WAV file UMID

[marcosBal]

This is, in a way, a continuation of this 2014 feature request:
https://exiftool.org/forum/index.php/topic,5654.msg27665/topicseen.html#msg27665

Any chance exiftool could output the UMID field shown in the wavecut screenshot?

Thanks!

[StarGeek]

Do you happen to have a sample that you know contains the UMID?  Because the sample in that post did not and there's no telling if Phil even still has the sample after 5½ years.

Phil is currently on vacation until late September.  I'd suggest clicking the Notify button in the upper right corner of this thread if you would like to get an email when there's a response.

[marcosBal]

Thanks for your reply! I am having trouble attaching the file, but it is here:

https://drive.google.com/file/d/1LUQCHV4CVaR0fSpZo8zTxgOzZw_Lq_Yh/view?usp=sharing

Thanks again!

Marcos

[Phil Harvey]

Hi Marcos,

I don't see the wavecut screenshot you are referring to, but I will extract this as hexadecimal digits unless you provide me with a different format.

- Phil

Edit: Yes.  I see that this UMID is also embedded in the iXML chunk data as hex.  I will extract this too.

[marcosBal]

Hi Phil! The link I submitted was to the WAVE file itself. Here is a screenshot from Adobe Audition.

Hope this helps,

Marcos

[Phil Harvey]

Good.  The current version of ExifTool should do what you want.

- Phil

[marcosBal]

It sure does! One quick question: it shows as "0000000000000000000000000000000000000000000000000000000000000000" when there seems to be no ID. Is that due to a funky formatting of the field itself? I can easily work around this, but I am curious.

Thanks as always, Phil!!

Marcos

[Phil Harvey]

Perhaps all zeros should be interpreted as no ID.  The field is part of a fixed-format binary data block, so if the block exists the field must exist.

In the sample you sent, the UMID also existed in XML.  Do you also see the XML version when it is all zeros?  (Use the -a option to see both)

- Phil

[marcosBal]

I had already tried that, and yes --BWF UMID shows up as all zeroes in XML as well.

Marcos

[Phil Harvey]

OK.   Then I would say that the all zeros from the binary data record should be reported by ExifTool for consistency.  Unlike the field in the binary data record, the XML tag is deletable.  But it still exists as all zeros.

- Phil

[marcosBal]

Makes sense. Thanks again, Phil!

Marcos