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PerfectTunes AR results affected by metadata ???

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  • FrancescoT
    replied
    Good to know. Apparently also total no. of tracks, even if one enables one-to-one match of album and folder. It definitely isn't as obvious as you seem to imply. Maybe it should be documented. Thanks anyway.

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  • Spoon
    replied
    There are 3 tags which have to be correct to later lookup the disc in PerfectTUNES: AccurateRip

    Album Artist
    Album
    Track Number

    if any are incorrect (album artist and artist have to match across tracks, not match the real name of the disc), then that disc cannot be looked up, it is not a case of trying to code the million possibilities someone could have, your tracks are either as they came off CD or they are not, if you change around track number / count then there is no lookup (a 20 track CD has 1.048576e+26 possible combinations of the tracks, so we are not going to try all the combination and ignore track number).

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  • FrancescoT
    replied
    You may find it incredible, but it's all documented here. It is true that - while appreciating the software for the reasons you explained - I have raised some issues with the design and documentation of the programs, some of which have in fact been corrected. I have a first class classical music collection of original very successful and impeccably mastered CD releases (over 2k of them), first class hardware with no problems whatsoever, and four decades of experience in academic software development.

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  • GBrown
    replied
    There are over half a million independent user submissions and almost 5k drives documented for AccurateRip over a very long period of time. In the 20+ years I have been ripping my CD collection of over 2k discs I have had only a few rare occasions where the metadata wasn't found, but many where AccurateRip found errors in the rip results. No other software provides that kind of feedback. Almost all others blindly rip a disc and store whatever potentially bad results for you to later discover clicks, noise, or blanks spots.

    The advantage here is that dBPoweramp at least provides some form of reporting so that you can go back to your rip and confirm if there in fact anything that needs to be fixed. Remember a single bad unrecoverable frame is reported but likely would never be heard during listening.

    I find it incredible that in such a short period of time you have had as many issues as has been documented here. Either you have hardware problems that are causing this, or you have a collection of the world's most notorious poorly mastered CDs. Half a million other users are not experiencing the same problem.

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  • FrancescoT
    replied
    Ok thanks. So PT is even fooled by such mistakes. Hard to believe that this should be the intended behaviour.

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  • Spoon
    replied
    "track : 1/17"

    That is the issue, it is a 16 track disc, yet the tags have 17

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  • FrancescoT
    replied
    Can somebody please explain the following finding: I have an old rip of album Deutsche Grammophon 4777978, where all tracks (according to the "AccurateRipResult" tag) were ripped accurately (confidence 200). PerfectTunes reports this rip as "Incomplete" . If I now rip again this CD, all tracks are ripped accurately, the files have identical md5 hash as the old ones, and the DiscID is (of course) the same, but this time PerfectTunes says the album was ripped accurately. In enclose logs of old and new rips.
    Attached Files

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  • PeterP
    replied
    Updated Mac dBpoweramp with the fix included:

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  • Spoon
    replied
    It is not on the macOS version yet, sorry, next update and it will be.

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  • FrancescoT
    replied
    Downloaded latest update of dBp (2024-05-01), which in the release notes says: "Bug Fix: CD Ripper: if a track required re-ripping of bad frames, then AccurateRip cross checking of pressings for that one track would fail"
    Must report that the rip of Hyperion CDA66468 still shows exactly the same issue as before: dBp reports last track as secure but inaccurate, while PerfectTunes reports the whole rip as accurate. Rip files are identical to those already uploaded in my post n.59 Why does the text not fit on the buttons?

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  • FrancescoT
    replied
    Originally posted by simbun
    I agree that there's some value in having an option that defines one DISC per folder, but if you also want to have multiple discs per folder "(of course, a folder may contain more than one whole rip)" then it needs to start using the metadata.
    Yes you're right. As I said, I'm keeping one rip per folder, anyway, and that's what I was focused on.

    Originally posted by simbun
    I don't know much about classical tagging, but are you using the ALBUM tag for what would normally be stored in WORK?
    No, not necessarily. Work is meant to be the name of an opus, a self contained piece of music often comprising more "movements" (tracks). An album is a larger collection, indeed often coinciding with one or more CDs (no problem there), but useful for splitting CDs when an opus spans more CDs and/or they also contain other works possibly by different composers and/or performers. Multi-CD releases (boxed sets) containing a packed collection of (often previously released individually) performances by one or more artists are a case in point.

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  • FrancescoT
    replied
    Originally posted by simbun
    If you have album, discnumber and tracknumber correctly tagged, it appears that PerfectTunes does a good job in identifying individual discs and verifying them with AccurateRip, even across folders if 'Album Matching Grouped by Folder' is disabled.


    Even with 'Album Matching Grouped by Folder' enabled, it looks like PerfectTunes still groups by the album tag, so if you've split a disc into multiple albums then it'll fail. It seems this option just stops PerfectTunes from attempting to merge across folders to make complete discs (whether that's by design I don't know).
    In my view, it would make sense that the program looks at the album and track# tags across folders if the 'Album Matching Grouped by Folder' option is off, because this is of help to the user, who may not wish to match rips to folders. (But NOTE: it should say so in the doc, because it implies a constraint on the metadata.). But it's definitely NOT OK that it still groups by album tag if that option is on. That should mean instead that the user is free to choose whatever metadata they like (even none at all) as long as they take care of not splitting rips across folders (of course, a folder may contain more than one whole rip).

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  • FrancescoT
    replied
    Here's a link to an example: https://drive.google.com/file/d/1Ze3...usp=share_link

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  • FrancescoT
    replied
    Originally posted by Spoon
    Either all and only all the tracks of the disc have to be in the same folder, or the album name has to be identical.
    That's what I wrote: I have all tracks of a physical CD in the same folder -- and only those.

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  • Spoon
    replied
    Either all and only all the tracks of the disc have to be in the same folder, or the album name has to be identical.

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