CODEWITHSUNDEEP
javafingerprintmusicg
marina
marina

Reputation: 1680

Java compare two audio files with fingerprint

I want find out, if two audio files are same or one contains the other.

For this I use Fingerprint of musicg 

byte[] firstAudio = readAudioFileData("first.mp3");
byte[] secondAudio = readAudioFileData("second.mp3");

FingerprintSimilarityComputer fingerprint = 
            new FingerprintSimilarityComputer(firstAudio, secondAudio);

FingerprintSimilarity fingerprintSimilarity = fingerprint.getFingerprintsSimilarity();

System.out.println("clip is found at " + fingerprintSimilarity.getScore());

to convert audio to byte array I use sound API

public static byte[] readAudioFileData(final String filePath) {
    byte[] data = null;
    try {
        final ByteArrayOutputStream baout = new ByteArrayOutputStream();
        final File file = new File(filePath);
        final AudioInputStream audioInputStream = AudioSystem.getAudioInputStream(file);

        byte[] buffer = new byte[4096];
        int c;
        while ((c = audioInputStream.read(buffer, 0, buffer.length)) != -1) {
            baout.write(buffer, 0, c);
        }
        audioInputStream.close();
        baout.close();
        data = baout.toByteArray();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return data;
}

but when I execute it, I became at fingerprint.getFingerprintsSimilarity() an Exception.

Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 15999
at com.musicg.fingerprint.PairManager.getPairPositionList(PairManager.java:133)
at com.musicg.fingerprint.PairManager.getPair_PositionList_Table(PairManager.java:80)
at com.musicg.fingerprint.FingerprintSimilarityComputer.getFingerprintsSimilarity(FingerprintSimilarityComputer.java:71)
at Main.main(Main.java:42)

How can I compare 2 mp3 files with fingerprint in Java?

Upvotes: 5

Views: 6338

Answers (3)

Torge
Torge

Reputation: 2284

Maybe I am missing a point, but if I understood you right, this should do:

byte[] firstAudio = readAudioFileData("first.mp3");
byte[] secondAudio = readAudioFileData("second.mp3");

byte[] smaller = firstAudio.length <= secondAudio.length ? firstAudio : secondAudio;
byte[] bigger = firstAudio.length > secondAudio.length ? firstAudio : secondAudio;

int ixS = 0;
int ixB = 0;

boolean contains = false;

for (; ixB<bigger.length; ixB++) {
    
    if (smaller[ixS] == bigger[ixB]) {
        ixS++;
        if (ixS == smaller.length) {
            contains = true;
            break;
        }
    }
    else {
        ixS = 0;
    }
}

if (contains) {
    if (smaller.length == bigger.length) {
        System.out.println("Both tracks are equal");
    }
    else {
        System.out.println("The bigger track, fully contains the smaller track starting at byte: "+(ixB-smaller.lenght));
    }
}
else {
    System.out.println("No track completely contains the other track");
}

Upvotes: 0

kriegaex
kriegaex

Reputation: 67487

I never did any audio stuff in Java before, but I looked into your code briefly. I think that musicg only works for WAV files, not for MP3. Thus, you need to convert the files first. A web search reveals that you can e.g. use JLayer for that purpose. The corresponding code looks like this:

package de.scrum_master.so;

import com.musicg.fingerprint.FingerprintManager;
import com.musicg.fingerprint.FingerprintSimilarity;
import com.musicg.fingerprint.FingerprintSimilarityComputer;
import com.musicg.wave.Wave;
import javazoom.jl.converter.Converter;
import javazoom.jl.decoder.JavaLayerException;

public class Application {
  public static void main(String[] args) throws JavaLayerException {
    // MP3 to WAV
    new Converter().convert("White Wedding.mp3", "White Wedding.wav");
    new Converter().convert("Poison.mp3", "Poison.wav");
    // Fingerprint from WAV
    byte[] firstFingerPrint = new FingerprintManager().extractFingerprint(new Wave("White Wedding.wav"));
    byte[] secondFingerPrint = new FingerprintManager().extractFingerprint(new Wave("Poison.wav"));
    // Compare fingerprints
    FingerprintSimilarity fingerprintSimilarity = new FingerprintSimilarityComputer(firstFingerPrint, secondFingerPrint).getFingerprintsSimilarity();
    System.out.println("Similarity score = " + fingerprintSimilarity.getScore());
  }
}

Of course you should make sure that you do not convert each file again whenever the program starts, i.e. you should check if the WAV files already exist. I skipped this step and reduced the sample code to a minimal working version.

Upvotes: 2

user1878676
user1878676

Reputation: 1

For FingerprintSimilarityComputer(input1, input2), it suppose to take in the fingerprint of the loaded audio data and not the loaded audio data itself.

In your case, it should be:

// Convert your audio to wav using FFMpeg

Wave w1 = new Wave("first.wav");
Wave w2 = new Wave("second.wav");

FingerprintSimilarityComputer fingerprint = 
        new FingerprintSimilarityComputer(w1.getFingerprint(), w2.getFingerprint());

// print fingerprint.getFingerprintSimilarity()

Upvotes: 0

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