Question V4A (Viper4Android) on Pixel 7 Pro

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Lughnasadh

Senior Member
Mar 23, 2015
4,686
5,303
Google Nexus 5
Huawei Nexus 6P
thanks. downloaded jamesDSP and works fine. How can I get the best sound settings? Do you have any tips ?
There really is no such thing as "best" sound settings. Sound is very subjective. What sounds good to one person may sound bad to another. Also, music genre plays a roll in how you set your sound up, as well as the type of device you are listening through (e.g. one brand/model of earbud will sound different than another and therefore adjustments will have to be made to that specific earbud).

Best is to just play around with the settings until you come up with something you like.
 

rafik25

Senior Member
Apr 26, 2011
1,429
237
Ici et ailleurs la terre est si vaste
Thank you!! for the information...

Can I ask where you get the method to do it...

It's just that my English is very bad... and it's hard for me to understand?

There are 3 links... what is each one for and/or which one do I use?

Is there group Telegram or something similar?

Thank you

All the best
choose hotfix version to install and yes there is telegram group to help u
 
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antonio_d25

Senior Member
Aug 31, 2021
63
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Be on November stable firmware
It is suggested that you first run the stable flash all script, skip setup, reboot to bootloader. then fastboot set_active other, run the flash all again, then follow the instructions from this step below. *
reboot to recovery (when you get to the "no command" screen, briefly hold power, tap vol up to enter stock pixel recovery)

wipe data/factory reset

reboot to bootloader

fastboot update rom.zip
If I'm on December firmware would it be possible to go back to the Nov. one ?

Or would the ROM flash over the December stable firmware ?
 

Namorbrowneyes

Senior Member
Mar 25, 2011
221
64
OnePlus 7 Pro
Google Pixel 7 Pro
Wheres the official download for this?
Search in Fox's Magisk Manager
1000002467.png
 
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Curiousn00b

Senior Member
I'll try it and report back here. I ran Corvus for a while and that ROM comes with 32 bit support - I'm confident it works there like a few others have mentioned but never tried myslef
Decided to try it myself, figured it was about time to learn in case I ever needed a 32-bit app somewhere down the line. I at first glanced over the OP to the patch and figured it was too many words, but it was actually quite simple.

I currently use Spark as my daily, so I tested it out with that. I have 32-bit app support but Viper driver installation was still a no-go, so there's that bit of info to save you the time, unless you still want to try, lol.
 
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antonio_d25

Senior Member
Aug 31, 2021
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Decided to try it myself, figured it was about time to learn in case I ever needed a 32-bit app somewhere down the line. I at first glanced over the OP to the patch and figured it was too many words, but it was actually quite simple.

I currently use Spark as my daily, so I tested it out with that. I have 32-bit app support but Viper driver installation was still a no-go, so there's that bit of info to save you the time, unless you still want to try, lol.
Did you use the repackaged Viper or the default Viper?
 

Loustsoul

Senior Member
So I know we're still in the early stages of this device. But I just wanted to get a thread going for V4A on our device.

For those who came from the 6 Pro like I did, you're probably already aware of this, but for those who did not here's the current situation:

V4A was working fine on Android 12 but when Android 13 came around there were some issues. For most phones they got ironed out and at this point I think basically every other phone on A13 has V4A working EXCEPT for the Pixel 6/6 pro. I tried installing V4A myself on my 7 pro to no avail. I don't know much about the details of why it's not working or what's going on "underneath the hood" so to speak but I can only assume that whatever it is that's causing V4A to not work on my 7 pro is at least somewhat similar to the reason it doesn't work on the 6 pro. There are a few people trying to figure out the issue in a thread over in the 6 pro section on XDA which I will link here if you want to stay more up to date about what's going on:

https://forum.xda-developers.com/t/anyone-get-viper4android-worked-on-a13.4480467/

As a side note, I did manage to get JamesDSP to work on my 7 pro, which is an okay alternative for the time being. Not exactly the same but it's better than nothing for sure. The main thing I don't like about it is that it doesn't auto switch profiles when you change between audio devices of the same type, for example switching from bluetooth earbuds to bluetooth car speakers.
James DSP?? I dont know how to get it.... Please help.
 

