Re: AcoustID

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On Wed, May 13, 2015 at 12:29:40PM +0200, Andre Wiethoff wrote:
> Hello Tom,
>
> > > Something completely different: It seems that some audio fingerprints
> > > are misdetected (meaning that one fingerprint has a bunch of results
> > > with high score, but not all of the correct recording). I tested a live
> > > version, but it found also the regular version and one even a cover from
> > > a different group - I assume that either an algorithm has wrongly
> > > assigned the songs metadata to the recording or a user has entered wrong
> > > artist information)...
> > >
> >
> > Yes, this is very common and my understanding is this is usually
> > incorrectly submitted  data. Various software submits acoustids so
> > depending on how it's set up and what the user selects or what their
> > existing data is, incorrect acoustids can end up attached. Although
> > I'd say if there's been a lot of submissions the right recording tends
> > to have many more.
> > Having said which...
> > Sometimes two (or more) recordings will have one acoustid. These are
> > usually really similar mixes. Vice versa one recording can have
> > multiple acoustids because for example the speed has changed between
> > released versions or one is truncated in a way we consider to be
> > insufficient to treat as two different recordings.
> >
> Thank you for the detailed explanation! I thought that it might be that
> way...
>
> If I understood correctly, the AcoustIDs itself are stored on
> Acoustid.org server externally.
> Are there any references from Musicbrainz tables (e.g. a GUID) to the
> data on Acoustid.org, or are they link all from AcoustID.org back to
> Musicbrainz (so that the AcoustId.org API need to be called in order to
> display which fingerprints are assigned to a recording for display on
> the Musicbrainz webpage)? I didn't found any reference for it in the
> CreateTables.sql script...
>

All AcoustID data is stored on the AcoustID side. We've considered
setting up a system to move a view of that data back to MB as well, but
primarily so we can write reports based on that information and display
it without needing to make a request to remove webservice. At present
it's all displayed by way of a request made in javascript to the
AcoustID API, however.

> Thanks in forward for your answer!
>
> Best regards,
>
> Andre
>
> _______________________________________________
> MusicBrainz-devel mailing list
> [email protected]
> http://lists.musicbrainz.org/mailman/listinfo/musicbrainz-devel

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