Impossible to extract certain sonic unleashed audio tracks

[Pipixel]

Hi, when I try to extract audio tracks from specific SFD files like the intro cinematic of sonic unleashed for example, I have extremely slow conversion (for wav or adx and occurred an error a minute after the try) or it doesn't want to work at all (stuck for converting to mp3)

[Firebow59]

Hey there! This is an issue with SFD files that use AIX audio instead of ADX audio (which Unleashed's opening does). I'll see what I can do to fix this in the next version but unfortunately I can't guarantee anything.

If you do need the AIX audio, you can use VGMToolbox (https://sourceforge.net/projects/vgmtoolbox/), go to Stream Tools -> Video Demultiplexer, choose SFD in the dropdown menu and tick only extract audio and then drag and drop the SFD file into the box above the options, and it should output the AIX files. From there, use aix2adx (found on here: https://www.hcs64.com/vgm_ripping.html) and it should output multiple adx files. From there you can convert them (one by one unfortunately) to MP3 using this FFmpeg command:

ffmpeg -i [ADX FILENAME HERE] -b:a 320k -bitexact [OUTPUTNAME].mp3

Hopefully this works for you!

[Pipixel]

I'll try, thank you