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Viper4Android FX on stock based ROMs

Hi there!
I'm using Existenz ROM, a stock-based rom, and yesterday I tried to install Viper4Android FX with no success. I had already installed it on CyanogenMod and it worked perfectly. After having installed Viper FX on my phone, I opened it and it installed the drivers. Then it told me that LPA (Low Power Audio) was enabled in build.prop and that it could cause problems, so I allowed Viper to remove this feature from build.prop.
Then I rebooted and I started playing with settings. I opened Walkman but sound was the same as before. I enabled "Force Viper FX" but it didn't work either.
Can you help me?
Thanks!

Tomoms said:
Hi there!
I'm using Existenz ROM, a stock-based rom, and yesterday I tried to install Viper4Android FX with no success. I had already installed it on CyanogenMod and it worked perfectly. After having installed Viper FX on my phone, I opened it and it installed the drivers. Then it told me that LPA (Low Power Audio) was enabled in build.prop and that it could cause problems, so I allowed Viper to remove this feature from build.prop.
Then I rebooted and I started playing with settings. I opened Walkman but sound was the same as before. I enabled "Force Viper FX" but it didn't work either.
Can you help me?
Thanks!
Click to expand...
Click to collapse
Stock Sony sound enhancements conflict with Viper Audio. The way I got V4A working on a stock Sony rom is by rooting, installing App Master, and using this app to uninstall all the sound enhancements that Sony puts into the ROM (I believe there are 3 packages to remove). App Master has the option to put apps in a recycle bin, so if you uninstall an app that actually breaks your sound system all together, it is fairly easy to undo the changes. After you uninstalled the stock sound fx, install V4A and it should work.
BTW - not sure if V4A will work with the Walkman app at all. You might want to try Poweramp.

Goto Settings/Sound/music setings or sound settings and select viper4android.Then use v4a.It will work

umair42 said:
Goto Settings/Sound/music setings or sound settings and select viper4android.Then use v4a.It will work
Click to expand...
Click to collapse
Great! It worked! Thank you :good:

jupitreas said:
Stock Sony sound enhancements conflict with Viper Audio. The way I got V4A working on a stock Sony rom is by rooting, installing App Master, and using this app to uninstall all the sound enhancements that Sony puts into the ROM (I believe there are 3 packages to remove). App Master has the option to put apps in a recycle bin, so if you uninstall an app that actually breaks your sound system all together, it is fairly easy to undo the changes. After you uninstalled the stock sound fx, install V4A and it should work.
BTW - not sure if V4A will work with the Walkman app at all. You might want to try Poweramp.
Click to expand...
Click to collapse
V4A works perfect with Walkman , even with soundcloud.

[Q] ViperAudio and CM11 [KitKat 4.4.4]

Hi,
Since my tussle with Google didn't yield any meaningful and relevant result, I am posting a new thread to gather cues.
I got CM11 latest nightly installed (actually I tried quite a few since June) and it does not seem to like Viper Audio. The drivers gets installed but never processes audio samples. I even tried installing it as a system app but no success.
Annoyingly, ViperAudio works fine on my Asus Transformer Infinity running on CM 11 same build - just as a system app! Just as it should. It also works fine on Z1 stock ROM.
I checked build.prop to see if any LPA decode settings are in place. None - as expected for any AOSP ROM. The inbuilt DSP manager works but not quite what I want.
So, now I am here seeking help!
Thanks in advance,
Soumya

soumya.banerjee said:
Hi,
Since my tussle with Google didn't yield any meaningful and relevant result, I am posting a new thread to gather cues.
I got CM11 latest nightly installed (actually I tried quite a few since June) and it does not seem to like Viper Audio. The drivers gets installed but never processes audio samples. I even tried installing it as a system app but no success.
Annoyingly, ViperAudio works fine on my Asus Transformer Infinity running on CM 11 same build - just as a system app! Just as it should. It also works fine on Z1 stock ROM.
I checked build.prop to see if any LPA decode settings are in place. None - as expected for any AOSP ROM. The inbuilt DSP manager works but not quite what I want.
So, now I am here seeking help!
Thanks in advance,
Soumya
Click to expand...
Click to collapse
Do you use DSP manager?

