[MOD][Jan/26/2015] OnePlus One Audio Mods Collection

[abhi08638]

What is this?
This post is a collection of all the audio related mods I have created from the OnePlus One. The mods are: Triple Mono sound, True Stereo sound, Main Microphone bypass, Speakerphone low volume fix, and Speakerphone low volume fix with True Stereo sound. If you have a request, then make it here and I try to make it if I can.

Various Mod Explanations

What is it?***True Stereo or Triple Mono***

This mod will activate you front earpiece speaker in conjunction with the rear main speaker any time Speaker mode is used for example playing music, watching movies, shows, you tube and so on, creating an almost surround sound type of effect.

True Stereo
I have enabled true stereo playback by putting the speakers on a different channel than the earpiece. This version of the mod will only be noticeable if you are listening to music that was recorded in stereo. Although I would recommend going with the Triple Mono version. This version is quieter than the Triple mono version. WARNING: MESSING WITH YOUR EQ WILL ALSO EFFECT THE EARPIECE. IT COULD POTENTIALLY BLOW IT OUT IF YOU INCREASE THE VOLUME OR BASS TOO MUCH

Triple Mono
This version plays all audio through one channel. This basically means that you now have 3 mono speakers and is what I recommend since the sound comes out much louder than the Stereo version. WARNING: MESSING WITH YOUR EQ WILL ALSO EFFECT THE EARPIECE. IT COULD POTENTIALLY BLOW IT OUT IF YOU INCREASE THE VOLUME OR BASS TOO MUCH

Main Mic Bypass
This version bypasses the main microphone in case it is broken. When the main mic breaks, it disables ALL audio input even though the other internal mics are fine. The only way to fix the main mic is to solder a new one on, but this mod can temporarily delay this procedure by re enabling audio input from the other internal mics.

Speakerphone low volume fix
I've seen many people have this problem. I think its due to the fact the the phone relies on the main microphone too much. What I did is instead of using the main microphone for both headset calling and speakerphone calling with the aux mic for noise cancellation, I made it so that the main mic is used for the headset only and the aux mic is used for speaker calling only. This has worked for some people but I can't guarantee it will work for you as well.

Speakerphone low volume fix With True Stereo
Same as the speakerphone mod but with true stereo mod implemented.

Camera AutoFocusFix
Fixes the camera click sound you get when recording. Included in all other files.

Prerequisites and installation instructions

• MUST be rooted
• go into /system/etc
• backup your mixer_path.xml
• Flash one of the zips below
• reboot

This mod modifies the mixer_path.xml in the /system/etc folder. I have only tested this on CM11. ***CM12*** seems to work as well.
I don't guarantee it will work for your rom, because this is based off LiquidSmooth rom. Although the worst that'll happen is you'll lose sound. If you have a backup of your original mixer_path.xml, then just push it back to /system/etc, set permissions, and reboot. That will allow you regain your sound if it was lost. In a worst case scenario where you messed up the permissions and are in a bootloop, flash the revert to stock zip or dirty flash your rom.

Technical Info for DIY

This is what I modified to enable it only for Triple Mono audio playback.
RX1 is the headset
RX3 is the speaker

"ear" path

<path name="ear">
***Added***<ctl name="SLIM RX1 MUX" value="AIF1_PB" />
***Added***<ctl name="SLIM_0_RX Channels" value="One" />
<ctl name="RX1 MIX1 INP1" value="RX1" />
<ctl name="CLASS_H_DSM MUX" value="DSM_HPHL_RX1" />
<ctl name="RX1 Digital Volume" value="90" />
<ctl name="EAR PA Gain" value="POS_6_DB" />
<ctl name="DAC1 Switch" value="1" />
</path>

custom speaker-ear path

<path name="spk-ear">
<path name="ear" />
<ctl name="RX3 MIX1 INP1" value="RX1" />
<ctl name="RDAC5 MUX" value="DEM3_INV" />
<ctl name="COMP2 Switch" value="1" />
<ctl name="LINEOUT1 Volume" value="13" />
<ctl name="LINEOUT3 Volume" value="13" />
</path>

output paths

<path name="handset">
***removed two lines and added to "ear" path***
<path name="ear" />
</path>

<path name="speaker">
***change path to custom***<path name="spk-ear" />
***Increase headset***<ctl name="RX1 Digital Volume" value="90" />
***reduce speakers***<ctl name="RX3 Digital Volume" value="70" />
<ctl name="RX4 Digital Volume" value="80" />
</path>

Customizing your sound levels
The file I attached has the speaker volume slightly reduced so it sounds more balanced overall. However, you can customize how loud or quiet you want the speaker or headset to be.

