java api for comparing MP3 contents?

Question

I am new to this and I don't know what to do? I want to compare two MP3 files and check whether they are same or different. I want to check it by its content. please help me. I searched everywhere but not getting anything.

Why does it necessarily need to be an mp3 API, couldn't you just compare the file sizes or would files be different sizes but contain the same song? — David, Mar 06 '13 at 10:08
Comparing audio files is like comparing images, hard. If a single thing changes, like if it is compressed with other setting, re-compressed, byte comparison will will fail. So the best way to do such a thing is to look for something that can do that, and look how you could integrate that into Java. See [wikipedia](http://en.wikipedia.org/wiki/Acoustic_fingerprint) for some introduction. — Johannes Kuhn, Mar 06 '13 at 10:12

AurA · Answer 1 · 2013-03-06T10:24:47.960

1

You can use Guava Libraries

Perform a crc32 checksum calculation

File myfile1 = new File("file1.mp3");
long checksum1 = Files.getChecksum(myfile1 , new java.util.zip.CRC32());

File myfile2 = new File("file2.mp3");
long checksum2 = Files.getChecksum(myfile2 , new java.util.zip.CRC32());

if (checksum1 == checksum2)    {
    System.out.println(" Both are same ");
    // your business logic
}

In case you are not satisfied with checksum and want to do a sha-256 digest calculation

byte[] digest = Files.getDigest(myfile1 , MessageDigest.getInstance("SHA-256"));

edited Mar 06 '13 at 10:24

answered Mar 06 '13 at 10:11

AurA

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Or calculate the checksum without an additional lib: http://stackoverflow.com/a/304350/1165132 – Adrian Mar 06 '13 at 10:13
Original poster clarifies that "i want to check whether they contain same song or not" not if the files are identical, which is what this will do. – Bjorn Roche Mar 06 '13 at 15:17
Why not simply compare the files byte-by-byte? They have to be read from disk anyway, so why do all the extra math? – Bjorn Roche Mar 06 '13 at 15:18

score 0 · Answer 2 · edited May 23 '17 at 10:25

You say "I searched everywhere but not getting anything." If this is true, then you searched for the wrong thing. I just went to google and typed "stack overflow check if two songs are the same" and got these two answers to your question:

Is it possible to see if two MP3 files are the same song by analyzing the files' bytes?

Java: Comparing two audio files to see if they are the same "music"

You might also look into the echonest API and echoprint.

java api for comparing MP3 contents?

2 Answers2