Hi all. I am reversing this older codec from Battlefield Bad Company 2 and I remember posts in xentax about a codec like this I dont remember if its SNR SNS or SPS or whatever. But the complete header detail is missing now that the website is down. 

 

The first 4 bytes are the signature 

then: 

byte - codec version ? (either 0x14 or 0x16) - for the 0x14 version audio blocks are 76 bytes. the other seems to be different

byte - mono stereo ? (either 0x00 or 0x04) 

u16 - sample rate 

byte - unknown, either 0x40 or 0x44 

I know this has been a subject of research back in BF3 days too, can anyone refresh my mind? thanks 

 

 

AUDIO.zip

If your file starts with 48 00 00 0C it should be a sps file. On the other hand, if it starts with 48 00 00 16 it is a sbs file that is typically coupled to a sbr file.
Have a look at these: eaac and eaac_sbr. Those links direct you to the vgmstream github.

Do you know how to encode a wav or mp3 file with EA Sound Exchange or any other tool as in the attached image? In particular, how to create a sps or sbs file with atrac9 encoding with EA SX or any other tool as shown in the attachment.

 

Edited June 15, 20251 yr by lorak

By the way, you can convert a wav or mp3 audio files to sps via EA SoundExchange (EASX latest version) with the following commands:

sx -sndplayer -fileformatversion1 -ealayer3_int -vbr100 <input> -=<output>

Note that in this case we tell EASX to apply EALayer3 encoding.

Edited June 15, 20251 yr by lorak

9 hours ago, lorak said:

By the way, you can convert a wav or mp3 audio files to sps via EA SoundExchange (EASX latest version) with the following commands:

sx -sndplayer -fileformatversion1 -ealayer3_int -vbr100 <input> -=<output>

Note that in this case we tell EASX to apply EALayer3 encoding.

 

I cant find the 2004 version of SX.exe, do you have it? 

Yeah vgmstream works, all I needed was to put the .sps extension on the samples.

1 hour ago, V12-POWER said:

I cant find the 2004 version of SX.exe, do you have it? 

Yeah vgmstream works, all I needed was to put the .sps extension on the samples.

You can get SX 6.00.00 here.

Edited June 15, 20251 yr by lorak

On 6/15/2025 at 8:00 PM, lorak said:

You can get SX 6.00.00 here.

 

Thanks man. So this SX tool is good to encode EA Layer 3 v1, but is it the right tool to encode to EA XAS v1? or no such encoder exists? 

19 minutes ago, V12-POWER said:

Thanks man. So this SX tool is good to encode EA Layer 3 v1, but is it the right tool to encode to EA XAS v1? or no such encoder exists? 

Try this: 

sx -sndplayer -fileformatversion1 -xas_int -vbr100 <input> -=<output>

Note that xas_int refers to XAS Interleaved (Version 1) and xas0_int refers to XAS Interleaved (XA Seekable).
Please mark one of these post as solution.