• Open the mixer_paths.xml
• Go to the "output paths" section
• find the <path name="speaker"> line
  
  <path name="speaker">
  ***change path to custom***<path name="spk-ear" />
  ***Increase headset***<ctl name="RX1 Digital Volume" value="90" />
  ***reduce speakers***<ctl name="RX3 Digital Volume" value="70" />
  <ctl name="RX4 Digital Volume" value="80" />
  </path>
• To change the speaker volume
  
  change the value "70" to your desired value in the following line
  <ctl name="RX3 Digital Volume" value="70" />
  NOTE: The default CM11 value is 80. This value will restore it to the default loudness.
  
• To change the headset volume
  
  change the value "90" to your desired value in the following line
  <ctl name="RX1 Digital Volume" value="90" />
  NOTE: The default CM11 value is 86. This value will restore it to the default loudness.
  WARNING: I would not recommend going over 95. The reason being that after 95, on louder volumes, the headset starts crackling.
  
• save and reboot

github link
https://github.com/abhi08638/OPO-Audio-mods

Flashable Zips are below

Credits
@sshafranko
His thread:
http://forum.xda-developers.com/note-edge/development/mod-sm-915t-surround-sound-t2955648

Please do not use this in your rom without proper credits.

 

[mackentosh]

Sweet

 

[DerRomtester]

Downloading now. I will test it when i have time and i will report back.

Sent from my A0001 using XDA Free mobile app

 

[erdal67]

Hope it works on CM11S + Ak kernel

 

[sshafranko]

Awesome job...wait till everyone hears their phone after doing this. LOL Thanks for all your help abhi

 

[truth77]

Works, But much quieter than bottom speakers.

 

[abhi08638]

Works, But much quieter than bottom speakers.

I toned down the bottom speakers to make it sound more balanced. I can tell you how to increase it if you want.

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

 

[truth77]

I toned down the bottom speakers to make it sound more balanced. I can tell you how to increase it if you want.

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

Please do. I'm all ears

 

[NikoZBK]

It works, but I too would like to know how to increase the earpiece volume.

 

[truth77]

Is it spkr-ear path value 70 & 80? Lol couldnt help myself fromm looking hehe

 

[abhi08638]

Please do. I'm all ears

It works, but I too would like to know how to increase the earpiece volume.

Under the output paths in the XML file, find this:

<path name="speaker">
<path name="spk-ear" />
<ctl name="RX1 Digital Volume" value="90" />
<ctl name="RX3 Digital Volume" value="70" />
<ctl name="RX4 Digital Volume" value="80" />
</path>


Modify this line
<ctl name="RX3 Digital Volume" value="70" />


To
<ctl name="RX3 Digital Volume" value="80" />

80 is the default value on our phones so i wouldn't go higher than that.

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

 

[abhi08638]

Is it spkr-ear path value 70 & 80? Lol couldnt help myself fromm looking hehe

Lol sort of.
RX1 = 90 is the headset
RX3 = 70 is the speakers

The defaults are RX1 = 86 and RX3 = 80

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

 

[truth77]

Under the output paths in the XML file, find this:

<path name="speaker">
<path name="spk-ear" />
<ctl name="RX1 Digital Volume" value="90" />
<ctl name="RX3 Digital Volume" value="70" />
<ctl name="RX4 Digital Volume" value="80" />
</path>


Modify this line
<ctl name="RX3 Digital Volume" value="70" />


To
<ctl name="RX3 Digital Volume" value="80" />

80 is the default value on our phones so i wouldn't go higher than that.

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

Haha i was right lol! I figured those were the lines

 

[abhi08638]

Haha i was right lol! I figured those were the lines

Let us know how it goes

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

 

[truth77]

Let us know how it goes

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

Made the ear speaker loudee but my bottoms are crazy loud lol. Rx1 you say is the bottom speaker right?


Edit: sorted out, sounds good. Definitely a difference.

 

[abhi08638]

Made the ear speaker loudee but my bottoms are crazy loud lol. Rx1 you say is the bottom speaker right?


Edit: sorted out, sounds good. Definitely a difference.

No rx3 is the bottom speaker

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

 

[abhi08638]

OP Updated with instructions to set custom values for headset and speakers

 

[maxver0]

Made the ear speaker loudee but my bottoms are crazy loud lol. Rx1 you say is the bottom speaker right?


Edit: sorted out, sounds good. Definitely a difference.

Can you share your settings

 

[zaphodbeeb]

Cool, trying it our with viper.

 

[truth77]

Can you share your settings

Here ya go
<path name="speaker">
<path name="spk-ear" />
<ctl name="RX1 Digital Volume" value="90" />
<ctl name="RX3 Digital Volume" value="70" />
<ctl name="RX4 Digital Volume" value="84" />
</path>

85 & 86 crackle at top volume 84 is the max. I lowered the speakers but not worth the volume loss. Oneplus is louder than most phones anyways so 70 not bad. The mod makes it sound like the words come from the earpiece. sounds best holding the phone upright.

---------- Post added at 08:04 PM ---------- Previous post was at 08:02 PM ----------

No rx3 is the bottom speaker

sent from my amazingly awesome OnePlus One

Don't forget to hit thanks!

I meant 3 lol i said rx1 cause it was on top :silly: