Viper4Android MTCD Discussion - MTCD Android Head Units General

Okay wanted to make a thread specifically for sharing V4a settings profiles irs etc
v4a is the best sound mod for our units since we don't have to make hardware modifications to be able to have subwoofer controls etc.
This thread is to serve the purpose of creating a space for those using V4A with car audio systems as the threads for V4a don't really address car audio much.
Before I install V4a I flash the XtremeBeats Aural Maximizer 2 zip https://forum.xda-developers.com/showthread.php?t=2634729
for V4a I use ARISE Sound Systems zip package, which includes V4a and other sound add-ons, I flash it via FlashFire
https://forum.xda-developers.com/android/software/r-s-e-sound-systems-auditory-research-t3379709
Sometimes it works better if you extract the v4arise 2.3.4.0 version (that's the best one due to the sound driver is superior than 2.5.0.5 or 2.4.0.1)
I have 13 kicker speakers including a 10'' kicker free air sub.
Here are my Settings for V4A
Enable & Force Enable are both checked
Playback Gain Control is enabled, effect is sight, strength is 4x, Max Output is at -3db
Spectrum Extension is enabled, strength is at .5 (great for spotify streaming)
Convolver - IRS is Samsung SoundAlive Clarity - Cross Channel is @ 15%
Dynamic System enabled , device is high end headphone v2 , dynamic bass @ 15%
Viper clarity enabled , cclarity mode is natural, set at 6db
All the IRS files I have loaded are located in zip attachment.
It sounds amazing now
I am playing around with listening device settings to see if i can find a compatible setting too

masri1987 said:
Okay wanted to make a thread specifically for sharing V4a settings profiles irs etc
v4a is the best sound mod for our units since we don't have to make hardware modifications to be able to have subwoofer controls etc.
Click to expand...
Click to collapse
First check your MCU and Android version from manufacturer is up-to-date - as some introduced sub control in updates. E.g. JY from MCU v.1.90

marchnz said:
First check your MCU and Android version from manufacturer is up-to-date - as some introduced sub control in updates. E.g. JY from MCU v.1.90
Click to expand...
Click to collapse
running 2.0-1 MCU and sub controls do not work.
Hardware modifications are needed for them to work from all my research so far, unless you have something up ya sleeve

masri1987 said:
running 2.0-1 MCU and sub controls do not work.
Hardware modifications are needed for them to work from all my research so far, unless you have something up ya sleeve
Click to expand...
Click to collapse
Works just fine in my experience on JY-UL135. UI provides sub control which works with the correct MCU - JY 1.90 or greater. Nothing wrong with hardware control either - on these units if sub control isnt supported by the MCU, v4a control is limited to android apps, i.e. radio unaffected.
Please share your research.

marchnz said:
Works just fine in my experience on JY-UL135. UI provides sub control which works with the correct MCU - JY 1.90 or greater. Nothing wrong with hardware control either - on these units if sub control isnt supported by the MCU, v4a control is limited to android apps, i.e. radio unaffected.
Please share your research.
Click to expand...
Click to collapse
Regardless of the MCU (i have a gs unit), the sub controls do not work period.
Maybe it's due to my setup, i have a 16 channel, harmon kardon amplifier...
V4A is processing on all applications OEM and aftermarket.

Do I have the steps correct??
1. Boot recovery
2. Install Aural Maximizer zip
3. Boot normal, make sure settings take effect
4. Boot recovery
5. Instal V4A arise zip
6.....
7. Profit

no , do this
1) root or be on malaysk rom
2) install flash fire
3) via flashfire flash aural maximizer zip
4) reboot test it out
5) either flash the v4a zip or extract the apk and isntall it as a user app and reboot
6 profit
ericcire said:
Do I have the steps correct??
1. Boot recovery
2. Install Aural Maximizer zip
3. Boot normal, make sure settings take effect
4. Boot recovery
5. Instal V4A arise zip
6.....
7. Profit
Click to expand...
Click to collapse

Does flash fire depend on Google play services or similar? I was able to install the apk, however when selecting the flash fire icon, it would try to open the program and then immediately quit.
Tried both .24 and .2 flash fire.
I have the MTCD_KGL with the malaysak rom flashed

ericcire said:
Does flash fire depend on Google play services or similar? I was able to install the apk, however when selecting the flash fire icon, it would try to open the program and then immediately quit.
Tried both .24 and .2 flash fire.
I have the MTCD_KGL with the malaysak rom flashed
Click to expand...
Click to collapse
i don't know, my google play services aren't disabled. re-enable it and retry

