[MOD] Dual Speakers Mod for N910K

[sVenose]

This mod enables the Earpiece speaker to be used at the same time with the main rear speaker when using listening to music, and watching videos etc...

Updated

Now TRUE STEREO with Earpiece playing the LEFT channel and rear speaker playing the RIGHT channel. Test with app of your choice.

To install open the zip file and extract the "default_gain.conf" file and copy it to "/system/etc/default_gain.conf" using your preferred method.

Then set permissions to rw-r-r or 0644 ( e.g "chmod 0644 /system/etc/default_gain.conf" ) and REBOOT your device.

Volume levels are pushed to maximum possible without distortion with EQ on Earpiece speaker to remove low frequencies. Good luck.

Works on my SM-910K running MarshMallow 6.0.1.

WARNING!!!

THIS HAS ONLY BEEN TESTED ON THE DEVICE MENTIONED ABOVE. MAKE SURE TO BACKUP YOUR DEFAULT "default_gain.conf" FILE BEFORE INSTALLING THE NEW ONE.
(E.g "adb pull /system/etc/default_gain.conf [safe location here]" or "adb shell cp /system/etc/default_gain.conf /sdcard/default_gain.conf.bak" )

To be SAFE DO a NANDroid backup in Recovery.

Happy modding.

NOTE:

If you cannot find "/system/etc/default_gain.conf" file on your device then this MOD will NOT WORK for you. If that is the case you can try the other surround mods for other variants of the Note 4. This has only been tested to work on the N910K.

I created this one because the mods for the other variants didn't work on my phone since it uses the "default_gain.conf" file instead of the 'normal' "mixer_paths.xml" file.

Source

https://github.com/salvenose/dual_mod

Changelog
v1 -> Initial Dual Speaker Mod
v2 -> Upgrade to true stereo
v3 -> Fix for audio leak through earpiece while Headphone connected

 

[alexetna95]

Tried it on my N910F running 6.0.1 and seems like it works,but need to cover the main speaker to hear anything from the earpiece.

 

[sVenose]

Tried it on my N910F running 6.0.1 and seems like it works,but need to cover the main speaker to hear anything from the earpiece.

If there was a quick ON/OFF toggle you would notice that it makes quite a difference than with it turned off completely. Especially when you receive a notification etc... with your phone lying on a flat surface.

I haven't yet figured out how to manipulate the EQ settings for the front earpiece so that it only outputs mid-treble range without any bass.

Once I do, I'll be able to boost the volume without causing distortion. Otherwise it might damage the earpiece.

 

[alexetna95]

Where shoud I found that toogle ?
Actually I didn't find a "default_gain.conf" file in etc,so I just simply copied the one from your mod zip.

 

[sVenose]

Where shoud I found that toogle ?
Actually I didn't find a "default_gain.conf" file in etc,so I just simply copied the one from your mod zip.

If you didn't find a "default_gain.conf" file then the mod definitely won't work. It's not working for you.

 

[Ryuce]

Would this work on N910U?

 

[mangui]

It works on the 910C running Nemesis

Good job OP, this mod on 910C it is been hit and miss with a lot of distortion. This is the best implementation I have used. ?

 

[the_bao]

Finaly N910c has this mod
It is working. Thank you very much :highfive::highfive:
Came from @mangui's post in NEMESIS REFINED V3.8.5 N7 Port by*ananjaser1211

 

[danilisilva7]

Confirmed!!! This work good on 910C , thanks very good mod

 

[alextalexus]

Working, but after first call - microphone stop working

 

[monr61]

Fixed call microphone

Working, but after first call - microphone stop working

I've fixed it ?

 

[Ryuce]

Hi theres a bug
when I plug in earphones , sound still comes out of front mic

 

[sVenose]

Here is the source pushed to GitHub

https://github.com/salvenose/dual_mod

 

[sVenose]

Possible Fix

Hi theres a bug
when I plug in earphones , sound still comes out of front mic

Can you tell me if this fix works

https://raw.githubusercontent.com/salvenose/dual_mod/master/default_gain.conf

 

[Ryuce]

Can you tell me if this fix works

https://raw.githubusercontent.com/salvenose/dual_mod/master/default_gain.conf

Thanks bro its fixed!

 

[sVenose]

Thanks bro its fixed!

Alright. Just added v3 to the original post. Have a nice day and God bless you.

 

[rezadentevil]

Wooooow
Thats awesome
V3 Working great on N910C ,

 

[Ryuce]

I found another bug
When i make phone call people i call cant hear me

 

[rezadentevil]

I found another bug
When i make phone call people i call cant hear me

Yes i have the same problem,

I have to restart my phone, then it worka fine

 

[alextalexus]

Hi again,
After update to erobotrom v1.2, I have the same problem - microphone stop working. Somebody have the original mixer_path and default_gain or the other solution for this problem. Thx.