set_volume() causes song to stop playing.

[rhaejr]

Issue Report

Description

After a fresh install of Rasbian and getting all my packages redownloaded the songs I am playing with my project just stop anytime I try to use the set_volume() method. Everything worked fine before I reloaded the OS. I can't figure if I have missed some setup that I had done before or what.

Problem reproduction

Fresh Install with dependencies player = OMXPlayer(song) player.set_volume(-1500) Audio drops out completly

Environment details

• OS (lsb_release -a):

  
  Distributor ID: Raspbian
  Description:    Raspbian GNU/Linux 10 (buster)
  Release:        10
  Codename:       buster

| Software | Version |
|----------|---------|
| `python-omxplayer-wrapper` | `0.1.0` |
| `python-dbus` (`dpkg -s python-dbus`) |  `1.2.8-3` |
| `python` (`python --version`) | `3.7.3` |
| `omxplayer` (`omxplayer --version`) | `f06235c` |

-------