Thanks for sharing, but where to put the IRS files in your .zip attachment?

here is johnny said:
Thanks for sharing, but where to put the IRS files in your .zip attachment?
Click to expand...
Click to collapse
go to your internal flash storage, Viper4Android\Kernel
put it in the kernel folder

masri1987 said:
go to your internal flash storage, Viper4Android\Kernel
put it in the kernel folder
Click to expand...
Click to collapse
Thnx, I'm gonna try it tomorrow combined with Malaysk V10 rom.

has anyone found a viper ddc to work with car speakers?

I have to open viper every time I turn on my car to get the audio processing to kick in, once I do that it works just fine, until I turn off the car and turn it on again. Do I need to convert it to a system app for it to start automatically? Have the Bonroad 7" Intel Sofia off aliexpress.

carrsteven said:
I have to open viper every time I turn on my car to get the audio processing to kick in, once I do that it works just fine, until I turn off the car and turn it on again. Do I need to convert it to a system app for it to start automatically? Have the Bonroad 7" Intel Sofia off aliexpress.
Click to expand...
Click to collapse
If you install it as a user app, and lock effect mode and show notification it will process normally upon boot.
When you flash it via fireflash for some reason it then does not process until you open it and uncheck and re-check enable.

make sure you have busybox installed and updated too!

has anyone found any good IRS files that they can recommend? i'm always looking for more.

has anyone played with any more IRS files or setups?

Does flashing ARISE zip with FlashFire installs ALL the modules? I only need V4A

Orisai said:
Does flashing ARISE zip with FlashFire installs ALL the modules? I only need V4A
Click to expand...
Click to collapse
The Aroma installer gives you the options to install whatever you want.
I go with the 2.3.4.0 version because of the superior audio driver.

