EA mus multichannel

Codecs, formats, encoding/decoding of game audio, video and music
AlphaTwentyThree
Posts: 909
Joined: Sat Aug 09, 2014 11:21 am

EA mus multichannel

Post by AlphaTwentyThree »

Hello!

I've just written a script that extracts single audio tracks from VP6 videos with multiple audio tracks as VGM Toolbox doesn't support these. The resulting file is a EA mus file but with changed block headers. I've also written a script that corrects these headers. However, the resulting file isn't playable. The time is correct but there's no audio.
Here's an example from Medal of Honor: Warfighter (PS3):
https://mega.nz/#!C1MQVagY!sByV6F8cMDqb ... nOY-VOdsvU
I have once done something similar with the movie files from Dante's Interno but these are stereo so it worked fine. As far as I can see, the difference is in the header which is size 0x38 in multichannel files. Maybe this has something to do with vgmstream?

Help is very appreciated!
cyberspeed
Posts: 104
Joined: Wed Mar 23, 2016 5:11 am

Re: EA mus multichannel

Post by cyberspeed »

Do you specifically need those sounds from the PS3 version?
Because PC version of the game is super easy to gain access to its assets, including meshes/textures/sounds/music.
This is one of the videos from PC version and extracted audio using your script and plays just fine in foobar2000.
6chvideo.JPG
Skoczek
Posts: 37
Joined: Wed Aug 25, 2021 10:10 pm

Re: EA mus multichannel

Post by Skoczek »

AlphaTwentyThree wrote:Hello!

I've just written a script that extracts single audio tracks from VP6 videos with multiple audio tracks as VGM Toolbox doesn't support these. The resulting file is a EA mus file but with changed block headers. I've also written a script that corrects these headers. However, the resulting file isn't playable. The time is correct but there's no audio.
Here's an example from Medal of Honor: Warfighter (PS3):
https://mega.nz/#!C1MQVagY!sByV6F8cMDqb ... nOY-VOdsvU
I have once done something similar with the movie files from Dante's Interno but these are stereo so it worked fine. As far as I can see, the difference is in the header which is size 0x38 in multichannel files. Maybe this has something to do with vgmstream?

Help is very appreciated!

Can you reupload this?
Skoczek
Posts: 37
Joined: Wed Aug 25, 2021 10:10 pm

Re: EA mus multichannel

Post by Skoczek »

AlphaTwentyThree wrote:Hello!

I've just written a script that extracts single audio tracks from VP6 videos with multiple audio tracks as VGM Toolbox doesn't support these. The resulting file is a EA mus file but with changed block headers. I've also written a script that corrects these headers. However, the resulting file isn't playable. The time is correct but there's no audio.
Here's an example from Medal of Honor: Warfighter (PS3):
https://mega.nz/#!C1MQVagY!sByV6F8cMDqb ... nOY-VOdsvU
I have once done something similar with the movie files from Dante's Interno but these are stereo so it worked fine. As far as I can see, the difference is in the header which is size 0x38 in multichannel files. Maybe this has something to do with vgmstream?

Help is very appreciated!

Can you reupload this?
AlphaTwentyThree
Posts: 909
Joined: Sat Aug 09, 2014 11:21 am

Re: EA mus multichannel

Post by AlphaTwentyThree »

If I only knew which game this was from... Long time ago.