Database Info

[NEW] Increase 700/701 Headphone Volume

Ok folks, as you know, the headphone volume could use a little higher output than we have right now. Especially for those of us "rockers"!
So, this little edit will increase the volume to a more desired level. Thanks to ZeroInfinity for the conversation.
Warning! I'm not responsible if you blast your eardrums out, or damage your headphones/earbuds. You do this at your own risk.
That said, your tab should have the following.
A. Rooted
B. /system write privileges
C. A good file explorer (ES File Explorer for example)
Open your file explorer and go to the following folder: /System/etc
Find the file "nvaudio_conf.xml
Open in the built in editor
Scroll down the file about 70 or so lines and you will see the following section;
Code:
<path>
<!-- playback paths-->
<ctl name="DRC Switch" val="1"/>
<ctl name="HPF Mode" val="Hi-fi"/>
<ctl name="Speaker Volume" val="0x39"/>
<ctl name="Headphone Volume" val="0x30"/>
<!-- capture paths-->
<ctl name="Left Input PGA Volume" val="0x1C"/>
<ctl name="Right Input PGA Volume" val="0x1C"/>
</path>
Gee, what's that???
<ctl name="Headphone Volume" val="0x30"/>
Here's the hard part.
Change that 0x30 to a 0x36
This relates to a value from 48 to a new 54.
Save your file, close your file explorer, and reboot.
Blast your eardrums out! :laugh::laugh::laugh:
You can also do this with the external speakers, but I'd be careful with them. Acer isn't known for using quality speakers
EDIT: Use this chart for a Hexdecimal conversion
Cheers!
(don't forget the Thanks button).

Way cool!!!!!

Awesome, MD!
I think we could the volume of the external speakers as well, like you said, but only for a small percentage.

TomONeill said:
Awesome, MD!
I think we could the volume of the external speakers as well, like you said, but only for a small percentage.
Click to expand...
Click to collapse
You should be able to. Note you will probably have to tweak each ext speaker setting in the file. Seems there are multiple entries depending on app.
I would advise only increasing by 1 step though and see how it behaves. I've seen speakers go bad on the 50x tabs on a normal basis!
Also, if you're running my de-odexed rom, or have de-odexed your STOCK rom, I have a 30 step volume mode that really helps. Stock setting is 15 steps.

Thanks for tuto. I changed speakers to 0x42 and after reboot the audio stopped (only for speakers) so i changed to 0x39 again.
I try with playerpro, basic media, streaming audio.... and nothing audio One fue speakers

chivopsycho said:
Thanks for tuto. I changed speakers to 0x42 and after reboot the audio stopped (only for speakers) so i changed to 0x39 again.
I try with playerpro, basic media, streaming audio.... and nothing audio One fue speakers
Click to expand...
Click to collapse
Probably Acer has a limiter in one of the config files. Will have to take a look.

yeah, up to eleven! \m/

Fix for low microphone volume in kitkat

So guys after a lot of research and playing around I have discovered a fix for the low microphone volume that we have since the kitkat update. Apparently it has to do with the way the audio config was changed between JB and KK.
The offending file is mixer_paths_VY55.xml in the /system/etc/ directory.
I changed the lines
Code:
<ctl name="DEC1 Volume" value="84" />
<ctl name="DEC2 Volume" value="84" />
to
Code:
<ctl name="DEC1 Volume" value="99" />
<ctl name="DEC2 Volume" value="99" />
I think this variable might have something to do with audio decoding (pretty sure I'm wrong and subject to correction).
Anyway, I have edited all the mixer_paths files to include this change and put them in a zip.
INSTALLATION:
You will need to be rooted (http://forum.xda-developers.com/xperia-m2/general/guide-root-kitkat-d2303-d2302-unlocked-t2898954)
Install a root explorer app
Delete the four mixer_paths files in /system/etc/
And you will need to copy the files in the zip to this location
Set their permissions to rw-r--r--
Reboot your device and enjoy your boosted mic!
To other people out there with other phones trying to fix their low kitkat mic volumes, try looking for a value in mixer_paths.xml related to the microphone that has a value of 84, and change it to 99
PS: PLEASE AVOID using the built in sony notes app to record or playback audio, it is buggy, does not work properly, and to get your audio to work normally you need to close the app.

