Acoustid without MusicBrainz

[Robert Kennedy Manoharan]

Hi Lukas,

I want to implement a application where I can have my own song database on a server. I understand that chromaprint can be used to lookup a song from the acoustid open source server. But how do I create a new fingerprint for a song so that it can be looked up later on using chromaprint? 

I can read from MusicBrainz website that the code for creating fingerprint for a new song is closed source. Does that mean for chromaprint to work we need MusicBrainz?

I have done quite a bit of reading on Acoustid and Musicbrainz but couldn't fully understand why we need two servers - Acoustid and MusicBrainz.

Can you guide me on the relation between the 2 servers?

Thanks,

Robert

[Robert Kennedy Manoharan]

I just now used fpcalc and can now see how chromaprint works. Basically when fpcalc is used with "-raw" option it creates a list of numbers. So ideally we have to create fpcalc(or other app which uses chromaprint) to create a fingerprint(which is the list of numbers) for the whole file. This needs to be stored in our acoustid server. 

Then we can use fpcalc to take a fingerprint of a small interval of the song. This can be sent to the acoustid server and compared with it. The server has something called as score which specifies the level of match. 

My question is how much of the score is good enough? (The higher the more exact the match?? Or the lower the better?)

Also, from my understanding MusicBrainz is just used for metadata about a song from it's database - like album, artist etc. Am I right?

[Lukáš Lalinský]

Hi Robert,

Yes, you are right that MusicBrainz is used only for metadata. The AcoustID server is tightly integrated with MusicBrainz, but if you are implementing your own fingerprint server to work with Chromaprint fingerprints, you don't need to use MusicBrainz at all.

If you mean the scores that AcoustID returns, then yes, the higher the better. 1.0 is the exact match, anything above 0.7 is generally pretty good.

Lukas

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[Robert Kennedy Manoharan]

Yes, I am implementing my own fingerprint server. I will download and install the code from https://bitbucket.org/acoustid/acoustid-server . I will also follow the instructions mentioned there. Upon installing, this server will work in the same way as http://api.acoustid.org .. am I right?

Thanks,

Robert

[Robert Kennedy Manoharan]

One more question.. I have made a submission to the acoustit server using --

 http://api.acoustid.org/v2/submit?client=8XaBELgH&user=YpJOzBmk&wait=5&duration=285&fingerprint=AQAAE1IkSYmUyMHH4zthHEf6ZdCRo-nxRgqmo_GRB7qYINw9NC-H4x8ACwSxYLjPlIISEgMDAQ

It gives this message -

{"status": "ok", "submissions": [{"status": "pending", "id": 70517594}]}

Then when i lookup after sometime using -

http://api.acoustid.org/v2/lookup?client=8XaBELgH&duration=285&fingerprint=AQAAE1IkSYmUyMHH4zthHEf6ZdCRo-nxRgqmo_GRB7qYINw9NC-H4x8ACwSxYLjPlIISEgMDAQ

It says -

{"status": "ok", "results": []}

I have tried it a couple of times but could not get it working.

Can someone help me?

Thanks,
Robert

[Lukáš Lalinský]

I'm sorry for not replying sooner. There are two problems:

1) The fingerprint couldn't be imported to the AcoustID database. There are some quality checks before importing a submitted fingerprint and this fingerprint does not have enough unique features to be successfully identified using the matching algorithm that AcoustID uses.

2) The submission status is incorrect. It reports that the submissions is still pending, but it was in fact rejected. I'll need to fix that.

Lukas

[Robert Kennedy Manoharan]

Hi Lukas,
What are the unique features does it require? I am just testing it now. Does it require album name, artist name etc?

Thanks,
Robert

[Lukáš Lalinský]

No, I meant audio features. I assume that the fingerprint is based on something less than 3 seconds of audio. That's not nearly enough for AcoustID.

Lukas

[hedi.ha...@gmail.com]

Hi.

I'm also getting the pending status on my local acoustid server {"status": "ok", "submissions": [{"status": "pending", "index": "0", "id": 26}]}
I'm sure that the problem is not coming from the min unique features as I changed the FINGERPRINT_MIN_UNIQUE_ITEMS constatnt in const.py
Can you tell me what other problem could generate this error ?

Thank a lot !!
Hedi

[Lukáš Lalinský]

Well, if you have a local AcoustID server, you are pretty much on your own, because there are many things that could be wrong and given that there are no instructions on how to configure the server, it's hard to tell your set up.

I'd start by enabling debug logs on the submission importer script, maybe you will see something where why the submission was rejected. Then I'd look at the submission table, what is the actual status there.

Lukas

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[hedi.ha...@gmail.com]

I figured out what is the problem. I haven't activted the script import_submissions.py :)
BTW, I would like to thank for the great great job you've done !!!

Hedi

[manuel.s...@gmail.com]

Hello,

 

I'm working on a project where i want to implement a lookup of songs by acoustic fingerprints. So i tried a cuple of songs as explaind on https://acoustid.org/webservice. But the lookup i always get is: {"status": "ok", "results": []}. Robert also had this problem before i think. What do I do wrong?

Maybe Robert can tell me the Problem, or someone other.

It would be very nice to get this running.

Sorry for my bad english...

 

Thanks a lot and best regards,

Manuel

 

 

[Manuel Sanz]

Hello again,

I figured out the problem now. Oh wonder, it was the IE. I have very long fingerprints and the IE isn't able to handle links with more than 2048 characters. At the moment I can't test it with other browsers, so I changed the request from GET to POST and now it's working very fine.

Great job done!!

Best regards,
Manuel

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[Alex López]

Hey Hedi!

Could you explain me how did you activate the script import_submission.py?

Thanks in advance,

Alex.