I'm looking for a way to boost the headphone output of my Moto X (2013). I have rooted it and installed Alsa Mixer so I should be able to run shell scripts and modify it.

The thing is.. I can't find any good guides for this.

What I'm trying to do: - Boost the volume using a compressor (like radio stations tend to do) - Maybe apply a limiter after that just to be sure I don't blow up my headphones.

Can somebody help me plz?

  • Welcome to the Android Enthusiasts! Have you already tried our powerful search feature, and checked e.g. for volume boost? Was your solution amongst the results? :)
    – Izzy
    Commented Nov 28, 2015 at 12:28

1 Answer 1


My suggestion is to install Viper4Android. You can increase output by (as I recall) 8dB, and besides that, you will get a lot of options to adapt the sound to get the best output. Using it for a couple of years and still haven't found a better alternative.

  • Thanks I stumbled upon this myself yesterday but wanted to try it for a littke before answering my own question. It's a bit of a hassle to get it working (softbricked my phone because I forgot to restore build.prop file permissions) but once it works it really works!
    – REJH
    Commented Nov 29, 2015 at 13:10
  • 1
    In settings, set the UI mode to Expert, you will get all the options available. If you stay in default mode much of the options (including the output dB strength) are hidden.
    – Chapz
    Commented Nov 30, 2015 at 22:50

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