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Why does conversion from WAV to AIFF change ID3 tag
I converted some files from WAV to AIFF and I was surprised that the ID3 tag had changed, I assumed it would be left alone seeing as both formats support it.
Changes are:
- The UFID frame has not been transferred
- The IPLS frame has not been transferred
- All fields are stored as UTF16 instead of Ansi, even though all values are encodable as Ansi
- The value of the TMED field has changed from CD to CD >> CD (Lossless) [WAV]
- Has added a TXXX:Commissioned field that is set to the Record label
- Has added aaar field set to artist name
- Converted multi value Composer and Conductor fields to a single value separated by '/'
So:
- Is there a way to convert the file and leave the ID3 tag alone ?
- What options are actually being used as I cant see any options for conversion to AIFF ?
Last edited by paultaylor; 11-01-2016 at 03:02 AM.
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Re: Why does conversion from WAV to AIFF change ID3 tag
There is no way to specify the tag is not touched, sorry.
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Re: Why does conversion from WAV to AIFF change ID3 tag
- and theres no way to stop fields getting lost when it is rewritten either ?
- what option can I use to stop it writing as unicode16
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Re: Why does conversion from WAV to AIFF change ID3 tag
If there are unsupported fields then they will not be read or preserved.
UTF16 is always written to AIFF, we believe this is the standard which apple created and have always followed.
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Re: Why does conversion from WAV to AIFF change ID3 tag
Is there a list of what fields DbPowermap does support ?
There are certainly no issues with iTunes using ID3 with ansi values with AIFF, AIFF properly supports ID3v23 (and ID3v22 and ID3v24) not a subset version of ID3 so I can see see no reason to force use of Unicode16
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Re: Why does conversion from WAV to AIFF change ID3 tag
We write AIFF files exactly as iTunes does.
I do not have a list of the fields at hand, however if we are missing fields, they can be added in future versions.
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Re: Why does conversion from WAV to AIFF change ID3 tag
What I would most like to see is a ay to leave teh ID3 tag alone when converting form one format that supports ID3 to another.
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Re: Why does conversion from WAV to AIFF change ID3 tag
ID3 tags are not independ from the music codec and file format.
Dat Ei
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Re: Why does conversion from WAV to AIFF change ID3 tag
ID3 tags are completely unaware of their surroundings, so if a format supports ID3 then an ID3 tag can be added into the file from somewhere. MP3, WAV, AIF and DSF all support ID3 so it would make alot of sense to just take the ID3 tag as is rather than recreating it and losing lots of information as currently happens. Actually I could quite easily write a command line app to extract a tag from a file, and then another to add a tag into a file replacing what is currently there but I don't quite understand if there is way to plug into a dbpoweramp workflow
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