Related

Viper4Android on Nexus 9

I've searched all forums for a solution to make Viper4Android work on Nexus 9.
None has been working for me without killing Chromecast support.
So I've made two solutions to make it work:
TWRP, Root and Busybox is required!
As system app:
In TWRP install V4A_2.3.3.0_[Quality].zip
Boot Android and open V4A
(Uninstall and) Install driver
Reboot Android
As normal app:
In TWRP install V4A_Conf.zip
Boot Android
Install SELinuxModeChanger and set it for "Permissive" mode
Install V4A
Open V4A and install driver
Reboot Android
I've testet with Google Music and Wimp.
PLEASE hit thanks if this helps you!
If you're on another Lollipop device the tricky part in making the V4A driver stick, is to manually edit the audio_effects.conf on the "Vendor" partition. V4A only writes to the system audio_effects.conf.
trackloading said:
I've searched all forums for a solution to make Viper4Android work on Nexus 9.
None has been working for me without killing Chromecast support.
So I've made two solutions to make it work:
TWRP, Root and Busybox is required!
As system app:
In TWRP install V4A_2.3.3.0_[Quality].zip
Boot Android and open V4A
(Uninstall and) Install driver
Reboot Android
As normal app:
In TWRP install V4A_Conf.zip
Boot Android
Install SELinuxModeChanger and set it for "Permissive" mode
Install V4A
Open V4A and install driver
Reboot Android
I've testet with Google Music and Wimp.
PLEASE hit thanks if this helps you!
Click to expand...
Click to collapse
sweet i was looking in the viper4android main thread..i saw ur post. with link.. now i could install viper on my N9..
one question... its better if i flash into system app correct??
Lw00d said:
sweet i was looking in the viper4android main thread..i saw ur post. with link.. now i could install viper on my N9..
one question... its better if i flash into system app correct??
Click to expand...
Click to collapse
That's the one I'm using, so I don't have to be in permissive mode...
I'm getting " unfortunately V4a has stopped" after flashing super quality on Lollipopalooza Rom. any suggestions?
dom2684 said:
I'm getting " unfortunately V4a has stopped" after flashing super quality on Lollipopalooza Rom. any suggestions?
Click to expand...
Click to collapse
I got a similar response with the pure AOSP build, but not with these zips. I used the zips mentioned in the Q&A V4A thread. I think this only works with stock?
igothacked1 said:
I got a similar response with the pure AOSP build, but not with these zips. I used the zips mentioned in the Q&A V4A thread. I think this only works with stock?
Click to expand...
Click to collapse
Ahh gotcha thanks
this work great for me..
what are some preferred settings??
I got around to flashing the Super Quality zip and the V4A_conf.zip on the pure AOSP build. NuPlayer in Dev options is disabled and I'm running SELinux in permissive mode. I still can't get the driver to stick.
igothacked1 said:
I got around to flashing the Super Quality zip and the V4A_conf.zip on the pure AOSP build. NuPlayer in Dev options is disabled and I'm running SELinux in permissive mode. I still can't get the driver to stick.
Click to expand...
Click to collapse
I had to edit the audio_effects.conf file in the Vendor folder to get the driver to stick. Add the lines in Step 6 of the following link: http://www.hacktabs.com/how-to-impr...ity-with-viper4android-audio-drivers-effects/
Leave out the lines for xhifi and look at the screenshot for the location in the file to add the lines.
After you do this, try to add the driver again, then restart.
cor_mann said:
I had to edit the audio_effects.conf file in the Vendor folder to get the driver to stick. Add the lines in Step 6 of the following link: http://www.hacktabs.com/how-to-impr...ity-with-viper4android-audio-drivers-effects/
Leave out the lines for xhifi and look at the screenshot for the location in the file to add the lines.
After you do this, try to add the driver again, then restart.
Click to expand...
Click to collapse
I reverted to a backup before I flashed the Super Quality zip.
Which vendor folder? The /system/vendor/ folder that the driver creates or the /vendor/ folder in root? And the .conf file in /system/vendor/ already contains those lines. Even then, the driver won't stick.
If this provides more information, I'm using Dilligaf's kernel. But I'm positive that wouldn't affect the driver installation.
EDIT: Got it. I copied the audio_effects.conf in the /system/vendor/ folder and replaced the one in the /vendor/ folder. Driver sticks now
igothacked1 said:
I reverted to a backup before I flashed the Super Quality zip.
Which vendor folder? The /system/vendor/ folder that the driver creates or the /vendor/ folder in root? And the .conf file in /system/vendor/ already contains those lines. Even then, the driver won't stick.
If this provides more information, I'm using Dilligaf's kernel. But I'm positive that wouldn't affect the driver installation.
EDIT: Got it. I copied the audio_effects.conf in the /system/vendor/ folder and replaced the one in the /vendor/ folder. Driver sticks now
Click to expand...
Click to collapse
Good to hear. I'm not sure why some people have to add the lines and others don't.
Hmmm... The /system/vendor folder is just a shortcut to the /vendor/ folder on my device, so it should be the same...?
I'm on pure stock and as I see the posts, the ones having problems is on other roms or kernels.
trackloading said:
Hmmm... The /system/vendor folder is just a shortcut to the /vendor/ folder on my device, so it should be the same...?
I'm on pure stock and as I see the posts, the ones having problems is on other roms or kernels.
Click to expand...
Click to collapse
You're right: I'm running Lollipopalooza ROM. That explains it.
Has anyone got convolver to work? The app sees all my irs files in the kernel folder, just has zero effect. Everything else works for me.
Swift keyed from my N9
mrshades812 said:
Has anyone got convolver to work? The app sees all my irs files in the kernel folder, just has zero effect. Everything else works for me.
Swift keyed from my N9
Click to expand...
Click to collapse
I haven't gotten mine to work either. I just noticed it. However, my Oneplus One has IRS working on 5.0.1. It could be how the driver is behaving?
trackloading said:
Hmmm... The /system/vendor folder is just a shortcut to the /vendor/ folder on my device, so it should be the same...?
I'm on pure stock and as I see the posts, the ones having problems is on other roms or kernels.
Click to expand...
Click to collapse
Igothacked said he was using my kernel/ramdisk, I'm not sure what ROM, but the kernel in my boot.img is completely stock, the only edits were to the ramdisk, and I'm positive that would not effect anything with this. I'm not sure about what Roms were being used, I guess it could make a difference, maybe permissions are slightly different or there is a difference with some symlinks with different roms and stock.
Thanks, also working on stock Acer A1-810 too.
I'm also running theLollipopalooza ROM and had to edit the file manually before the driver would install. All seems to be working fine now though. Thanks☺
Nevermind I re-read

