（Java）AudioInputStream打开WAV文件时出现的问题

Question

我正在使用JDK7并尝试运行wav文件-我尝试了以下测试，但复制了以下错误：

错误：

line with format ULAW 8000.0 Hz, 8 bit, mono, 1 bytes/frame,  not supported.

样例代码：

import javax.sound.sampled.*;

      try {
          Clip clip = AudioSystem.getClip();
          AudioInputStream inputStream = AudioSystem.getAudioInputStream(
                  new File("C://Users//xyz//Desktop//centerClosed.wav"));
          clip.open(inputStream);
          clip.start(); 
        } catch (Exception e) {
          System.err.println(e.getMessage());
        }

关于如何处理此案的任何想法？ 提前致谢

Answer 1

您的wav文件似乎是ULAW格式，以8kHz采样，该片段显然无法理解。

尝试像这样将音频转换为44.1kHz PCM：

import javax.sound.sampled.*;

try {
    Clip clip = AudioSystem.getClip();
    AudioInputStream ulawIn = AudioSystem.getAudioInputStream(
            new File("C://Users//xyz//Desktop//centerClosed.wav"));

    // define a target AudioFormat that is likely to be supported by your audio hardware,
    // i.e. 44.1kHz sampling rate and 16 bit samples.
    AudioInputStream pcmIn = AudioSystem.getAudioInputStream(
            new AudioFormat(AudioFormat.Encoding.PCM_SIGNED, 44100f, 16, 1, 2, 44100f, true)
            ulawIn);

    clip.open(pcmIn);
    clip.start(); 
} catch (Exception e) {
    System.err.println(e.getMessage());
}