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missing .wav metadata

Discussion in 'TRAKTOR PRO / TRAKTOR SCRATCH PRO' started by mrkeeny, May 10, 2012.

  1. mrkeeny

    mrkeeny NI Product Owner

    Messages:
    26
    Hello everyone, this is my first ever post. My question is as follows:

    My collection consists of several thousand .wav files.
    According to the Traktor bible, Traktor ‘should’ write certain metadata into RIFF chunks. E.g. ‘artist’, ‘release’ and ‘title’, ‘comment’.

    However, when I look at my files with a RIFF viewer, it is clear that neither Tracktor, nor ‘Trainspotter’ is writing to the .wav files. EVERYTHING is stored within the collection.nml. *Have ruled out permissions.

    Therefore, if I remove tracks from my collection and re-add them, all metadata is missing.
    Likewise when I copy the .wav files to my laptop and import into a separate Traktor instance, all metadata missing.

    Its not a huge issue as such, but I just hate to think that I will have to start again from scratch if anything goes wrong.
    It would be good to have at least the bare essential metadata stored within the files.

    Does anybody else have this problem?
     
  2. malzfreund

    malzfreund NI Product Owner

    Messages:
    2,495
    Traktor is definitely writing something to the WAV files. I just imported a WAV into Traktor, tagged it from inside Traktor, and saw the file size of the WAV file increasing. I didn't have any other application open that could have modified the file so it must clearly have been Traktor.

    no. i don't use WAV. i recommend you switch to FLAC as well. see my other post from earlier today on the issue.
     
  3. mrkeeny

    mrkeeny NI Product Owner

    Messages:
    26
    Thank you for your reply.

    Traktor does write to the WAV files, but this seems to be only the proprietary data, not regular metadata like 'artist' / 'release'.

    I have considered using FLAC but ideally i'd like to get WAV working as the conversion process adds another layer of complexity to my workflow.

    I don't really have any requirement for FLAC (unless it is to rid myself of issues that apparently nobody else is experiencing) :(
     
  4. mrkeeny

    mrkeeny NI Product Owner

    Messages:
    26
    These are the only tags i get:
    tags.jpg
     
  5. LarsStudio

    LarsStudio NI Product Owner

    Messages:
    260


    The only thing that will stay are changes made to the name field - sometimes (in a quite erratic and random manner), even when you choose to remove Traktor tags when deleting files from the collection. I would actually prefer if they didn't write anything at all to the files themselves. So make sure to always have your Traktor collection backed up.



    If you only delete tracks (without checking 'remove traktor tags') from you collection and later reimport them, all your tags will still be there.
     
  6. mrkeeny

    mrkeeny NI Product Owner

    Messages:
    26
    Thanks for the reply. WAVs do seem to behave in an 'erratic and random manner', this is most undesirable!

    Even when i remove from collection without checking remove tags, i lose ALL release metadata. When i add back to collection, all i get is the title.

    Either I keep ALL of my files in my collection and never remove them, or its Looking like I may have to go FLAC. royal pain to retag everything again tho!
     
  7. LarsStudio

    LarsStudio NI Product Owner

    Messages:
    260


    Nah, that shouldn't happen, since that info is in the collection file. And I use wav files almost exclusively. Try a consistency check.
     
  8. rainerh

    rainerh Well-Known Member

    Messages:
    2,465
    In your screenshot you can see the tag NITR. This is the proprietary Traktor tag I mention on page 183 (and which can be seen in the screenshot of the command line tool I used as well).

    I made q quick check again and edited the tags in Traktor. The results can be seen in the attached screenshots.

    Traktor writes the info about some tags twice: once in the NITR tag (true for all data that can be edited in Traktor), see pic no 1

    And a second time for the few standard RIFF info chunks (as shown in the table on page 185), see pic no 2 and 3

    If you don't see the tags something else must be going wrong.
     

    Attached Files:

  9. mrkeeny

    mrkeeny NI Product Owner

    Messages:
    26
    Thank you Rainer,

    I have just been doing some further testing and found that when i re-edit the metadata from within Traktor and then check the RIFF info, the meta data is now written. (and its persistent).

    Therefore, the problem must be with the tagging software I use 'Trainspotter'. By default it is 'supposed' to write to both the Traktor collection and the .wav file, but obviously not doing so.

    Looks like I will have to log this in the Trainspotter forum, unless anyone else has had similar problem? Thank you all for time in responding.