[HTC Desire 610] gallownik:
So I made some changes and i think phone is louder now.

Differences:

$ diff mixer_paths.xml.old mixer_paths.xml
28,35c28,35
< <ctl name="DEC1 Volume" value="84" />
< <ctl name="DEC2 Volume" value="84" />
< <ctl name="DEC3 Volume" value="84" />
< <ctl name="DEC4 Volume" value="84" />
< <ctl name="IIR1 INP1 Volume" value="84" />
< <ctl name="IIR1 INP2 Volume" value="84" />
< <ctl name="IIR1 INP3 Volume" value="84" />
< <ctl name="IIR1 INP4 Volume" value="84" />
---
> <ctl name="DEC1 Volume" value="87" />
> <ctl name="DEC2 Volume" value="87" />
> <ctl name="DEC3 Volume" value="87" />
> <ctl name="DEC4 Volume" value="87" />
> <ctl name="IIR1 INP1 Volume" value="87" />
> <ctl name="IIR1 INP2 Volume" value="87" />
> <ctl name="IIR1 INP3 Volume" value="87" />
> <ctl name="IIR1 INP4 Volume" value="87" />
774,777c774,777
< <ctl name="HPHL Volume" value="12" />
< <ctl name="HPHR Volume" value="12" />
< <ctl name="RX1 Digital Volume" value="83" />
< <ctl name="RX2 Digital Volume" value="83" />
---
> <ctl name="HPHL Volume" value="11" />
> <ctl name="HPHR Volume" value="11" />
> <ctl name="RX1 Digital Volume" value="85" />
> <ctl name="RX2 Digital Volume" value="85" />
784,785c784,785
< <ctl name="RX1 Digital Volume" value="84" />
< <ctl name="RX2 Digital Volume" value="84" />
---
> <ctl name="RX1 Digital Volume" value="85" />
> <ctl name="RX2 Digital Volume" value="85" />
791,794c791,794
< <ctl name="HPHL Volume" value="13" />
< <ctl name="HPHR Volume" value="13" />
< <ctl name="RX1 Digital Volume" value="84" />
< <ctl name="RX2 Digital Volume" value="84" />
---
> <ctl name="HPHL Volume" value="11" />
> <ctl name="HPHR Volume" value="11" />
> <ctl name="RX1 Digital Volume" value="85" />
> <ctl name="RX2 Digital Volume" value="85" />
809,810c809,810
< <ctl name="HPHL Volume" value="13" />
< <ctl name="HPHR Volume" value="13" />
---
> <ctl name="HPHL Volume" value="11" />
> <ctl name="HPHR Volume" value="11" />
826,829c826,829
< <ctl name="RX3 Digital Volume" value="83" />
< <ctl name="RX4 Digital Volume" value="83" />
< <ctl name="LINEOUT1 Volume" value="10" />
< <ctl name="LINEOUT2 Volume" value="10" />
---
> <ctl name="RX3 Digital Volume" value="87" />
> <ctl name="RX4 Digital Volume" value="87" />
> <ctl name="LINEOUT1 Volume" value="12" />
> <ctl name="LINEOUT2 Volume" value="12" />
835,838c835,838
< <ctl name="RX3 Digital Volume" value="83" />
< <ctl name="RX4 Digital Volume" value="83" />
< <ctl name="LINEOUT1 Volume" value="10" />
< <ctl name="LINEOUT2 Volume" value="10" />
---
> <ctl name="RX3 Digital Volume" value="88" />
> <ctl name="RX4 Digital Volume" value="88" />
> <ctl name="LINEOUT1 Volume" value="12" />
> <ctl name="LINEOUT2 Volume" value="12" />
844,847c844,847
< <ctl name="RX3 Digital Volume" value="83" />
< <ctl name="RX4 Digital Volume" value="83" />
< <ctl name="LINEOUT1 Volume" value="10" />
< <ctl name="LINEOUT2 Volume" value="10" />
---
> <ctl name="RX3 Digital Volume" value="88" />
> <ctl name="RX4 Digital Volume" value="88" />
> <ctl name="LINEOUT1 Volume" value="12" />
> <ctl name="LINEOUT2 Volume" value="12" />
853,856c853,856
< <ctl name="RX3 Digital Volume" value="83" />
< <ctl name="RX4 Digital Volume" value="83" />
< <ctl name="LINEOUT1 Volume" value="10" />
< <ctl name="LINEOUT2 Volume" value="10" />
---
> <ctl name="RX3 Digital Volume" value="87" />
> <ctl name="RX4 Digital Volume" value="87" />
> <ctl name="LINEOUT1 Volume" value="11" />
> <ctl name="LINEOUT2 Volume" value="11" />