Qualcomm sd820 S7/S7E Headphone Volume Boost [root]

Just thought I'd put this up because I find the stock headphones volume way too low on my Qualcomm S7E.
TO MAKE HEADPHONES LOUDER:
- the mixer_paths.xml is set up different on our SD820 S7/S7E, so here's how to make headphone volume louder, if you're so inclined.
- usually the file is located at /system/etc, though I have both /root/etc and /system/etc, and I needed to edit /root/etc to make it stick.
The file you need to modify is mixer_paths_tasha.xml. In there, look for the following code snippet:
Code:
<path name="headset">
<path name="ear"/>
<ctl name="COMP1 Switch" value="1"/>
<ctl name="COMP2 Switch" value="1"/>
<ctl name="HPHL Volume" value="20"/>
<ctl name="HPHR Volume" value="20"/>
<ctl name="RX1 Mix Digital Volume" value="76"/>
<ctl name="RX2 Mix Digital Volume" value="76"/>
</path>

<path name="headset-44.1">
<path name="ear-44.1"/>
<ctl name="COMP1 Switch" value="1"/>
<ctl name="COMP2 Switch" value="1"/>
<ctl name="HPHL Volume" value="20"/>
<ctl name="HPHR Volume" value="20"/>
<ctl name="RX1 Digital Volume" value="76"/>
<ctl name="RX2 Digital Volume" value="76"/>
</path>
The analog gain, "HPHL/R Volume" is already maxed out at 20. You can safely raise the various "Digital Volume" entries by 8 dB to 84 without adding any distortion. Beyond 84 (likely up to 124!) it'll likely distort, though I've personally put mine at 87 :/

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