[APP][ALL ROOT SOLUTIONS][6.0+]ViPER4Android FX 2.7

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kenny.lam

Senior Member
Dec 19, 2014
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0
Dear,

The new version 2.7.1 look not be recognized on Xiaomi mipad 4 plus - latest Havoc rom - rooted device, please help me, I also install "Audio Modification Library" from Magisk Manager, Viper is not recognized as Magisk Module, does not load the driver and nothing happen, thank much for help !!!

Kenny
 

Dioser

Senior Member
Oct 20, 2010
1,564
422
113
Dear,

The new version 2.7.1 look not be recognized on Xiaomi mipad 4 plus - latest Havoc rom - rooted device, please help me, I also install "Audio Modification Library" from Magisk Manager, Viper is not recognized as Magisk Module, does not load the driver and nothing happen, thank much for help !!!

Kenny
There's a lot of trouble with v4a on Havoc. Nothing new. Change rom.
 

Sanabil

Senior Member
Oct 27, 2014
211
71
0
Lahore
Running Android n7.1 rooted using magisk with elemental x kernel on nexus 6.
It installs and works fine using Google play music. But it is not processing audio played via YouTube. What could be the fix?
Can anyone assist?
Thanks
 

Dioser

Senior Member
Oct 20, 2010
1,564
422
113
Running Android n7.1 rooted using magisk with elemental x kernel on nexus 6.
It installs and works fine using Google play music. But it is not processing audio played via YouTube. What could be the fix?
Can anyone assist?
Thanks
Try install acp from magisk repo
Or try switch compatibility mode in settings./ Attach audio effect
 
Last edited:

Dioser

Senior Member
Oct 20, 2010
1,564
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I mean the module does that when being installed via Magisk. Is there a way to fix that?
If you use v4a 2.7.1 from here? There's no installer for magisk. It's within the app itself. The installer. Just install as normal apk, open, let driver install, reboot, profit.
Otherwise. Use Zack's new likewise 2.7.1 from magisk repo.

And. Yes support for magisk prior to 19 has stopped. Says so in release notes. 19.2 latest stable.
 
Last edited:

refi64

Senior Member
Nov 25, 2013
82
119
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refi64.com
I updated magisk to 19.2 and now everytime I try to run the app, it asks to install the driver

I tried to revert to 19.1 but now it does not work anymore...

How can I install the driver? (I'm on android 8.0, LG V30)

Edit: solved using version 2.7.0.0. Something is messed up with the driver ibstallation in version 2.7.1.0. It has nothing to do with magisk, I'm running 19.2

Do you have the 2.7.0.0 APK? I can't seem to find it anywhere and I've run into the same problem (Pixel 2, on Q Beta).
 

refi64

Senior Member
Nov 25, 2013
82
119
0
refi64.com
I updated magisk to 19.2 and now everytime I try to run the app, it asks to install the driver

I tried to revert to 19.1 but now it does not work anymore...

How can I install the driver? (I'm on android 8.0, LG V30)

Edit: solved using version 2.7.0.0. Something is messed up with the driver ibstallation in version 2.7.1.0. It has nothing to do with magisk, I'm running 19.2

Sure, here you have
Thanks! After a couple of reboots and toggling Audio Modification Library I've got it to work for around 10min on boot which is good enough for now (going to chalk up it failing afterwards as a Q beta issue).
 

joluke

Senior Member
Jan 29, 2014
1,685
719
133
Can you guys fix the download for the module?

https://zackptg5.com/testbuilds/v4afx.apk

This link inside the install script can be accessed inside chrome and the file is downloaded without any problem.

Inside magisk manager the module can't be flashed because of the said link.

