Decompress ADPCM to PCM?

Devilot · Post by **Devilot** » Mon Jun 16, 2014 6:57 pm

Is there a tool that can decompress adpcm files to pcm\wav?
I tried using MilesSoundTools, but it's too obsolete to recognize ADPCM.

Liandril · Post by **Liandril** » Thu Jun 19, 2014 12:48 pm

I don't know any 'specific' tools (although I'm sure there are some), but a while ago, I simply used VLC to convert an ADPCM to PCM/wav.

merlinsvk · Post by **merlinsvk** » Thu Jun 19, 2014 1:30 pm

Try FFMPEG

Code: Select all

ffmpeg.exe -i ms_adpcm.wav pcm.wav

Devilot · Post by **Devilot** » Thu Jun 19, 2014 2:21 pm

Liandril wrote:I don't know any 'specific' tools (although I'm sure there are some), but a while ago, I simply used VLC to convert an ADPCM to PCM/wav.

how?

Vosvoy · Post by **Vosvoy** » Thu Jun 19, 2014 7:40 pm

Hi,

take a look a this: viewtopic.php?f=17&t=10685

Payday 2 ( for example ) use WWISE IMA_ADPCM i presume. There's many types of ADPCM formats if I'm not mistaken.

The conversion via VLC consists on a batch command file. You can learn more about VLC commands on Google.

Cordialy

Liandril · Post by **Liandril** » Thu Jun 19, 2014 11:20 pm

Vosvoy wrote: The conversion via VLC consists on a batch command file. You can learn more about VLC commands on Google.

You can do the conversion directly in VLC (v2.1.0), too. Open vlc, then

Media->Convert/Save
In the Open Media dialog, click on "add" to select the (ADPCM) file and choose "convert"
In the convert dialog, click the "edit profile" button and choose "wav" in the encapsulation tab and once again "wav" in the audio codec tab
choose destination file and press start

Devilot · Post by **Devilot** » Fri Jun 20, 2014 8:29 am

ahh. it's a Save as option. I thought it was an actual decompression..

Pepper · Post by **Pepper** » Fri Jun 20, 2014 4:46 pm

Devilot wrote:ahh. it's a Save as option. I thought it was an actual decompression..

Well.. ADPCM compression is lossy.
it's not like a zip file where you can get back the original full quality file by unzipping it, decoding an adpcm file is like decoding an mp3, you'll always have some loss.

Vosvoy · Post by **Vosvoy** » Fri Jun 20, 2014 4:51 pm

Pepper wrote:
Devilot wrote:ahh. it's a Save as option. I thought it was an actual decompression..
Well.. ADPCM compression is lossy.
it's not like a zip file where you can get back the original full quality file by unzipping it, decoding an adpcm file is like decoding an mp3, you'll always have some loss.

Yes it's true. When I decompressed sounds from Payday 2 I get a slight and hissy artefact in the sounds.

Pepper · Post by **Pepper** » Fri Jun 20, 2014 11:41 pm

Vosvoy wrote:
Pepper wrote:
Devilot wrote:ahh. it's a Save as option. I thought it was an actual decompression..
Well.. ADPCM compression is lossy.
it's not like a zip file where you can get back the original full quality file by unzipping it, decoding an adpcm file is like decoding an mp3, you'll always have some loss.
Yes it's true. When I decompressed sounds from Payday 2 I get a slight and hissy artefact in the sounds.

did you use vlc for that without using imarejigger first? payday and the sequel use audiokenetic adpcm, which doesnt always decode right unless you fix it with hcs's tool.

Vosvoy · Post by **Vosvoy** » Sat Jun 21, 2014 2:36 am

Pepper wrote:did you use vlc for that without using imarejigger first? payday and the sequel use audiokenetic adpcm, which doesnt always decode right unless you fix it with hcs's tool.

Huh... Yeah, but now I use a tool that I found on a website about Payday 2 modding (called wwise_ima_adpcm.exe). It convert WWise files to wavs. The hissy artefact is not very annoying anyway (it's kind of audible on shell casing and firing layers sounds, for example).
If I took this tool it's mainly because it was a pain in the ass to cut the .bnk files via HxD to have each sounds in this container (imagine: manualy cut about 2000 files, take you a goddamn time).
So, today I don't use ima_rejigger2+VLC anymore. The result is quite better and faster.

Cordialy

SILENTpavel · Post by **SILENTpavel** » Sun Jun 22, 2014 1:20 am

Devilot wrote:Is there a tool that can decompress adpcm files to pcm\wav?
I tried using MilesSoundTools, but it's too obsolete to recognize ADPCM.

try VGMToolbox + VGMstream and GENH format:
http://sourceforge.net/projects/vgmtoolbox/
http://sourceforge.net/projects/vgmstream/
http://hcs64.com/files/vgmstream_external_dlls.zip

Devilot · Post by **Devilot** » Mon Jun 23, 2014 8:27 am

SILENTpavel wrote:
Devilot wrote:Is there a tool that can decompress adpcm files to pcm\wav?
I tried using MilesSoundTools, but it's too obsolete to recognize ADPCM.
try VGMToolbox + VGMstream and GENH format:
http://sourceforge.net/projects/vgmtoolbox/
http://sourceforge.net/projects/vgmstream/
http://hcs64.com/files/vgmstream_external_dlls.zip

I already have VGMstream

but I don't know how to use the others.

XeNTaX

XeNTaX

Decompress ADPCM to PCM?

Decompress ADPCM to PCM?

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