Eonon GA5151F Mazda 3 Android Headunit

Hey guys,
Pretty new to the android headunits. Just got the Eonon GA5151F with android 4.4.4 installed in my Mazda 3 and it has been working pretty good.
Have been doing a bit of googling / searching around the forums on what rom's i can put on this unit and if i can do the mod where it lets you change the treble, bass, balance, fade, subwoofer etc etc.
Does anyone have any starting links that would get me going in the correct direction. All the posts I have found are for different models or MTU's.
The MTU for my unit is: MTCB-ZD-V2.68.
Thanks in advance!
Look on this thread and make sure you read b4 you try anything ?
http://forum.xda-developers.com/showthread.php?t=2660662
pcmender2005 said:
Look on this thread and make sure you read b4 you try anything
http://forum.xda-developers.com/showthread.php?t=2660662
Click to expand...
Click to collapse
Thanks mender!
I had a bit of a browser earlier to see what I could see. I came across another thread that you posted in regarding someone else with a Eonon headunit running the same MTU as me (MTCB-ZD-V2.68). The hardest part that I am having at the moment is trying to find what image would work with the MTU ZD. Looking through the thread you posted above, ZD isn't listed, I'm just praying i can either change the MTU and put a rom on or I can just change the rom straight out without flashing the MTU.
Thanks
prawln said:
Thanks mender!
I had a bit of a browser earlier to see what I could see. I came across another thread that you posted in regarding someone else with a Eonon headunit running the same MTU as me (MTCB-ZD-V2.68). The hardest part that I am having at the moment is trying to find what image would work with the MTU ZD. Looking through the thread you posted above, ZD isn't listed, I'm just praying i can either change the MTU and put a rom on or I can just change the rom straight out without flashing the MTU.
Thanks
Click to expand...
Click to collapse
I have the Eonon GA5151F model too, and you can flash the Malaysk custom rom under the HuiFei thread, post 1. It worked for me. It does not flash the MCU, just the rom. Warning: only flash the MCU with the correct version. As for stock firmware, I have read the you can use the Carjoying firmware, but I haven't tried it.
Malaysk Rom:
Select:
FILE REPOSITORY, FIRMWARES and MCUs for KGL/KLD/GS/RM/JY/MD under the post link above.
Show content
Click on Repository
firmware/
KK 4.4.4 MALAYSK Custom ROMS/
Malaysk Quadcore RK3188/
800x480/
19.10.2015/ (or newer release)
update_4_4_4_800X480_8_RK31..>
Save the file to a Fat32 usb drive, I tried a sdcard to it did not work.
To get into the Recovery Menu:
Use a paper-clip and press and hold the RES button by the eject button for 3 seconds.
Keep the RES button pressed and hold the power button for 3 seconds.
Release the RES button, keep power button pressed
Release the power button once the lights turn on.
Flashing the rom:
Malaysk Rom Only:
Wipe all the data/factory and cache reset.
Note: This will erase the flash memory and give 2 gb of instead of the 1 gb of factory application installation memory using the Malaysk Rom.
It will also delete the factory rom. No going back.​
Update system/mcu image from usb.
Once MALAYSK Custom is installed I would change the screen dpi to 180 under settings:
System
Lcd Density
Change density to whatever you like!
Select 180 (or your choice) and reboot
As for the sound mod, I am looking into it and may try it.
Justsaye said:
I have the Eonon GA5151F model too, and you can flash the Malaysk custom rom under the HuiFei thread, post 1. It worked for me. It does not flash the MCU, just the rom. Warning: only flash the MCU with the correct version. As for stock firmware, I have read the you can use the Carjoying firmware, but I haven't tried it.
Malaysk Rom:
Select:
FILE REPOSITORY, FIRMWARES and MCUs for KGL/KLD/GS/RM/JY/MD under the post link above.
Show content
Click on Repository
firmware/
KK 4.4.4 MALAYSK Custom ROMS/
Malaysk Quadcore RK3188/
800x480/
19.10.2015/ (or newer release)
update_4_4_4_800X480_8_RK31..>
Save the file to a Fat32 usb drive, I tried a sdcard to it did not work.
To get into the Recovery Menu:
Use a paper-clip and press and hold the RES button by the eject button for 3 seconds.
Keep the RES button pressed and hold the power button for 3 seconds.
Release the RES button, keep power button pressed
Release the power button once the lights turn on.
Flashing the rom:
Malaysk Rom Only:
Wipe all the data/factory and cache reset.
Note: This will erase the flash memory and give 2 gb of instead of the 1 gb of factory application installation memory using the Malaysk Rom.
It will also delete the factory rom. No going back.​
Update system/mcu image from usb.
Once MALAYSK Custom is installed I would change the screen dpi to 180 under settings:
System
Lcd Density
Change density to whatever you like!
Select 180 (or your choice) and reboot
As for the sound mod, I am looking into it and may try it.
Click to expand...
Click to collapse
Seriously thanks so much mate! It's good to no that you have done it and it worked good!
Is there anything that doesn't work afterwards?
prawln said:
Seriously thanks so much mate! It's good to no that you have done it and it worked good!
Is there anything that doesn't work afterwards?
Click to expand...
Click to collapse
