java - 将 MFCC 值（梅尔频率倒谱系数）转换为 ascii 文件

Question

我有从 wav 文件中提取 MFCC 值的代码：

 public class MFCCTest {
    public static void main(String[] args) throws Exception {
    int sampleRate = 41000;
    int bufferSize = 512;
    int bufferOverlap = 128;
     final List<float[]>mfccList = new ArrayList<>(200);
    InputStream inStream = new FileInputStream("event10.wav");
   AudioDispatcher dispatcher = new AudioDispatcher(new UniversalAudioInputStream(inStream, new TarsosDSPAudioFormat(sampleRate, bufferSize, 1, true, true)), bufferSize, bufferOverlap);
    final MFCC mfcc = new MFCC(bufferSize, sampleRate, 20, 50, 300, 3000);
    dispatcher.addAudioProcessor(mfcc);
    dispatcher.addAudioProcessor(new AudioProcessor() {

        @Override
        public void processingFinished() {
        }

        @Override
        public boolean process(AudioEvent audioEvent) {
            mfccList.add( mfcc.getMFCC());
            return true;
        }
    });
    dispatcher.run();

    for (int loop = 0 ; loop < mfccList.size(); loop++) {
        System.out.println("outer ");
        for (int loop2 = 0 ; loop2 < mfccList.get(loop).length; loop2++) {
            System.out.println(loop2 + " " + mfccList.get(loop)[loop2]);
        }
    }


}
}

现在我需要对 MFCC 值执行动态时间规整以比较 wav 文件。

但是，此代码要求我比较两个 ascii 格式的文件：

public static void main(String[] args) {

    new DTW("pattern.ascii", "pattern.ascii")


}

我无法弄清楚如何转换浮点值数组的 MFCList：

      final List<float[]>mfccList = new ArrayList<>(200);

转换成 ascii 文件格式。

任何有关如何执行此操作的建议或建议将不胜感激。

标签： javaasciiasciidocmfccdtw