Loustsoul

Senior Member
A simple search, you would have found it HERE
I'm sorry my post was not clear. I should have worded it better. I did use search. I found it, but was struggling with the instructions to make it work. I missed the part about saying that it was a different device. Thank you for your response and assistance. Now I am up and running, is there a list of what all the settings do? I did not see that list on here, perhaps my keyword usage is subpar. I would be grateful if you could send me in the correct direction.
 

Lughnasadh

Senior Member
Mar 23, 2015
4,686
5,303
Google Nexus 5
Huawei Nexus 6P
Tried both, but no luck.

Reading around a different thread, there seems to be even more as to why it doesn't work.
Since V4A uses 32-bit audio drivers, you need support for that. Support for 32-bit apps is not enough, it seems. I'm assuming the Corvus rom has added support for 32-bit audio drivers to allow V4A to work on it while on A13.
 

antonio_d25

Senior Member
Aug 31, 2021
63
21
I tried both Vipers on stock firmware and couldn't get them to work either. I also installed the modified Magisk that supports 32-bit apps. Still couldn't get viper to install the driver.

I will switch to Corvus now. Too bad that ROM won't be getting updates for a few months ...

Any other ROMs that have 32 bit support in them ?
 

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  • 2
    FYI: AML was just updated to v. 4.2 and now supports V4A RE.
    With the new AML (v. 4.2), JamesDSP (4.6) is now working with the new V4A RE on my Pixel 7 Pro, for those interested.
    2
    Maybe you wouldn't mind chiming in : Bluetooth working on 0.1.0? Also, are all viper files working ok, like presets, profiles, etc?
    Yes Bluetooth does work on 0.1.0. However Presets and profiles do not work yet. There are only a few settings that are able to be toggled on at the moment.
    1
    I think some of you are yanking our chain. I have been trying for 2 days to get this work on my Pixel 7 Pro. No audio mods installed, tried 3 different music players and still driver is unknown, Enabled NO, Audio format Unsupported, Processing NO with obviously no sample rate. lol

    EDIT: Don't mind me, only took me 2 days to realize I had LDAC selected in bluetooth.
    1
    FYI: AML was just updated to v. 4.2 and now supports V4A RE.
    1
    Where are convolvers to be found for download?
    Go to the V4A and JamesDSP Telegram groups and see if they have links or posted any files.
    Are v4a convolvers compatible with jamesdsp?
    Yes
    Can you explain which portions of v4anand jamesdsp are different and why you're using both? It may be applicable in my decision to use bother or only one. Thanks.
    You should just go to the respective threads and read the descriptions, or even better, just try each one yourself.
  • 23
    A possible light at the end of the tunnel is this project, they are aiming to reverse engineer Viper and modernise the files (hopefully that means using x64!). We'll just have to monitor the progress....

    Hi! I'm one of the guys working on that project, and I can already tell you it's going smoothly :)

    We have a few effects already working (although some extra work will be needed to check if they are 1:1, any small change in the code can lead to huge changes in audio quality).

    My initial goal was indeed creating a 64 bit version of it, and also removing the need for pathing selinux (and yep, i was able to achieve that, no selinux patches needed amymore).

    Overall it's looking good but I don't own a Pixel 7 Pro so I'll need some volunteers to test it once it's ready :)
    17
    Hey! Quick update, I released an alpha build, you can find it here: https://github.com/AndroidAudioMods/ViPER4AndroidApp/releases/

    It's just a test build, many things won't work, the app might crash if trying to load a preset, etc. Follow the instructions in the release to install it. Do not use any other audio mod, no AML or anything.
    7
    I use wavelet and it works really well. Always had trouble getting v4a working
    5
    thanks. downloaded jamesDSP and works fine. How can I get the best sound settings? Do you have any tips ?
    There really is no such thing as "best" sound settings. Sound is very subjective. What sounds good to one person may sound bad to another. Also, music genre plays a roll in how you set your sound up, as well as the type of device you are listening through (e.g. one brand/model of earbud will sound different than another and therefore adjustments will have to be made to that specific earbud).

    Best is to just play around with the settings until you come up with something you like.
    5
    V4A doesn't currently work on the Pixel 6 or 7 series running stock Android 13. Some have said it is working on the Pixel 7 Pro running the Corvus rom.
    I can confirm, I have it running on my Pixel 7 Pro with Corvus. No issues with Viper repackaged.... and the sound is fantastic ;-)