Hi all,

Submitting a sample file here. I'm just a user of ffmpeg who has been 
dealing with some audio files recorded using Microsoft OneNote recently. 
ffmpeg (build from source 2025-11-27) can read these files, but it emits 
the following message:

> [wmavoice @ 00000295a119d180] WMAPro-in-WMAVoice is not implemented. 
> Update your FFmpeg version to the newest one from Git. If the problem 
> still occurs, it means that your file has a feature which has not been 
> implemented.
> [wmavoice @ 00000295a119d180] If you want to help, upload a sample of 
> this file to https://streams.videolan.org/upload/ and contact the 
> ffmpeg-devel mailing list. (ffmpeg-devel@ffmpeg.org)

I've attached a sample audio file that makes ffmpeg output this message 
when read, and also uploaded it to the VL upload website. If it helps to 
reproduce my sample file: Microsoft has a bajillion versions of OneNote, 
but mine identifies itself as "Microsoft® OneNote® for Microsoft 365 MSO 
(Version 2510 Build 16.0.19328.20244) 64-bit" and is running on a 
Windows 11 PC.

Best regards (and thank you sincerely for your continued work on ffmpeg 
from an indie media artist),
_ Ben Macphail
bnjmn.id