The only problem it that the radio will lose your presets every time you restart you car.
Make sure to enable the xposed installer framework and the modules listed.
After that you can go the the XpoxedMTC, Radio Preset Settings, enable Use Custom Radio Presets, then Learn Radio Presets. You have to do this every time you add or modify a radio preset. Now every time you start your car the presets are loaded.
If you want better sound control, try using Viper4Andriod FX
Go to the download section and download ViPER4Android FX version v2.3.4.0 (Android 2.3~5.0): from the Mediafire.
Extract the zip file and install the ViPER4Android_FX_A4.x.apk
Select Super Audio Quality:
Install the driver
Go to the menu, Select UI Settings, Expert
Go to the menu, Lock Effect Menu
Select Headset.
Restart your radio.
Now you can go the Headset tab and Enable, and Force Enable V4A.
Experiment with the setting to your liking.
To autoload ViPER4Android FX on boot, Open the Startup Builder ( brown icon with PCV letters ) in the apps drawer.
Find ViPER4Android and enable it.
Click Build at the top
Click Deliver File on the next screen.
Reboot the system.
This will only effect android applications, not the radio, and not all applications. Some application have settings to disable their own EQs so look for those.
As for everything else, it works as it should.
Justsaye said:
The only problem it that the radio will lose your presets every time you restart you car.
Make sure to enable the xposed installer framework and the modules listed.
After that you can go the the XpoxedMTC, Radio Preset Settings, enable Use Custom Radio Presets, then Learn Radio Presets. You have to do this every time you add or modify a radio preset. Now every time you start your car the presets are loaded.
If you want better sound control, try using Viper4Andriod FX
Go to the download section and download ViPER4Android FX version v2.3.4.0 (Android 2.3~5.0): from the Mediafire.
Extract the zip file and install the ViPER4Android_FX_A4.x.apk
Select Super Audio Quality:
Install the driver
Go to the menu, Select UI Settings, Expert
Go to the menu, Lock Effect Menu
Select Headset.
Restart your radio.
Now you can go the Headset tab and Enable, and Force Enable V4A.
Experiment with the setting to your liking.
This will only effect android applications, not the radio, and not all applications. Some application have settings to disable their own EQs so look for those.
As for everything else, it works as it should.
Click to expand...
Click to collapse
Brilliant! Thanks heaps for this help eh! I'm going to give it a go tonight I think!
Let me know if you ever give the sound mod ago on our units. Would love to no if it worked and how hard it was
prawln said:
Brilliant! Thanks heaps for this help eh! I'm going to give it a go tonight I think!
Let me know if you ever give the sound mod ago on our units. Would love to no if it worked and how hard it was
Click to expand...
Click to collapse
I can tell that the mod is not that easy. I did the mod on another unit, the Pumpkin KD-C0255, same model as the Eonon GA2114. The instructions give by 7floor on this post do not work. Some of the connections were reversed. Once I get chance, maybe this weekend I do plan to do the mod on Eonon GA5151F. I will let you know how it goes. This mod does improve the sound and gives you better control.
Justsaye said:
I can tell that the mod is not that easy. I did the mod on another unit, the Pumpkin KD-C0255, same model as the Eonon GA2114. The instructions give by 7floor on this post do not work. Some of the connections were reversed. Once I get chance, maybe this weekend I do plan to do the mod on Eonon GA5151F. I will let you know how it goes. This mod does improve the sound and gives you better control.
Click to expand...
Click to collapse
All I seem to be stuck right at the beginning.
I don't seem to have the below option in recovery mode
"Wipe all the data/factory and cache reset"
prawln said:
All I seem to be stuck right at the beginning.
I don't seem to have the below option in recovery mode
"Wipe all the data/factory and cache reset"
Click to expand...
Click to collapse
Strange, the "wipe all the data/factory and cache reset" should be above the "recovery system from backup". (last option)
What recovery system version did yours come with? Mine is V4.4.42.
Try the "update/mcu image from the usb and clear all"
Justsaye said:
Strange, the "wipe all the data/factory and cache reset" should be above the "recovery system from backup". (last option)
What recovery system version did yours come with? Mine is V4.4.42.
Try the "update/mcu image from the usb and clear all"
Click to expand...
Click to collapse
I didn't even have that option. I did however have just "update/mcu image from usb" so I gave this ago.
Everything looks to have loaded ok but now i don't seem to be able to connect to GPS.
I can see it searching for satellites and find some but it doesn't actually connect to them.
Justsaye said:
Flashing the rom:
Malaysk Rom Only:
Wipe all the data/factory and cache reset.
Note: This will erase the flash memory and give 2 gb of instead of the 1 gb of factory application installation memory using the Malaysk Rom.
It will also delete the factory rom. No going back.​[*]Update system/mcu image from usb.
Click to expand...
Click to collapse
Is this part fairly self-explanatory once I boot into recovery?

