Develop Bugs

[tweak][guide] louder sound and better quality music

ok.after some research and trying, i found some way to make our phone lounder and a bit more better quality.
first u need to know how our phone work to play music:
source ( MP3,m4a..) --> decode --> digital signal --> DAC --> analog signal X(weak but high quality) --> AMP --> analog signal Y (strong but less quality) --> headphone output.
if u dont know about DAC, AMP just see:
DAC: http://en.wikipedia.org/wiki/Digital-to-analog_converter
AMP: http://en.wikipedia.org/wiki/Amplifier
(but u dont need to understand them to do this tweak.)
the AMP has a value called gain (simplest way to understand, it the value of the volume bar we often increase or decrease while playing music)
if the gain have a value A, then we have:
Y = A . X​
but, the problem is, A has a maximum value. and, the more important thing is, this is not really " = ".( because our AMP is not good)
it's mean, the bigger value of A, the worse quality of signal Y.
and this limited also make our phone have small sound with some people
this is technical, but you can just simple hear it very bad while in crease max volume, event with a high quality headphone.
so how we resolve it?
just simple, in crease the signal X.
there is a file called amp_gain.txt in system/etc (you need root explorer to acess)
open it, and we have some value:
DS,00,00
MH,00,1F
SH,00,18
SP,1F,00
FS,1C,0D
RH,00,17
RS,1F,00
AH,00,1E
AS,1F,00
(this may be diff from some phone and rom)
the value is hex (from 00 to FF)
and the value AH is the value show how strong the signal X is. (the green value)
just increase it and you will feel the different.
with me, sound come out 3.5 jack is louder, a bit more detail, the bass is better than the increase volume.
note:
-the value AH set how strong signal X comes out DAC. and DO NOT set it too high.(it may be dangerous)
-if you hear the noise while mute or change soundtrack, decrease the value of AH.
-when you change AH to an value and you listen to music at volume level about 40-50%, this is the best.lower make sound is bad, higher make more noise.
-this AH affect output 3.5 jack. others are not tested. there is so much value, and i dont have time to test all. but if you can test please tell us how it affect sound but increase value step by step.
it wont harm your phone, but anyway i am not responsibility for any damage​​

(MOD) (Omnirom n8013 only) increase headphone volume and speaker volume to the max !

(Tested in Omnirom 4.4.4 for Note 10 n8013 only)
For those who want to increase headphone volume and speaker volume without distortion to the max beyond device max volume flash this file in recovery (disable zip signing check in recovery) and enjoy !!!
You will have to flash this file with every rom update till this mode included in rom by default
Done as always by using Alsamixer app and knowning the current max volume and maximum volume that could be reached then editing manually by Es file explorer
Please if you like it ask the developer to include it permanently in the rom

Mohamedselim said:
(Tested in Omnirom 4.4.4 for Note 10 n8013 only)
For those who want to increase headphone volume and speaker volume without distortion to the max beyond device max volume use this file in attachments :
1- unzip
2- use es file explorer in root mode
3- place the file (unzipped) to system/etc/sound and overwrite the file with same name and set permissions to rw-r-r root root and reboot device and enjoy !!!
You will have to replace file with every rom update till this mode included in rom by default
Done as always by using Alsamixer app and knowning the current max volume and maximum volume that could be reached then editing manually by Es file explorer
Please if you like it ask the developer to include it permanently in the rom
Click to expand...
Click to collapse
Be careful: the property "Speaker Boost Volume" was already in there I've added it long time ago (line 42) with a comment, plus see property "AIF1DAC1 3D Stereo Volume" at line 101. I have lowered those values after the users reported distorted audio (search in omnirom 4.4.4 thread around a year ago, maybe less)

marco9333 said:
Be careful: the property "Speaker Boost Volume" was already in there I've added it long time ago (line 42) with a comment, plus see property "AIF1DAC1 3D Stereo Volume" at line 101. I have lowered those values after the users reported distorted audio (search in omnirom 4.4.4 thread around a year ago, maybe less)
Click to expand...
Click to collapse
Thanks for commenting
The increase in speaker volume is tiny from 60 to 63
The increase in headphone volume is big from 50 to 63 (as reported by Alsamixer app) and i confirm no crackling sound especially in headphones even if pumped to full volume (63) (you need a decent pair of headphones of course as Beats or Skullcandy etc)

Max volume of your device(only for devices with MTK processors)

Hi guys,
I found a way to increase the volume of our device .....and also control the volume...
you need the following
Rooted device
Backup (remember the stock settings in the app)
So all you need is only an app from google play store which is free to download.
So the app is MTK Engineering Mode.
Here is the link for it
play store link:https://play.google.com/store/apps/details?id=com.themonsterit.EngineerStarter&hl=en
Once installed open the app and go to MTK settings.
Now go to headset or speaker(your desired place to increase sound)and enter max values that is mentioned.
Now check your sound.
Note: You may see some slight less quality in the sound but the vol will be super high and more than normal.
This works only on devices with MTK processors.
Android(2.3+)
Hit thanks if I helped you
Cheers,
ZTE blade l :good:

thanks. this definitely boosts your volume however i am looking for a way to boost it even further. running dsp manager which has a great effect on bass boost but not volume. any ideas to boost bass and volume levels?

i think i reached my goal. after rooting i use DSP manager and pi music player which comes with an equalizer as well, sound is pretty loud now.

there is a second volume hack i found:
do what Post1 says and additionally under type chose "media" and uder level chose "level 14" (or whatever is the latest number) change its value to 255.
now you can damage your ears! that's what i am calling music

Mi5s Speaker volume boost

Hallo devs, i am trying to boost speaker volume (and telephone ring) of my mi 5s.
i have tried to modify mixer path file in System\etc accordingly to the mi5 thread (http://forum.xda-developers.com/mi-5/how-to/how-to-increase-speakers-volume-mi5-t3400372).
It doesn't work for me.
Can someone help me?

Low volume except in nougat .

As we all know ,zuk z2 plus has a very low speaker and ear piece.
People usually use Dolpy Atmos module to make the volume louder . It works , but I tried different versions of it but the only one that worked for me was the nougat version and now I'm stuck with android nougat because the loud volume is very important for me.
What do you use to make uour volume louder guys ? I want to update to pie but all the roms I tested have a really low volume .

The Sinbad said:
As we all know ,zuk z2 plus has a very low speaker and ear piece.
People usually use Dolpy Atmos module to make the volume louder . It works , but I tried different versions of it but the only one that worked for me was the nougat version and now I'm stuck with android nougat because the loud volume is very important for me.
What do you use to make uour volume louder guys ? I want to update to pie but all the roms I tested have a really low volume .
Click to expand...
Click to collapse
1.download a file explorer
2.Go to *root* > vendor > etc
3. Open mixer_paths_tasha.xml in editor.
4. To increase speaker volume -
Find "RX7 DIGITAL VOLUME" and change it's value from 84 to 87
5 to increase earpiece volume -