3。

我的代码：

    BasicAWSCredentials awsCreds = new BasicAWSCredentials(key, secret);
    System.out.println(System.getenv("AWS_REGION"));
    AmazonPollyClient apClient = (AmazonPollyClient) AmazonPollyClientBuilder.standard()
    .withCredentials(new AWSStaticCredentialsProvider(awsCreds))
    .build();
    SynthesizeSpeechRequest tssRequest = new SynthesizeSpeechRequest();
    tssRequest.setText("Hello World");
    tssRequest.setVoiceId("Ruben");
    tssRequest.setOutputFormat(OutputFormat.Mp3);
    SynthesizeSpeechResult tssResult = apClient.synthesizeSpeech(tssRequest);
    System.out.println(tssResult.getContentType());
    InputStream in = tssResult.getAudioStream();
    BufferedInputStream bin = new BufferedInputStream(in);
    AudioStreamPlayer player = new AudioStreamPlayer(); 
            player.play(bin);

控制台输出：

eu-west-1
audio/mpeg
Exception in thread "main" java.lang.IllegalStateException: javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input stream
    at AudioStreamPlayer.play(AudioStreamPlayer.java:35)
    at PollyTest.main(PollyTest.java:31)
Caused by: javax.sound.sampled.UnsupportedAudioFileException: could not get audio input stream from input stream
    at javax.sound.sampled.AudioSystem.getAudioInputStream(AudioSystem.java:1121)
    at AudioStreamPlayer.play(AudioStreamPlayer.java:16)
    ... 1 more
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