[Q] Using Viper4Android with Poweramp on Stock Lollipop Rom

Hello, I've got a problem. I've rooted my LG G4 and now I´m on stock 10c version, bootloader is locked. I've changed SELinux to permissive and wanted to use Viper4Android with Poweramp. Viper4Android is working, besides I've tried this http://forum.xda-developers.com/lg-g2/general/guide-poweramp-viper4android-lollipop-t3133935 and this http://forum.xda-developers.com/lg-g2/general/guide-how-to-make-viper4android-lollipop-t3075794 and this http://forum.xda-developers.com/showpost.php?p=62107040&postcount=109, but I've not managed to get Viper4Android working with Poweramp. In FX compatible mode, it has just no effect, and in normal mode, it shows "Status: normal" and "Enabled: Yes", but "processing: no" in driver status. In Poweramp, DVT is disabled, in developer options, NuPlayer is disabled. So I have no idea what's wrong with this.
Has anyone an idea?
Edit: I've freezed the stock music app via Titanium Backup, so there should be no equalizer working, I think at least?
Man I m here with you.. I can't get it to work with poweramp either tried all those methods. The funny thing is it works with the stock music player, just not poweramp.
Edit: I tried the method mentioned from the first link that you have posted. This worked for me finally .
RogerF81 said:
Hello, I've got a problem. I've rooted my LG G4 and now I´m on stock 10c version, bootloader is locked. I've changed SELinux to permissive and wanted to use Viper4Android with Poweramp. Viper4Android is working, besides I've tried this http://forum.xda-developers.com/lg-g2/general/guide-poweramp-viper4android-lollipop-t3133935 and this http://forum.xda-developers.com/lg-g2/general/guide-how-to-make-viper4android-lollipop-t3075794 and this http://forum.xda-developers.com/showpost.php?p=62107040&postcount=109, but I've not managed to get Viper4Android working with Poweramp. In FX compatible mode, it has just no effect, and in normal mode, it shows "Status: normal" and "Enabled: Yes", but "processing: no" in driver status. In Poweramp, DVT is disabled, in developer options, NuPlayer is disabled. So I have no idea what's wrong with this.
Has anyone an idea?
Edit: I've freezed the stock music app via Titanium Backup, so there should be no equalizer working, I think at least?
Click to expand...
Click to collapse
Third (manual) method, which might work for other roms and even other phones:
- Download attached zip, extract files
- Using any file explorer (ie: Rootexplorer), go into /system/Priv-app and create a folder called V4A or Viper4Android. Place ViPER4Android_FX_A4.x.apk in this folder. While the folder isn't actually necessary, it's cleaner than just leaving the .apk inside /priv-app/
- Go into /system/media/etc and do a backup of audio_policy.conf
- Open up audio_policy.conf using a text editor, and delete the following code:
Code:
deep_buffer {
sampling_rates 44100|48000
channel_masks AUDIO_CHANNEL_OUT_STEREO
formats AUDIO_FORMAT_PCM_16_BIT
devices AUDIO_DEVICE_OUT_SPEAKER|AUDIO_DEVICE_OUT_EARPIECE |AUDIO_DEVICE_OUT_WIRED_HEADSET|AUDIO_DEVICE_OUT_W IRED_HEADPHONE|AUDIO_DEVICE_OUT_ALL_SCO|AUDIO_DEVI CE_OUT_AUX_DIGITAL|AUDIO_DEVICE_OUT_PROXY|AUDIO_DE VICE_OUT_ANLG_DOCK_HEADSET|AUDIO_DEVICE_OUT_FM|AUD IO_DEVICE_OUT_FM_TX
flags AUDIO_OUTPUT_FLAG_DEEP_BUFFER
}
Click to expand...
Click to collapse
- Reboot
- Go into Viper settings app
- Install required driver
- Go into poweramp -> settings -> audio -> advanced tweaks -> Disable DVT (Direct volume control)
- Reboot
Yeah, now the first method worked for me finally too, but...! Now Android OS drains significant much more battery than before and that's why it's not a solution for me and I will abstain from using Viper4Android on Stock Rom until my guarantee expires, so I have to wait for more than a year and a half
RogerF81 said:
Yeah, now the first method worked for me finally too, but...! Now Android OS drains significant much more battery than before and that's why it's not a solution for me and I will abstain from using Viper4Android on Stock Rom until my guarantee expires, so I have to wait for more than a year and a half
Click to expand...
Click to collapse
I dont have this issue. Atleast not yet, were u using the Super high quality more( or something like that)?
also i don't think root voids u r guarantee, but its ur choice
Ok then I don't know what I am doing wrong... No I have just the High Quality Mode. Auf oh I have root but when I don't have guarantee any more, I consider to install another ROM
Respectively, on MM it's not possible to root withoout unlocking bootloader :/
Use Link2SD and convert V4A to a System App. Now it should work fine with Poweramp.