Can you guys use github for example? Most likely it's due to a timeout on fetching the said apk
 

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  • 2
    I'm not sure if it was mentioned in this thread already, or if this is the right thread for my question, if not please re-direct me to the correct one. I believe I have no other audio modifications in place as I installed and then removed "Ainur Narsil", which should supposedly leave me with "pure" audio. Viper is working, but only with some apps, with others (like mpv, bromite, simple clock and probably others, which I have not tried yet), sometimes I get audio, but not modified through Viper, other times I get no audio from these apps at all, from the basic troubleshooting I've done, it seems that this is caused by wheter I turn the Master Limiter option on before I launch one of the said apps or if I do so, but afterwards. The latter results with me getting un-modified audio and "Processing: no", and the former results in getting no audio and "Processing: Yes", but when I turn on the notifications, no "Proccessing 'x' "popup can be seen. Some apps, like NewPipe and MusicPlayerGo work fine. Installing the Magisk module "Audio Compatibility Patch" did not work.

    I'm on LG V20 F800 (dirty santa'd into US996) with x86 LOS 17.1 for 996, with 3.18.71 Gamma Kernel.
    Viper>
    Driver version: 2.5.0.4
    NEON enabled: Yes
    Enabled: Yes
    Status: Normal
    Audio format: Supported
    Processing: yes/no (based on what I described earlier)
    Sampling rate: 48000

    If you need any logs and such, I'll be sure to try and provide them. A possible solution would very much be appreciated.
    Simple - some postings before I linked the older v2.7.1.6 - uninstall your latest Viper-version, install the older 2.7.1.6. Works as it should without any big problems.

    After this avoid an update. xxxxxx

    Mod Edit: Disrespect
    2
    After a couple of days, it just stops working and then I have to go to settings and disable and enable legacy mode and it starts working again until the next time.
    Same for me, each time the processing status is no and I have to toggle off and on the legacy mode to have it processing again.
    2
    Mod Edit: Quote removed since post deleted

    App is not broken, it's how Android 10/11 handles audio sessions and equalizer apps. Just because you don't understand it doesn't mean it's "defect".

    "Hack" is only fix for recent Magisk versions and "fallback" legacy mode works perfectly fine system wide even in Android 10/11.
    1
    Simple - some postings before I linked the older v2.7.1.6 - uninstall your latest Viper-version, install the older 2.7.1.6. Works as it should without any big problems.

    After this avoid an update. xxxxx Mod Edit: Disrespect


    Thank you, and sorry for bothering you with a question that would have been answered if I had simply skimmed through the last ~5 pages of this thread. Everything I tested so far works well.
    1
    What are the mods here doing???

    Delete this 2.7.2.* update please! Its the source of all problems here....why do the mods watch this since months and doing nothing?

    Unbelieveable in my opinion whats going on here....more than 20 pages just because noone is willing to remove a defect update...
    Well buddy, not everybody would agree with your opinion.
  • 519
    ViPER4Android FX
    YF7EJvAcFH9ZuuytKO91DimKH-TQUvYOaA-gmdBrioXY-LSgtjoadLI17gtaGgIkR6KBXyVA4IXtcdjfLdQ=w2880-h1608

    By pittvandewitt and MrWhite214

    Introduction
    Many users are enhancing their smartphone audio experience with the popular ViPER4Android software, but some of us have a hard time installing the driver or they don't like the look of the app. As a solution for these troubles we have rewritten the 2.4.0.1 app source and added all 2.5.0.5 features to it. Many more features have been implemented too.
    With our huge success of ViPER4Android 2.6 we decided to completely rewrite the ViPER4Android app in Kotlin. This allowed us to squeeze out the remaining bugs and clean up the code even more. After a long time of waiting for you and developing for us, ViPER4Android 2.7 is finally here!
    There are many new features and improvements compared to 2.6, of which some can be found in the changelog. Hit the download button to check it out yourself!

    Downloads
    You can download the latest version on XDA Labs
    If you were pointed here for the installer by @Zackptg5, the link can be found here

    pittvandewitt's vdc service
    If you've always wanted to get the most neutral and arguably best sound coming from your headphones, make sure to join the VDC service to request a file!

