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LOLLIPOP USERS: You need a full permissive kernel to get Viper working for now. If your kernel isn't permissive by default download this app https://play.google.com/store/apps/d....selinux&hl=en and set SELinux to PERMISSIVE mode, then go into Developer Options -> "Use NuPlayer(experimental)" and uncheck the box. Enjoy!

I made 2 flashable zip of version 2.3.4.0; the first one will install (recommended):

• Viper4Android in priv-app
• the 2 patches for Lollipop
• remove AudioFX, DSP manager, and MusicFX

The second one only contains Viper 2.3.4.0, so you have to manually flash the 2 zip patches you find below.

If you have jack issues give this post a look:
http://forum.xda-developers.com/show...&postcount=259

FAQ:

How do I install Viper??? 

Go into recovery and flash the zip. It will take care of most of the steps for you. Upon your first launch of the app you will be prompted to install drivers of your choosing then be prompted for a reboot. If coming from a previous version of Viper or you have any other sound mods I fully recommend uninstalling them. Then go into recovery and flash your ROM and the zip in one session.

How do I update the app???

Uninstall the drivers and the apk then go into recovery and flash the newest zip. If you update through the Viper app itself you will wind up with Viper in both priv-app and data app which may cause problems.

Well what drivers do I use???

I recommend Super Audio quality. It uses a higher sampling rate which can be thought of as like a megapixel on a camera. More sample information equals cleaner signal but your files must be equal to or better than the driver sampling rate. I find the highs to be much cleaner and have less distortion with Super Audio. While the prompt warns about extra battery usage, testing with Better Battery Stats for me has shown the effect on battery life to be minimal. You will get higher drain using the Convolver then by choosing a higher quality driver.

Well what is Convolver and how do I use it???

Convolver will play a real time sample of an effect or eq as the sound is being processed. You can get really awesome effects from some of the irs samples but they come at a high price of battery usage. Using this setting doubled battery life usage for me on even conservative kernel governors. To enable you must go to the menu and enable Moderate or Expert UI, then press the button to enable Convolver and press Impulse Response, this will create a ViPER4Android folder on your SD card and within that you will have a folder named Kernel. This is where you will put your Irs Samples you download. You can find links to Irs packs here: http://forum.xda-developers.com/show....php?t=2216193 PS......I've found that not all samples in all the packs work correctly and some will give no sound change.

HAAAAALP! This stoopit mod is killing my battery!!!

No it isn't. Unless you're using Convolver after being warned about it's effect on battery you should see little to no difference in daily use of getting notifications, texts, etc. I get about 6% an hour battery usage during music playback while streaming over bluetooth. If you're using a wired headset it should be less than that. I have never not even once seen Viper pop up on my stock battery stats and have only seen it as <1% on GSam after a full charge.

Why put the app in priv-app???

This will help to insure that Viper doesn't get killed by Android OOM to keep the sweet sound pumping into your ears!!!

My Viper isn't working!!!

Did you install by flashing the zip??? Is your apk in priv-app??? Do you have any other conflicting sound mods or eq's??? Is Viper enabled and you have installed the drivers and done a reboot???

Some music players work better by switching to Compatibility Mode. To do that go to menu, click FX Compatible Mode, then click Compatible. Doing this should cause Viper to only modify media players instead of changing sound system wide. Some users say this helps with battery usage as Viper will only process sound when you want it to.

I don't want Viper anymore!!!

Simply dirty flash your ROM. It's much simpler to do that than to uninstall the driver, delete the app from priv-app, extract DSP Manager or MusicFX from a zip, manually push it to system, and reboot.


Wanted to say thanks to @rootSU and @FlyinGrub for lending a helping hand, @FuMMoD for posting updates to the Viper apk and libs, and @davwman for getting this thread started. And of course the awesome Viper team for creating Viper. I refuse to run my phone without it!

Here is a link to the official thread for more information: 

http://forum.xda-developers.com/show....php?t=2191223

Attached Files

	viper_v2.3.4.0 - remove fx build fix.zip - [Click for QR Code] (6.27 MB, 2310 views)
	viper_v2.3.4.0.zip - [Click for QR Code] (6.21 MB, 1256 views)
	Viper4A-_Build.Prop-Tweaks_-CWM.zip - [Click for QR Code] (160.4 KB, 494 views)
	Viper4A-_Soundfix-LibFiles_-CWM.zip - [Click for QR Code] (265.1 KB, 458 views)

UPDATED OP Nexus 6 ViPER4ANDROID 2.3.4.0 flashable zip