I have Audacity v3.1.3 and exivtool v12.42 in Fedora 36 fully updated. After I export an MP3 with Audacity, exiftool shows errors in the metadata, and does not show the information I entered in Audacity. The error is:
Warning : Invalid ID3 frame size
None of the tags I entered with Audacity is shown. hexdump -C shows that the information is inside the mp3 in the first chunk, and I can read the metadata with mutagen mid3v2. For example, the attached mp3 gives me this:
IDv2taginfoforuru_SitioVirtuoso-220904-GN10_102035_db13.mp3COMM===GPS=(-22.336367,-42.4136); Gain in DB = +13 COMM==XXX=GPS=(-22.336367,-42.4136); Gain in DB = +13 TDRC=2022-09-04TPE1=uru-Spot-wingedWood-Quail(Odontophoruscapueira)TXXX=Software=AVEFieldGuide-https://luis.impa.br/aveTYER=2022-09-04
I would like to know where the error is.
I am attaching the mp3 with problems, but most of the exported mp3 show this (but not all!)
Yes, I found that discussion, but it is incomplete and I could not extract any solution from it.
The fact that mid3v2 can extract the data is interesting.
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It looks like I dropped the ball on this one. The problem indeed seems to be with ExifTool -- as far as I can tell it isn't handling the extended header properly. I'll fix this in ExifTool 12.46. Thanks for bringing this to my attention, and for the sample.
Last edit: Phil Harvey 2022-10-01
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I have Audacity v3.1.3 and exivtool v12.42 in Fedora 36 fully updated. After I export an MP3 with Audacity, exiftool shows errors in the metadata, and does not show the information I entered in Audacity. The error is:
None of the tags I entered with Audacity is shown. hexdump -C shows that the information is inside the mp3 in the first chunk, and I can read the metadata with mutagen mid3v2. For example, the attached mp3 gives me this:
I would like to know where the error is.
I am attaching the mp3 with problems, but most of the exported mp3 show this (but not all!)
Last edit: Luis Florit 2022-09-30
This has popped up before. It seemed to have gone away with Audacity 3.02, but I guess it's back.
Phil has previously expressed… dislike… of the ID3 standard and problems with writing it.
Yes, I found that discussion, but it is incomplete and I could not extract any solution from it.
The fact that mid3v2 can extract the data is interesting.
It looks like I dropped the ball on this one. The problem indeed seems to be with ExifTool -- as far as I can tell it isn't handling the extended header properly. I'll fix this in ExifTool 12.46. Thanks for bringing this to my attention, and for the sample.
Last edit: Phil Harvey 2022-10-01
Thanks a lot to you, Phil, for your quick answer and spectacular work. The whole community appreciate that deeply. Thanks again!