    Donate
    You can donate to us via PayPal or buy our donation package from XDA Labs with extra features!
    Donate via PayPal
    Buy our donation package *coming soon*

    Dev Note
    If you want to include the app in your work, you're free to do so as long as you give proper credits

    Legal notice
    We are not associated with vipersaudio nor audlabs.
    Stating their Github readme we're free to use the driver as long as it's not used commercially.
    The driver parameters are obtained from the 2.4.0.1 source. The graphical EQ interface is inspired by the Cyanogenmod DSP application
    The app is still named ViPER4Android, because the driver isn't any different from what ViPER ACOUSTIC provides.
    Renaming it without changing anything would be considered kanging, which is not what is going on here.

    Credits
    ViPER ACOUSTIC for the driver
    Bappo for Swedish translation
    pittvandewitt for Dutch translation
    sazuke0703 for Thai translation
    R1DEN for Russian translation
    Hede for Danish translation
    gloeyisk for Indonesian translation
    LCS for Chinese simplified and traditional translations
    razor84 for Turkish translation

    Installation
    Download and install the APK from XDA Labs
    Follow the instructions when opening the app

    XDA:DevDB Information
    ViPERAndroid, App for the Apps & Games

    Contributors
    Team_DeWitt, pittvandewitt, Mr_White_214

    Version Information
    Status: Stable
    Current Stable Version: 2.7.2.1
    Stable Release Date: 2020-10-27

    Created 2018-04-09
    Last Updated 2020-10-27
    131
    Currently on the wishing list
    • Car mode / head unit detection
    • More translations. If you're interested, take a look over here to find the files. Fork the repo and make a pull request to get your translation merged in next release!
    • EMUI (Huawei) 8.0+ refuses to load the driver. Ask ViPER ACOUSTIC for a 64bit driver (Can't fix)
    • Updated driver that does not require selinux injections or the libstdc++ dependency workaround (Can't fix)

    Before reporting:
    Make sure you use the latest APK provided on XDA Labs
    Make sure any other audio mod is disabled/removed before installing the driver. We really cannot afford fixing every single device setup, especially when it's not related to the app


    If you would like to report a bug, pm @Team_DeWitt using the following format:
    [Describe the problem and your steps you take to reproduce it]
    [Phone brand and model]
    [OS (ROM) + Android version]
    [Root method (in case of magisk: core or full)]
    [Provide a link to your log file]
    115
    Changelog

    2.7.2.1
    • Improved loading logic for convolution files
    • Fixed an issue when installing the module on older Magisk versions
    • Bug fixes
    • Stability improvements


    2.7.2.0
    • Android 11 support
    • Automatically save/restore settings based on the device type/name
    • Add preset widget
    • Reworked presets
    • Performance improvements
    • Close service when no music playback is active if legacy mode is disabled
    • Add optional crashlytics to help improving future versions

    2.7.1.6
    • Support Magisk 20.3
    • Long press a feature to show description
    • Material theme update
    • Support scoped storage on Android 10+ (Preset dir is now /sdcard/Android/data/com.pittvandewitt.viperfx/files/Preset)

    2.7.1.0
    • Support Magisk 19
    • Add compatibility setting
    • Add ability to attach to sessions
    • Fix preset loading bug
    • Switch from setools to magiskpolicy
    • Important release notes: Link

    2.7.0.0
    • Full rewrite in Kotlin
    • New UI
    • Presets can be managed in the app itself
    • Effects can be set more precisely with seekbars
    • Min API 23
    • Uses 2.5.0.4 driver only
    • Audio routing bug fixed
    • Driver status bug fixed
    • Cross device effect changing bug fixed
    • App follows system dark/light mode (can be toggled with google messages e.g.)
    • Installation is faster and more versatile
    • Notification settings
    • Reduced APK size significantly

    2.6.0.5
    • Add app shortcuts (7.1+)
    • Minor interface redesign
    • Fix muffled sound
    • Fix options not applying
    • Fix profile conversion
    • Introduce vdc service
    • Improve performance
    • Update driver installation
    • Update chinese translations, thanks to KiSS

    2.6.0.4
    • Retain service after clearing recents
    • Emergency service.sh fix
    • Support Magisk core mode
    • Fix profile load loop
    • Recover speaker service
    • Fix convolver
    • Support Pixel devices
    • Use su.d if possible
    • Force global effect mode
    • Add Korean translation by @nebulac

