[Motorola Droid RAZR] theunbound1:
VipersAudio

I tried Acid, Beats, and every sound app and music player there is for my Droid Razr after the JB update totally ruined any hope of getting good sound quality back on my stock system...they all failed miserably.

What you need to do is start with a stock system then gain root then use Vipersaudio. This app/driver works with speaker, headphones, bluetooth, and Dock.

1. find the latest Apollo player (great work to CM team) on xda developers and install it. (http://xdaforums.com/showthread.php?t=2196385) Probably should enable the album art update over 4g as well in settings. Vipersaudio will sometimes not work with the built-in music players that come with some stock systems...such as the stock music player in samsung phones, but apollo is better anyway.

2. go into your phone settings and turn off the built in audio effects (they are useless anyway)

3. Then go to vipersaudio.com/blog and get the latest version (FX version v2.3.2.6 (Android 2.3~4.4) at the moment)...it downloads as a zip that contains 2 apk files.

4. Install the apk version for your android OS. They two files are named for their respective android OS version (4.x works well, even on the latest android versions).

5. now when prompted (by starting the app or by using its menu) install the super quality audio driver. your phone can handle it :) (It will need root access)

6. (new for latest versions) It will request you install busybox. Do so, then let busybox do its smart setup, then install it when done with the bottom button option. Then exit busybox.

7. Once you install the driver from within the Viperaudio app, you may see a request that you have low audio power software restrictions on your phone. It will ask if you would like to remove them in order for Viper to function correctly. Hit OK and Viper will automatically edit build.prop accordingly. It will not show you a confirmation message when done...So just wait a second or two, then close the Viper app.

6. reboot your phone as the app requested, buddy.

7. Create shortcuts to Apollo and Vipers audio in a handy screen of your choice.

8. Start Apollo player.

9. Start the Viper audio app, then open the menu and change the UI Setting to EXPERT.

10. This software will make a massive difference, and it's also uninstallable and toggles on/off.

11. Play with the settings until you wear your gorilla glass out!

For good setup headphones...

El Cheapo way: Go to Big Lots and get the Sentry HM960 Deep Bass headphones to set up your phone with (This is an optional step, but for $10 you get superior headphones...i promise)

or Slightly Less El Cheapo way: Go on ebay or Amazon and get a pair of Maxell 190228 Amplified B/W Python Headphones ($17)...They are discontinued, but still widely available. They are not actually amplified, however their Sig-to-Noise ratio will make then play at least 5x louder than other headphones. The sound quality is astounding. You don't have to get the white version, but I'm not a fan of the other colors.

My Droid Razr Maxx (in headset mode):

a. ​enable FX (powered on)

b. Enable the Firequlizer and tweak it a bit....do the wave buddy so +3 on 27hz then ramp down to +1 at 438hz, then ramp up to +4 or 5 at 14khz.

c. Enable Viper Bass (not the one in the Dynamic system settings yet), select bass mode of Pure Bass+@50hz with boost of 16.3db

d. Enable Viper Clarity and select XHiFi mode @3.5db.

e. then tweak all you like...check out the subwoofer bass setting, or if feeling lazy, just play with the dynamic system setting.

My Samsung Galaxy Note (in headset mode)(Why did Samsung restrict the sound quality and make it so horrible...oh well, at least Vipersaudio can remedy that!)

a. ​enable FX (powered on)

b. Enable the Firequlizer and tweak it a bit....do the wave buddy so +5 on 31hz then ramp down to +4 at 250hz, then ramp up to +5 at 4khz and down to +4 at 16k.

c. Enable Viper Bass (not the one in the Dynamic system settings yet), select bass mode of subwoofer+@50hz with boost of 14.8db

d. Enable Viper Clarity and select XHiFi mode @3.5db.

e. then tweak all you like.