[AMR] Unknown file type

[Zetorg]

Checking for metadata in AMR file.

Code Select Expand

exiftool amr.amr
ExifTool Version Number         : 12.60
File Name                       : amr.amr
Directory                       : .
File Size                       : 2.1 MB
File Modification Date/Time     : 2011:05:26 07:00:48+05:00
File Access Date/Time           : 2023:05:27 10:35:15+05:00
File Inode Change Date/Time     : 2023:05:27 10:35:15+05:00
File Permissions                : -rwxr-xr-x
Error                           : Unknown file type
Sample can be downloaded here:
https://software-download.name/sample-amr-audio-file/dl/amr-sample-audio.zip

[StarGeek]

I found this page which seems to describe the format a bit.

[Phil Harvey]

Thanks for the sample.  I'll look into this when (if?) I get a chance.

- Phil