    2.6.0.3
    • Fix /system install and uninstall.
    • Add temporary workaround for the convolver
    • Updated strings

    2.6.0.2
    • Fix FC while installing the driver
    • Add root check before installing the driver
    • Removed lucky patcher check
    • Capitalized driver status outputs
    • Updated strings

    2.6.0.1
    • Fix profile loading
    • Fix assets bug
    2.6.0.0
    • Initial Release
    101
    2.7.1.0 released

    Yay it's finally time to release an update

    And with this release come a few important release notes:
    Support for Magisk prior to v19 is dropped.
    If you did not use magisk, you need to reflash your /system partition and reinstall the driver
    An audio attach setting is added too to improve compatibility and it needs some explanation:
    For every time you play a song, the audio player should send information about what session the audio is played on, so equalizer apps can attach to that session.
    Session 0 is the default but deprecated session. Most of the time V4A processes just fine at session 0, but if it doesn't you can enable this switch and Viper will attach to other sessions. Note that if you don't have any session open, the driver status will say abnormal, which makes sense.
    There is the need for a switch, because in a lot of cases audio players do NOT send the information when a session is closed. So they keep the driver occupied and this mutes all other audio streams, including session 0 which is the fallback session.
    To make this problem a bit less bad, I excluded session 0. But when you still run into this problem, the solution is not to kill viper but to kill the audio app that was playing music previously.
    Bad design, I know. But it's not my fault. You should contact the developer of the music app to fix their crappy code and send a broadcast when audio playback stops/pauses.
    This switch makes ACP obsolete.

    Other things that have improved:
    I've seen multiple issues with android pie where the viper library wasn't detected any longer because a dependency is removed since the update. A workaround is shipped in the new release.
    The compatibility mode switch has been added back. This seems to be mandatory for car mode and some android q builds.
    An issue when loading presets has been resolved

    Download can be found on labs as always: Link
    89
    Answers to some related questions

    Help, the driver status says no
    • In case of Enabled: no; Please flip the Master limiter switch and go sit in a corner for a while
    • In case of Processing: no; If you use an application that uses audio sessions, enable session attaching in the settings. If that does not work, the audio is routed over session 0. You might want to try Audio Compatibility Patch from the Magisk repository in this case.

    What happened to the profiles?
    • They're now called presets. They are reworked to use independently per device, a feature that was very welcome. Because of many technical changes and improvements on how the preset is stored and loaded, they are not compatible with older versions than 2.7. You will have to recreate them by hand unfortunately. You can access the menu by pressing the selected device in case you missed the huge showcase when you first launched the app after installing the driver

    Why does your Magisk module not work?
    • Probably because you installed some other mod that also has an audio_effects file in it. Whatever module gets loaded last will become active
      The easiest way to bypass this is to let the app build a module after you installed all your favorite audio mods, and delete all files containing audio_effects in the other modules
      AudModLib will not come in handy this time, because the app doesn't flash a zip that AML can intercept

    Where can I find the source code?
    • You can't. And there is an obvious reason for that: This app is more sensitive to kangers who start selling this app, likely after adding their bullsh*t to it, rather than to people who actually want to help improve the app. Something like that already happened in the past to other audio software here on xda. Not really something we want to see happen again

    Where did the Selinux switch go?
    • What..? Are you really that careless security wise?
      The app handles this in a much more sophisticated way now. It injects only the absolute necessary rules to allow V4A to process, fully automatically

    Help, why do I still experience service drops?
    • Probably because doze is kicking in because Android doesn't like long running services. The service has been implemented the way the docs suggest. You can try excluding it from doze. Alternatively you can check out dontkillmyapp.com for tips

    Do you have a zip file for me?
    • No. There is no point in providing a zip file anymore. The driver installation is written from scratch and actually works now

    How do I uninstall the driver?
    • Use Magisk Manager to delete the module. If you use another root solution, you can dirty flash your rom or just leave it there
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