I couldn’t find a setting to turn off the background music, so recording the sounds via line-in is not optimal.
If anyone here has a jailbroken iPhone/iPod Touch with Street Fighter IV and is able to record the sound via line-in, please send me a pm - it’s possible to change files within the app with a jailbroken iphone.
I’ll look into decrypting the files again tomorrow.
Will the game run if you delete the music files? Then record the sound effect with a line-in setup…
-Bean
We’re still trying to open the files up in app. I am trying to just delete the background music so i can record the file, and will report back if it works. Have you browsed the sf4 folder in the iphone? Or do you think you know what the file name of the background music is? It pretty much could be the same file as the pc. If you know which it is it would really help 
The .pvr files are the background stage files. Trying to locate the music files.
Definitely delivering today. Just have to tweak the files a bit
Edit:
I’m putting the csb back together and replace it… but nothing changes, even though the sound is clearly different when I unpack it or play it in the SFIV Audio Manager… any suggestions?
We did it!
http://rapidshare.com/files/370372745/sfiv-arcadeblocksound.zip
Quality can and propably will be improved, but I’m happy with the results already
Thanks again to supdawg79
I upped the volume a bit, updated version coming soon.
Just tried it, thanks so much for the effort, I was constantly bringing back the subject in different PC-related threads, now it’s done !
Just a remark, I think the blocking sound’s a little bit “muffled” (hope this is the right word), or muddy… is it really 44100hz ? Or compressed ? I mean it just doesnt sound as “clear” as the other hit sounds of the games. Maybe because I’m not used to it, so it still feels weird…
Great job anyway !
I’m uploading the better version right now… it’s still “muffled” - and yeah it’s 44100hz and uncompressed… keep in mind that this is recorded via line in.
Thanks dude. I just tried it out last night. It sounds great.
It needed to be louder but its a bit too loud now, a bit too overwhelming.
I agree. I will improve the volume and the quality later this week.
Stay tuned and enjoy what we have already 
http://rapidshare.com/files/370815045/sfiv-arcadeblocksound_v3.zip
Better Quality, perfect volume. Enjoy.
thx good job
thank you! nice sound-mod
Wow, that was quick. Sweet man. Great job. Can you get the hadoken impact sounds too? I’m not sure if any other sounds are different.
Yeah we’ve implemented that already, will get that up asap
Yet again we’ve got an update… including the fireball sound, lowered the volume a bit and improved the quality.
http://rapidshare.com/files/371090458/sfiv-arcadeblocksound_v4.zip
Thank you, it’s flawless now.
v4 is very nice!
Oh man, this is great. Still seems kinda loud IMO but I’m not complaining. 9001 internets to StruC, you da man.