What about Lollipop?
Do you know if this fix works in Lollipop?
I've just bougth this cellphone and it came with lollipop already. What can I do to fix it? Thanks

Guys just tried on M2 Aqua Lollipop 5.1.1 18.6.A0.182
There are only 3 archives: mixer_paths, mixer_paths_VY55 e mixer_paths_VY58. Changed the numbers and now the volum is so much better
Very happy, thank you

works fine 10x

Any solution for Ice Cream Sandwich, i have same problem but these files are absent in my device

Excellent work ismithx - just cured my "mic-dead" Xperia M2 !! - Now working better than ever !!

that works well for Lollipop
Thanks a lot! :good:

Really need help - just tried to use this on my Sony M2 but quickly found that I can't make calls - as soon as the receiver picks up my phone restarts?! I tried to change the value back to 84 since low volume is better than no volume but it keeps saying "Failed saving mixer_paths_VY55.xml"!! I also tried to reset my phone but it's still there, no idea what to do please help!

Tested on msm8909 lollipop [WORKING]
tquin said:
Do you know if this fix works in Lollipop?
I've just bougth this cellphone and it came with lollipop already. What can I do to fix it? Thanks
Click to expand...
Click to collapse
I required this solution because the device I tested always has a low mic volume on Viber. It works fine with WhatsApp and normal calls though. And this device is having a qualcomm msm8909 chipset. it is not an Xperia M2.
In my case I had these 7 files inside /system/etc
mixer_paths.xml
mixer_paths_msm8909_pm8916.xml
mixer_paths_qrd_skuh.xml
mixer_paths_qrd_skui.xml
mixer_paths_skua.xml
mixer_paths_skuc.xml
mixer_paths_skue.xml
I tested one by one because there was not mixer_paths_VY55.xml in my device as ismithx said.
Finally I succeeded with mixer_paths_skue.xml

[Q] How modify mixer_paths.xml to raise headphones volume?

Reading on Internet, I found that modifiying the mixer_paths.xml file, it's possible to increase volume on headphones. The problem is that I don't know what values modify. I'll appreciate that someone help me.

Evedammo said:
Reading on Internet, I found that modifiying the mixer_paths.xml file, it's possible to increase volume on headphones. The problem is that I don't know what values modify. I'll appreciate that someone help me.
Click to expand...
Click to collapse
"To change the Headphone volume:
Find: <path name="headphones"> Look for these strings below it:
"HPHL Volume" value="15"
"HPHR Volume" value="15"
Again all we are changing is the values (ensure both are set at the same number).
For the mod above, I changed the values to "20". The default values are "15" and I would suggest not to go over "20"."
This is for the Nexus 5 but I suppose its the same process but I wouldn't recommend to do that I suggest you to buy a DAC/AMP, because when you mod the file you can potentially reduce quality, and could damage your ears by doing that.

[MOD][ROOT][G930F]Speaker volume boost

Hello
I give you speaker volume boost for the Galaxy S7, Exynos variants. check under system/etc and mixer_paths.xml with a root explorer.
these are the stock values, I think 30-31 is good, but you can try higher values and see what you think.
<ctl name="DSP5L Input 1 Volume" value="26" />
<ctl name="DSP5L Input 2 Volume" value="26" />

I think I found the values, if anyone else could try and verify it would be good, but I noticed louder sound
<ctl name="DSP5L Input 1 Volume" value="26" />
<ctl name="DSP5L Input 2 Volume" value="26" />
thats the stock values, you could try 30-31.
Tapatalked from GALAXY S7

For a headphone volume hack (not speaker) see here: http://forum.xda-developers.com/galaxy-s7/themes/galaxy-s7-s7-edge-easy-headphone-volume-t3337937

33 its good

thanks
hey thank you for the for that. only im not up to the levels of you guys. I'm just a low level scrub. but i do appreciate it. thanks for the time. dont get that a lot or see it that much now days. well on here " XDA" i do. love this place. thanks to you and everyoneelsehere!

Rooting my Galaxy s7
Hello,
I do not know the first thing about rooting my phone. Can you please explain step by step?

dcova15 said:
Hello,
I do not know the first thing about rooting my phone. Can you please explain step by step?
Click to expand...
Click to collapse
Here's the STEP BY STEP instructions, this is, if you have an Exynos version of the S7 (930F for example)...
http://forum.xda-developers.com/galaxy-s7/development/recovery-official-twrp-herolte-t3333770
Regards,
Chale

wow
Great mod thanks

This thread seems a bit old, but after I thought that flashing the zubi mod with flashfire didn't really yield a lot of difference (at least not noticeable for me), I tried this one. To verify, I actually set the values to 15 and the sound of the speaker was clearly less loud. As 30 didn't yet cut it, I'll try the 33.
What I found though, just as a side note: if you scroll down after changing numbers according to this thread, if you mute incall for the same values (guess this would be speaker phone), and unmute later, the values go back to 26. So I will change this to the same numbers as I'll use for the regular speaker.

Mikegrmn said:
This thread seems a bit old, but after I thought that flashing the zubi mod with flashfire didn't really yield a lot of difference (at least not noticeable for me), I tried this one. To verify, I actually set the values to 15 and the sound of the speaker was clearly less loud. As 30 didn't yet cut it, I'll try the 33.
What I found though, just as a side note: if you scroll down after changing numbers according to this thread, if you mute incall for the same values (guess this would be speaker phone), and unmute later, the values go back to 26. So I will change this to the same numbers as I'll use for the regular speaker.
Click to expand...
Click to collapse
If you don't see difference is because you don't flash the mod correctly, the version that you flash is not for your model or Flashfire is not compatible with this mod
The difference is brutal

zubi182 said:
If you don't see difference is because you don't flash the mod correctly, the version that you flash is not for your model or Flashfire is not compatible with this mod
The difference is brutal
Click to expand...
Click to collapse
Well, I downloaded the proper version and after some initial screen outputs telling me that not all permissions could be set properly, I found the flashfire setting where it said that everything got through properly. Maybe it didn't, but it still said it did. And after having successfully flashed xposed with flashfire, it should also work with the sound mod. Whatever.

Can i use do this with just root without custom recovery?

Wow! Nice trick.
I'm using Lineage OS 17.1 and my s7 is much louder now.
//Push
Found this thread, everyone have to see this too. If not posted already somewhere else on here..

PrevosHD said:
Wow! Nice trick.
I'm using Lineage OS 17.1 and my s7 is much louder now.
//Push
Found this thread, everyone have to see this too. If not posted already somewhere else on here..
Click to expand...
Click to collapse
Alternatively, you could do it systemlessly by using JamesDSP Magisk module's output gain feature.

Mic problem during video calls (G930F)
Hi, great tutorial/info.
I have a PixelExperience Plus custom ROM on my S7 G930F.
I am looking for the mic information as i believe that the mixer_paths file has either lowered the volume or changed which mic it is using as when i am on a video call i have to almost speak into the bottom of the phone, near the charge port. I know it is specific so i may just need to install the stock mixer_paths_0.xml file but i can't find it anywhere online. I dont suppose anyone on here has one saved that i could copy? Should have backed it up but i am a fool ;P
It is only a small problem but as i am not aways at home when my missus puts my son to bed i'd still like to be able to video call properly.
Thanks for your time.

[email protected] said:
Hello
I give you speaker volume boost for the Galaxy S7, Exynos variants. check under system/etc and mixer_paths.xml with a root explorer.
these are the stock values, I think 30-31 is good, but you can try higher values and see what you think.
<ctl name="DSP5L Input 1 Volume" value="26" />
<ctl name="DSP5L Input 2 Volume" value="26" />
Click to expand...
Click to collapse
This work also for me on my Galaxy S7, running Pixel Experience made by Expressluke with Android 13 running also Twrp 3.7 and Magisk 25.2.

Thoughts - Force High Impedance Mode without external cables

It seems not everyone is aware of the "High Impedance" mode for the DAC.
It's the best mode and the audio quality seems to be the best.
You can only trigger it with connecting high impedance headphones,
Or, like many here do, hassle your way with cables to trick it into this mode
(For example - i use extension cable+audio technica anc33is = triggers "High Impedance" mode).
Personally i think it is absurd to go through all those tricks just to get good audio quality.
I guess it exist to prevent headphone damage / battery),
But really, i'd like to get the full power from the audio chip, because that's what i bought, without traveling with tons of cables.
Now for the actual stuff:
Any ideas how to remove the software limit and force it into "high impedance" always?
Perhaps some *.prop file, or..? How would you approach this.

In fact @HocqpepaTy has provided a method to triggers "High Impedance" mode without external cables in the DAC-Fix thread.
1. You need root on your phone
2. Using a root explorer, mount R/W and navigate to system/etc
3. Go to /system/etc/mixer-paths.xml (remember to backup it first)
4. Find this part of code, change the value of "headphones-hifi-dac" from "31" to "13" to make normal mode same as AUX mode, also, "0" for High Impedance Mode
Code:
<path name="headphones-hifi-dac">
<ctl name="Es9018 Master Volume" value="31" />
</path>
<path name="headphones-hifi-dac-advanced">
<ctl name="Es9018 Master Volume" value="0" />
</path>
<path name="headphones-hifi-dac-aux">
<ctl name="Es9018 Master Volume" value="13" />
</path>
5. Change permissions of mixer-paths.xml to 0644. (rw-r-r)
6. Reboot.
PS: After reboot, it will not change the text, still showing "normal audio device", but the changes in sound is noticeable.

ivangundampc said:
In fact @HocqpepaTy has provided a method to triggers "High Impedance" mode without external cables in the DAC-Fix thread.
1. You need root on your phone
2. Using a root explorer, mount R/W and navigate to system/etc
3. Go to /system/etc/mixer-paths.xml (remember to backup it first)
4. Find this part of code, change the value of "headphones-hifi-dac" from "31" to "13" to make normal mode same as AUX mode, also, "0" for High Impedance Mode
Code:
<path name="headphones-hifi-dac">
<ctl name="Es9018 Master Volume" value="31" />
</path>
<path name="headphones-hifi-dac-advanced">
<ctl name="Es9018 Master Volume" value="0" />
</path>
<path name="headphones-hifi-dac-aux">
<ctl name="Es9018 Master Volume" value="13" />
</path>
5. Change permissions of mixer-paths.xml to 0644. (rw-r-r)
6. Reboot.
PS: After reboot, it will not change the text, still showing "normal audio device", but the changes in sound is noticeable.
Click to expand...
Click to collapse
Thanks, I did this and sound got louder and clearer, I tested with Chopin piano sonata :good:

melorib said:
Thanks, I did this and sound got louder and clearer, I tested with Chopin piano sonata :good:
Click to expand...
Click to collapse
Found a way to change analog gain value without having to mess around with editing Mixer_paths.xml and what not.
Assuming you're rooted download ALSAMixer from Google Play install ALSA from in the app and make sure you select alsa_amixer controls as your Mode in settings in the ALSAMixer App.
After that search for Es9018 Master Volume and change the value to anything from 0 to 80. 0 being max volume like High Impedance mode is set to.
This isn't permanent and will reset on restart but it's nice to be able to change analog volume on the fly.

Thanks to ivangundampc for this trick.
Thanks also to KosanRio for the alsamixer tweak. I'm curious if the end result is the same (with a '0' value in alsamixer or in /system/etc/mixer-paths.xml)...

oleg77 said:
Thanks to ivangundampc for this trick.
Thanks also to KosanRio for the alsamixer tweak. I'm curious if the end result is the same (with a '0' value in alsamixer or in /system/etc/mixer-paths.xml)...
Click to expand...
Click to collapse
It is I believe, plugging in Aux/High-impedance headphones/normal headphones will all give you the exact same value in AlsaMixer as it does in Mixer_paths.xml

finally a superb sound out of the box
:good:
I'm relieved not to have to use an adapter cable with the V10 anymore !