CM11 DSP Manager
omegahanggara said:
Do you use DSP manager?
Click to expand...
Click to collapse
Hi,
No, I do not use DSP Manager - I find it's under-powered in every aspect. One of the main reasons for using ViperAudio is using Convolver.
Did you get ViperAudio to work with latest CM11 build (KK 4.4.4)? If yes, how?
Soumya

[APP] DSP Manager 5.0.2 for Angler

Fellow XDA members, I have made a flashable zip with my favorite dsp app that works with Nexus 6P.
I pulled out some files from CM13 and packed it with dsp 5.0.2 and now I’m going to share it with you.
This will write in /system
This package should work with all roms. No guarantees though, remember to back up your system first.
Working:
Bluetooth dsp
Headphone jack dsp
My setup:
Stock ROM MMB29P
Kernel: Franco r7
Recovery: latest TWRP
SuperSU 2.66
Busybox (might affect install script in recovery)

Do i have to flash it in recovery?

Prattham said:
Do i have to flash it in recovery?
Click to expand...
Click to collapse
Yup u do.
Sent from my so Dope 6P using Tapatalk

work well in all roms? it is necessary delete or freeze any file?

guta12 said:
work well in all roms? it is necessary delete or freeze any file?
Click to expand...
Click to collapse
I flashed it in screwd and working fine
No you do not have to do that if you already aren't using an equaliser such as audio fc or Viper
Cheers ?

Will this work on nexus 6?
Sent from my Nexus 6 using Tapatalk
---------- Post added at 11:04 AM ---------- Previous post was at 10:57 AM ----------
Just tried it and it works
Sent from my Nexus 6 using Tapatalk

kasarona said:
Fellow XDA members, I have made a flashable zip with my favorite dsp app that works with Nexus 6P.
I pulled out some files from CM13 and packed it with dsp 5.0.2 and now I’m going to share it with you.
This will write in /system
This package should work with all roms. No guarantees though, remember to back up your system first.
Working:
Bluetooth dsp
Headphone jack dsp
My setup:
Stock ROM MMB29P
Kernel: Franco r7
Recovery: latest TWRP
SuperSU 2.66
Busybox (might affect install script in recovery)
Click to expand...
Click to collapse
how to remove dis getting fcs

nickhil90490 said:
how to remove dis getting fcs
Click to expand...
Click to collapse
Did you clear cache?
What is FC:ing? If it is dspmanager.apk then just delete it from /system/priv-app/
Or just restore the backup you made before flashing...
If you didnt and want a clean setup then dirtyflash your current rom
Hope this helped :/

Does it have any negative effect on the battery?

Well, I bit the bullet and flashed it...No FC's, but I can't tell any difference on any of my apps (YouTube, NetFlix, Shuttle+, ect...). My Main audio player is Poweramp, it has it's own EQ that over-rides system EQ's.
I'll mess with it more later and see if I can get it to work?
ROM: Screw'd 2/5/16 build
EX kernel: 1.0.8 build
No other mods (no busybox or Xposed).

UPDATE:
I messed around with it and It's working on a couple of my audio apps, but not YouTube or NetFlix (that I can tell).

tele_jas said:
UPDATE:
I messed around with it and It's working on a couple of my audio apps, but not YouTube or NetFlix (that I can tell).
Click to expand...
Click to collapse
Intresting, i only use the dsp for audio apps (actually, only spotify) and i have never thought about the effect in video apps..
Does the equalizers usually work with video apps?

kasarona said:
Intresting, i only use the dsp for audio apps (actually, only spotify) and i have never thought about the effect in video apps..
Does the equalizers usually work with video apps?
Click to expand...
Click to collapse
I can't say whether EQ's work with video apps, since the 6P doesn't have one included in the ROM.....But on other phones I've had, yes it does.
I know the Dolby Atmos + Viper mod works system wide, including video apps. But there is somewhat of a slight battery drain - and it works until I use PowerAmp, then it won't work again until I reboot my phone.... I like PowerAmps EQ better and have some presets saved, so will continue using that over any system wide EQ/DSP.
It'd just be nice to have something that works on video (YouTube, Netfilx, ect...)

tele_jas said:
It'd just be nice to have something that works on video (YouTube, Netfilx, ect...)
Click to expand...
Click to collapse
Works DSP+

Get viper4android to apply in spotify/streaming services

As the title says, im currently using magisk module for viper4android but it's not working in spotify works great in poweramp. Dose any1 know how to get it to work?

no1 got this working yet =/ ? chucks!

I had to remove "audiofx" to make viper work with spotify(magisk) on resurrection remix

RaW D Coy said:
no1 got this working yet =/ ? chucks!
Click to expand...
Click to collapse
What have you done to get it working?

