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PostPosted: Thu Jan 22, 2015 3:05 pm 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
Hello everyone!

The Great Escape for Xbox stores its music in PSF files. The music is segmented.

Please somebody take a look at this PSF, to help me extracting them to rebuild the music.

https://mega.co.nz/#!cNpyzQwD!gHBis3Kot ... eRgrLXHIyo

Thanks in advance!

Edit: This issue is solved.

Here's the solution: simply drag and drop your PSF files into Foobar2000, with the vgmstream plugin installed and enabled. It'll basically do everything, like cutting the file into their respective segments, ordered, and you can play them.


Last edited by Mygoshi on Wed May 06, 2020 12:48 am, edited 5 times in total.

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PostPosted: Fri Jan 23, 2015 10:32 am 
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Joined: Wed Jul 30, 2014 9:32 pm
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http://aluigi.org/papers/bms/others/gre ... pe_psf.bms


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PostPosted: Wed Oct 21, 2015 3:24 pm 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
Thank you! It correctly extracted the segments from the PSFs.

I tried with the PC version, and it also worked.

The problem now is to find what's the format used by the music...

Here are PC extracted file samples: (deleted link)

Thanks.


Last edited by Mygoshi on Wed May 06, 2020 12:38 am, edited 2 times in total.

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PostPosted: Wed Oct 21, 2015 4:01 pm 
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That byte at every offset 8 of the extracted files (in reality it's offset 0 because the first 8 bytes are the PSF header) reminds me to an adpcm codec I have already seen but don't remember what.
So it's not pcm.
Are you really sure it's the PC version?


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PostPosted: Wed Oct 21, 2015 4:06 pm 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
Yeah I checked it's the PC version.


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PostPosted: Fri Oct 23, 2015 9:28 am 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
So is there a way to figure out the codec used, please?


Last edited by Mygoshi on Wed May 06, 2020 12:36 am, edited 2 times in total.

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PostPosted: Fri Oct 23, 2015 10:06 am 
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Eh no, I prefer to stay out from audio stuff.
Check with hcs if he has ideas about that codec.


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PostPosted: Sun Aug 06, 2017 12:27 pm 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
Update: the codec used by the music could be PS ADPCM with bad flags.

Could somebody use this information to help me?

Thanks!


Last edited by Mygoshi on Wed May 06, 2020 12:35 am, edited 1 time in total.

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PostPosted: Mon Jan 01, 2018 12:48 pm 

Joined: Sun Mar 22, 2015 7:09 pm
Posts: 924
Here's stereo PSF decoder I made for you. Yes, its cutsom codec, very similar to PS ADPCM. Different number of nibbles and no flags.

Only works with stereo. Let me know if you need mono.
Also, no sample rate is in the file, so i write it as 44100, although some of them are 37000 or about that.

Segmented files look like stereo segments 1 second each.


Attachments:
GreatEscapePSF.rar [2.72 KiB]
Downloaded 126 times
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PostPosted: Mon Jan 01, 2018 2:35 pm 

Joined: Sun Mar 22, 2015 7:09 pm
Posts: 924
after extracting segments its possible to load them all in order into editor, so they will be kind of complete set of music parts, which will play together:

Image


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PostPosted: Mon Jan 01, 2018 2:46 pm 

Joined: Sun Mar 22, 2015 7:09 pm
Posts: 924
use this so Luigi's script will export files with decimal names


Attachments:
great_escape_psf.bms [1.42 KiB]
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PostPosted: Mon Jan 01, 2018 3:48 pm 

Joined: Mon Oct 27, 2014 1:49 pm
Posts: 695
Totally awesome, good job!! Really!! Thank you.
It works like a charm.


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PostPosted: Sun Jun 09, 2019 8:53 pm 

Joined: Wed Sep 12, 2018 2:22 am
Posts: 305
Can someone update this script so that it can work on the PC version files?: https://archive.org/download/The.Great. ... ailure.psf


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