Android 如何使用TarsosDSP获得MFCC？

我到处都在搜索，但我不知道如何在Android上使用TarsosDSP提取MFCC特性。我知道如何从文件中提取FFT。 有什么帮助吗？

请参见官方网站

MFCC测试文件

public class MFCCTest {

//  private static int counter = 0;

    @Test
    public void MFCCForSineTest() throws UnsupportedAudioFileException{
        int sampleRate = 44100;
        int bufferSize = 1024;
        int bufferOverlap = 128;
        final float[] floatBuffer = TestUtilities.audioBufferSine();
        final AudioDispatcher dispatcher = AudioDispatcherFactory.fromFloatArray(floatBuffer, sampleRate, bufferSize, bufferOverlap);
        final MFCC mfcc = new MFCC(bufferSize, sampleRate, 40, 50, 300, 3000);
        dispatcher.addAudioProcessor(mfcc);
        dispatcher.addAudioProcessor(new AudioProcessor() {

            @Override
            public void processingFinished() {
            }

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

}

和TestUtilities audioBufferSine（）

公共类测试实用程序{
/**
*构造并返回一个两秒长的440Hz纯正弦缓冲区
*采样频率为44.1kHz。
* 
*@返回两秒长的纯正弦（440Hz）缓冲区，在
*44.1kHz。
*/
公共静态浮点[]audioBufferSine（）{
最终双采样器=44100.0；
最终双f0=440.0；
最终双振幅EF0=0.5；
最后两秒=4.0；
最终浮点数[]缓冲区=新浮点数[（整数）（秒*取样器）]；
for（int sample=0；sample

您可以在process事件下获得mfcc，我认为它适用于每一帧

    int sampleRate = 16000;
    int bufferSize = 512;
    int bufferOverlap = 128;
    new AndroidFFMPEGLocator(this);
    final List<float[]>mfccList = new ArrayList<>(200);
    InputStream inStream = new FileInputStream(audioFilePath);
   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();

int sampleRate=16000；
int bufferSize=512；
int-bufferOverlap=128；
新的AndroidFmPegLocator（本）；
最终列表MFCCLIST=新的ArrayList（200）；
InputStream inStream=新文件InputStream（音频文件路径）；
AudioDispatcher dispatcher=新的AudioDispatcher（新的UniversalAudioInputStream（流内，新的TarsosDSPAudioFormat（sampleRate，bufferSize，1，true，true）），bufferSize，bufferOverlap）；
最终MFCC MFCC=新的MFCC（缓冲区大小，取样器，20,50,300,3000）；
dispatcher.addAudioProcessor（mfcc）；
dispatcher.addAudioProcessor（新的AudioProcessor（）{
@凌驾
public void processingFinished（）{
}
@凌驾
公共布尔进程（AudioEvent AudioEvent）{
添加（mfcc.getMFCC（））；
返回true；
}
});
dispatcher.run（）；

    int sampleRate = 16000;
    int bufferSize = 512;
    int bufferOverlap = 128;
    new AndroidFFMPEGLocator(this);
    final List<float[]>mfccList = new ArrayList<>(200);
    InputStream inStream = new FileInputStream(audioFilePath);
   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();