Try setting FX Compatible Mode from "Normal" to "Compatible", used to work back in the days. If not, just flash ARISE Magnum Opus package, Viper works out of box.

Just download ARISE+Deuteronomy+2.4+Add-ons+AROMA+Installer.zip

[Zip]Dolby Atmos Oreo working! **also Dolby Digital Plus apk**

**As an alternative, Dolby Digital Plus apk can be used. No root required.
It's not as comprehensive but will enhance your music listening experience.
Dolby Digital 1.6 app can be downloaded here:
https://devfiles.co/download/Nq44yRMN/Dolby-Digital-1.6.apk
This version of Dolby Atmos is working on Oreo. Had no luck with other versions.
I downloaded DolbyAtmos_Axon7_Oreo_20180125.zip to be precise.
I installed via recovery TWRP. Not Magisk. I took no other steps than to download the file listed above, install via TWRP and reboot.
Later I installed Viper4android via Magisk. Both are working fine.
Thanks guitartedhero for this!!
https://forum.xda-developers.com/android/software/app-dolby-atmos-axon-7-oreo-port-t3740508

is there a way to install this without Magisk but Super SU?

I did install using TWRP and did not use magisk. None of the existing magisk modules worked for me. I don't believe SuperSU would be a hindrance at all.
Hope that helps!

This didnt work for me in the latest SuperXE ROM.
My phone went bootlooping.

Also, install via TWRP not Magisk. That's what's working for me. Good luck now!
I'm on superxe room myself. Other versions made me bootloop. Make sure you download DolbyAtmos_Axon7_Oreo_20180125.zip. That's the one that's working for me.
Best of luck!

How do we know if dolby atmos is enabled after downloading viper and this mod?
I downloaded the zte axon 7 unity version and flask in magisk but got force close every time i open the dolby atmos app. Is that the one you uses?

I never got any of the Dolby modules to work for me through Magisk. Maybe some have, but I did not.
Instead i installed this particular zip version with my recovery TWRP (not Magisk) and it is working fine. Make sure you install by booting into recovery, then installing it via TWRP.
Make sense? ?

Anyone had luck on lineage 15.1????
Is it working on Oreo ? Did anyone found any difference in audio quality???

Does not work still. Maybe bc my rom has an audio effect built in already? Im using RR neo angler remix . It has audiofx in

1959guy said:
Also, install via TWRP not Magisk. That's what's working for me. Good luck now!
I'm on superxe room myself. Other versions made me bootloop. Make sure you download DolbyAtmos_Axon7_Oreo_20180125.zip. That's the one that's working for me.
Best of luck!
Click to expand...
Click to collapse
Can you tell if it works on android 8.1, and what is the advantage of using this module? Improves sound quality of the speakers and headset?

rafael.rm.moreira said:
Can you tell if it works on android 8.1, and what is the advantage of using this module? Improves sound quality of the speakers and headset?
Click to expand...
Click to collapse
Working perfectly on latest lineage os 15.1......on normal speakers I didn't find much difference but headset definitely has a difference. The audio quality is superb....not placebo......... Working perfectly!!!!!!

sethukrishnan said:
Working perfectly on latest lineage os 15.1......on normal speakers I didn't find much difference but headset definitely has a difference. The audio quality is superb....not placebo......... Working perfectly!!!!!!
Click to expand...
Click to collapse
how did you get it working on Lineage 15.1 am having trouble with it here.

NingaR said:
how did you get it working on Lineage 15.1 am having trouble with it here.
Click to expand...
Click to collapse
What hapnd ???

I have nexus 6p w/SUPERXE-8.1.0 and Magisk
This Dolby works for me (DOLBY-AXON7-Oreo-Unity2.20.18.zip
Thanks very much for the work you have done

I'm glad it's working for folks! I'm enjoying it. Viper as well!

Please let me know if it doesn't work for you and I'll do what I can to help.
It's working with Viper4android, too!

I see some are having trouble getting this to work. Please comment and I'll try to do what I can to help. Thanks!!

Will this work on my 6p running Resurrection Remix Oreo? And how do i install viper4android? RROS comes with audiofx but its not all that good at times.

I have no reason to believe that it would not work.
I personally installed this module through TWRP. Not Magisk. But I did install Viper FX through Magisk. Both are working.
Anything else that I can do to help, I would be glad to try. Thank you. Sincerely.

Bootloop with stock oreo 8.1 march update, after flashing DolbyAtmos_for_Oreo_20180219.zip thu TWRP