Viper4Android on the max

Hi to all. I manage to install viper4android on my new mi max. But the problem is i cannot find a way to disable xiaomi's dirac or headphone sound effects. I manage to disable musicfx but i cannot find audiofx(xiaomi's headphone effects). If using phones speaker or bluetooth viper is working properly . But i plug on any headphones the dirac or headphone effect will activate and viper will not work. Any one manage to fix this headphone effect?
Thanks
Update: i manage to install v4a and working 100%
Steps:
-must be rooted with superSu
-install v4a via twrp (flashable v4a)
-install busybox (after install, reboot)
-find musicfx in settings/installed apps/musicfx and disable it, then reboot
-install SELinuxMode changer set to permissive
-run/open v4a and let it install drivers. After that reboot.
-open music player, open v4a. Ignore the processing : NO
-on v4a open Lock effect mode and adjust the settings to your preferences. Close.
-clear all on your task manager and open music player(play a song), open v4a and on lock effect mode choose disabled, now v4a is working on both on headphones and bluetooth etc.
How were you able to root?
Sent from my MI MAX
Link to download this viper?
gejenn said:
How were you able to root?
Sent from my MI MAX
Click to expand...
Click to collapse
By flashing the SuperSU in TWRP (probably unlocked bootloader, that's how I have done)
SuperSu doesn't unlock bootloader... I wish it was that simple... Only disables encryption verify at boot for system and userdata.
gejenn said:
How were you able to root?
Sent from my MI MAX
Click to expand...
Click to collapse
Firstly unlock mi max via xiaomi request so that you can install recovery. I root it via twrp by installing supersu
viper4Android 2.5.0.5?Close the selinux
link or files?
can you provide files please ? it will be nice if you provide us links or files
Not able to set the selinux, and I have installed the apk not the zip file, since I am not able set the selinux I am not able to install the drivers any help would be appreciated, Thanks.

