Ratatouille (GC) *.VAI by TheMygoshi at 10:09 AM EST on November 23, 2014

Hello I already ripped the PSP/PS2 version of this game but i have some problems with the wii/gamecube version. They have the .VAI extension and I can't extract them or open them correctly. It seems to bbe compressed ADPCM (gamecube adpcm for the gamecube I think).

Here's the file: https://mega.co.nz/#!4YwBlC4A!J97yQKklJsKS-cWfnsIWL9gSRkwJAbZrnDXhxyI_2Qg

Thanks if you can help me.

by TwinkTickler at 11:32 AM EST on November 23, 2014

You're welcome!

by bxaimc at 6:46 PM EST on November 24, 2014

Ok, mind providing a couple of more files for comparison. I think I've nailed it down to implement it to vgmstream but I need more to make sure it's consistent with other tracks.

by Mygoshi at 7:53 AM EST on February 17, 2016

Can I Share you other samples ?

by Mygoshi at 8:15 AM EST on February 17, 2016

Hey! I can play this file correctly with these settings:
Nintendo GameCube DSP 4-Bit ADPCM
Freq: 32000 hz
Channels: 2 (stereo)
Header Skip: 0x4090
Interleave: 0x4000
Coeffs: 0x2C and 0x2C (same)

I can hear the music like in game, but there's some crackling noises when I play it. I think its caused by the coeffs.

LINK OF THE FILE : https://mega.nz/#!u18zxLwA!ATdV6jwGb4sA62hkH3B94JYF3ipgwky0yUcTUlij-C4

by Nisto at 4:15 PM EST on February 17, 2016

Try setting header skip to 0x4060 instead. That way the interleave aligns properly for that file. Also, I think the coefficients are actually at 0x0C (left) and 0x2C (right).

edited 5:13 PM EST February 17, 2016

by Mygoshi at 6:04 AM EST on February 18, 2016

Oh, it works !!! Thanks !! But I found Ox2C but I didn't find 0x0C, why its 0x0C ?

by Nisto at 10:06 AM EST on February 18, 2016

My question to you is why you thought both coefficients were at 0x2C, especially considering it's stereo :P

If you look in a hex editor, you can see that there's 64 bytes (coefficients are 32 bytes per channel) which look pretty similar at 0x0C.

by AnonRunzes at 11:50 AM EST on February 18, 2016

Is bxaimc still planning on implementing the .VAI format yet?

by Mygoshi at 7:56 PM EST on February 18, 2016

.VAI format is just for that game, so... I don't know if he'll do it

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