Edit, nevermind.

melorib said:
Thanks, I did this and sound got louder and clearer, I tested with Chopin piano sonata :good:
Click to expand...
Click to collapse
I ran into this blog struggling with trying to get more gain out of my V10. I'm on MM and rooted. I currently do not hear the quick silence switching between HiFi ESS DAC and back to the SoC DAC. I previously had a V10 that was on LP and I could hear the serious difference. The only output I can get out of my phone is the SoC.
In regards to this mixer paths edit, does the lower number (in this case 13) change the audio gain to output more voltage? Also, you state "0" for high impedence mode. Am I supposed to change the 0 to 13 as well?
I really wish I could understand this more. I have V4A installed and running without issues - which I did in the past on LP. Now I'm just baffled I can't figure out what's going on.
Thanks in advance!

joesee said:
I ran into this blog struggling with trying to get more gain out of my V10. I'm on MM and rooted. I currently do not hear the quick silence switching between HiFi ESS DAC and back to the SoC DAC. I previously had a V10 that was on LP and I could hear the serious difference. The only output I can get out of my phone is the SoC.
In regards to this mixer paths edit, does the lower number (in this case 13) change the audio gain to output more voltage? Also, you state "0" for high impedence mode. Am I supposed to change the 0 to 13 as well?
I really wish I could understand this more. I have V4A installed and running without issues - which I did in the past on LP. Now I'm just baffled I can't figure out what's going on.
Thanks in advance!
Click to expand...
Click to collapse
Someone correct me if I'm wrong but I think 0 is for high gain mode. 13 is for Aux mode.
If you don't want to mess with xml you can download the alsa app and play with that a bit.
Head over to head-fi.org there are more forum posts on getting best sound out of the V10.
Sent from my LG-H901 using Tapatalk

gustav30 said:
Someone correct me if I'm wrong but I think 0 is for high gain mode. 13 is for Aux mode.
If you don't want to mess with xml you can download the alsa app and play with that a bit.
Head over to head-fi.org there are more forum posts on getting best sound out of the V10.
Sent from my LG-H901 using Tapatalk
Click to expand...
Click to collapse
Thanks for the reply! I tried out the Alsa app, but when I select the controls (not scontrols) nothing appears in the list. Not sure what I'm doing wrong? I granted it root access. The error I get is: "error: only position independent executables (PIE) are supported."
I think there's something wrong with the ROM in general. This is complete stock with only root. Previously I could tell when the DAC was enabled by a short period of silence, and the volume would then be reduced. Also, when the volume was at 0 it was at the far left and would go all the way to the right as "max", and when it's on it would start at 0 at the far left, then only go to 75 (which is the DAC's max volume setting).
The confusion here is I can't get any difference in sound no matter what I do. Even if I trick the DAC into aux mode, nothing changes. Trying to adjust the balance in the HiFi settings page does nothing.
When I had LP installed, it worked PERFECT. I used the DAC only on flac files when I was home sitting in my chair, and would leave the DAC off for mp3's and Spotify while traveling because the volume would go higher to overcome the aircraft noise.

joesee said:
Thanks for the reply! I tried out the Alsa app, but when I select the controls (not scontrols) nothing appears in the list. Not sure what I'm doing wrong? I granted it root access. The error I get is: "error: only position independent executables (PIE) are supported."
I think there's something wrong with the ROM in general. This is complete stock with only root. Previously I could tell when the DAC was enabled by a short period of silence, and the volume would then be reduced. Also, when the volume was at 0 it was at the far left and would go all the way to the right as "max", and when it's on it would start at 0 at the far left, then only go to 75 (which is the DAC's max volume setting).
The confusion here is I can't get any difference in sound no matter what I do. Even if I trick the DAC into aux mode, nothing changes. Trying to adjust the balance in the HiFi settings page does nothing.
When I had LP installed, it worked PERFECT. I used the DAC only on flac files when I was home sitting in my chair, and would leave the DAC off for mp3's and Spotify while traveling because the volume would go higher to overcome the aircraft noise.
Click to expand...
Click to collapse
Yeah does seem rom related with the error from alsa and nothing happening. Like its not getting enabled. Since your rooted, can you make a twrp backup, then do a factory reset and see if that does anything.
You could also try flashing the two roms available for the device. I'm like you, stock rooted. But I'd probably make a backup and try Andy's rom just to see if it's software related.
Sent from my LG-H901 using Tapatalk

Thanks for all this. Worked like a charm. No more bs with extension wires. I swear it sounds even louder and cleaner with just the headphones plugged in without the extension cable.
Just curious. Has anyone tried any other value, like 12 or 14. Why 13?

Hi,
My V10 not recognized the high impedence ear Phone.
The only way is modify The values on System file?
Best regards