hei OP , can you please tell me witch lines from what file did you change to increase the volume? i wold like to make mine as high as possible 
I'll have what you are having mate. ?Stereo sound on single speaker? Quite funny!
Installing TWRP itself won't make your phone automatically get root. But it does trip Knox, which become problem for some people.I'm new to this twrp stuff. Can i just install twrp to flash this mod without making any other changes to my phone or will it be rooted/wiped in the process? Thanks.
You need root in order to install twrp.I'm new to this twrp stuff. Can i just install twrp to flash this mod without making any other changes to my phone or will it be rooted/wiped in the process? Thanks.
Will this work with the camera recorder? Cuz i was install dual speaker mod by otoneiru before and my camcorder won't work.DUAL SPEAKER AUDIO MOD FOR S8 & S8 + (EXYNOS)
So, this mod includes a talking speaker for the media (a stereo effect is created)
I will be supported while I have a device. We recommend to firmware based on the version G950FXXU1AQK7 and higher, because in this file are made changes and by Samsung.
Installation only through TWRP recovery!
Mod is based on the firmware: G950FXXU1AQL5 and G950FXXU1CRB7
Download
List of changesFor the version of android 7 View attachment 4443588
For the version of android 8 View attachment 4443589
Version from 03/13/2018Version dated 02/25/2018
Reduced gain
Version dated 01/16/2018Update for the base G950FXXU1CRB7
Changing the installation script
Edit code
Increased volume by 13%
Version dated 12/30/2017Release for bases on 7 (AQL5) and 8 (ZRA5) android
Version dated 12/21/2017Release for the base G950FXXU1AQL5
Version dated 12/15/2017Improved installer, modified script
Version dated 12/13/2017Changing the sampling rate
Changing audio bit depth
Improvements in Build.prop
Release
Your sound from the speakers will be: Clean, loud, with a deep and soft bass, without a metallic hue.
Post on 4PDA
Hi, can see in latest update (03/13/18) you 'reduced gain'. In update (02/25/18) you 'increased Volume by 13%'All works good
Have you an uninstall for this please, it is just for trying de difference sound. Thanks, and sorry for my English...On the release, the value was
<ctl name = "HPOUT2L Input 1 Volume" value = "32" />
<ctl name = "HPOUT2R Input 1 Volume" value = "32" />
in the version dated 02/25/2018 it was increased to
<ctl name = "HPOUT2L Input 1 Volume" value = "40" />
<ctl name = "HPOUT2R Input 1 Volume" value = "40" />
in the version dated 03/13/2018 it was changed to
<ctl name = "HPOUT2L Input 1 Volume" value = "35" />
<ctl name = "HPOUT2R Input 1 Volume" value = "35" />
this was done due to the fact that in the Russian-speaking community, and not only, the community had complaints about distortion of sound when making a call at maximum volume.
In the same fashion from the otonieru, the value remains at 35.
At the same time, the volume increase remained at 5%