SEE UPDATE BELOW
This will not work with the older 2.XX ROMs, the files are different between the ROMs and using the wrong one may make your phone SILENT.
This file is designed to increase the volume of the phone. It increases the ear piece speaker, speakerphone speaker, and headphone/handsfree speaker levels.
The ear piece and speakerphone speakers start at the factory Sprint level for low, but get louder in greater steps. The loudest was near the edge of distortion when I called my voicemail.
The headphone/handsfree level has been increased by about 15%, no where near as much as the first 2, but its headphones, so I'm not jacking it up that much.
1. Download audiopara.csv.txt
2. Rename to audiopara.csv (meaning you get rid of the .txt part)
3. Backup audiopara.csv from your Windows directory of your phone.
4. Copy into the Windows directory of your phone, overwriting the original.
5. Soft reset. Yes you need to soft reset.
Disclaimer : I am not responsible if you break your phone or go deaf. This is not a hard thing to do, read the directions twice. Also be careful when using initially as the volume is louder than it was when you got the phone.
Anyone may feel free to use this file in a custom ROM or whatever, jsut put my name in there, if you would.
Thanks to mswlogo for figuring out how to do this in the older ROMs.
Glad I could finally give back to the community that has helped me out so much. Enjoy.
FILE: http://www.scrufdog.com/AudioPara.csv.txt Right Click, Save Target As...
If someone wants to do a mirror thing go for it.
UPDATE: NOW WITH CAB FILE
I've also added the original since people arent backing up.
Here's the new and improved way to install. This zip file has my original .csv file in it AND now comes with a .cab file for easy install, without overwriting and copying and such.
Instructions are the same for the csv file.
Instructions for the cab are fairly simple.
1. Copy cab to phone.
2. Run cab, install to Device.
3. When done, soft reset.
4. Enjoy loudness.
Let me know if there are problems.