[MOD][AUDIO] ROOT: Viper4Android

I love Viper, but sometimes I just thought I could get more out of it. Thanks to user @Craz Basics we can add some MODs to V4A, if you have root and are using the Fire Nexus ROM. I did not create these mods, nor do I take credit for them. I just confirm they work on Lollipop 5.1.1 and above or custom ROMs based on that version and above.
You can get the full details, download links and changelog here. Be sure to tap the thanks button for HIS profile, not mine.
REQUIREMENTS:
1) ROOTED Amazon Fire 7
2) Custom ROM (Fire Nexus ROM in this case, though it might work on stock, rooted Fire 7s, but hasn't been tested on them)
3) FlashFire
MODs Available -
- Viper4Android 2.3.4.0
- Viper4Android 2.5.0.5
- Viper|Atmos 4.8.1 Sony Beats Edition
- Viper|Dolby Digital +
Instructions -
**If you already have V4A installed, it is recommended you uninstall it and reinstall version 2.3.4.0 from the Aroma installer during flashing)**
- Download the Experience_Sound.zip (located here)
- Download, install and open FlashFire. Tap the '+' and select flash zip and make sure 'mount system' is the only box checked. Tap '+' select wipe and make sure ONLY dalvik and cache partition are selected. (This is my recommendation).
- Move wipe by long pressing it, above the zip file
- Tap Flash.
NOTE: As of this posting, the installer is designed for smaller screens, so the touch is a bit off. You will have to tap 'next' on the bottom, right of the button. The same goes for any selections you want to make, except for the agreement. Lightly tap the box to agree, in the upper left area. This can be an annoying process the first time.
DragonFire1024 said:
I love Viper, but sometimes I just thought I could get more out of it. Thanks to user @Craz Basics we can add some MODs to V4A, if you have root and are using the Fire Nexus ROM. I did not create these mods, nor do I take credit for them. I just confirm they work on Lollipop 5.1.1 and above or custom ROMs based on that version and above.
You can get the full details, download links and changelog here. Be sure to tap the thanks button for HIS profile, not mine.
REQUIREMENTS:
1) ROOTED Amazon Fire 7
2) Custom ROM (Fire Nexus ROM in this case, though it might work on stock, rooted Fire 7s, but hasn't been tested on them)
3) FlashFire
MODs Available -
- Viper4Android 2.3.4.0
- Viper4Android 2.5.0.5
- Viper|Atmos 4.8.1 Sony Beats Edition
- Viper|Dolby Digital +
Instructions -
**If you already have V4A installed, it is recommended you uninstall it and reinstall version 2.3.4.0 from the Aroma installer during flashing)**
- Download the Experience_Sound.zip (located here)
- Download, install and open FlashFire. Tap the '+' and select flash zip and make sure 'mount system' is the only box checked. Tap '+' select wipe and make sure ONLY dalvik and cache partition are selected. (This is my recommendation).
- Move wipe by long pressing it, above the zip file
- Tap Flash.
NOTE: As of this posting, the installer is designed for smaller screens, so the touch is a bit off. You will have to tap 'next' on the bottom, right of the button. The same goes for any selections you want to make, except for the agreement. Lightly tap the box to agree, in the upper left area. This can be an annoying process the first time.
Click to expand...
Click to collapse
Not my mods mate, but thanks
Sent from my SM-G935U using XDA Labs
does it work on the Fire HD 10 2017 running rooted Fire OS 5.6.0.0?
freaky2xd said:
does it work on the Fire HD 10 2017 running rooted Fire OS 5.6.0.0?
Click to expand...
Click to collapse
Unknown. No one has tried yet. Flash with FlashFire
DragonFire1024 said:
Unknown. No one has tried yet. Flash with FlashFire
Click to expand...
Click to collapse
tested and worked with SElinux set to permissive
super high audio quality mode
there is an improvement in sound quality, but not as much as with smartphones like the Xperia Z5 or Oneplus 5
freaky2xd said:
tested and worked with SElinux set to permissive
super high audio quality mode
there is an improvement in sound quality, but not as much as with smartphones like the Xperia Z5 or Oneplus 5
Click to expand...
Click to collapse
Install along with a volume booster. Goodev works great on these tablets.
Heads up: This can be controlled, albeit confusingly, using the hardware buttons.

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