общая ГРОМКОСТЬ в openbox

rc.conf

<!-- Keybindings for volume control -->
    <keybind key="C-Down">
      <action name="Execute">
        <execute>amixer -q set PCM 1- unmute</execute>
      </action>
    </keybind>
    <keybind key="C-Up">
      <action name="Execute">
        <execute>amixer -q set PCM 1+ unmute</execute>
      </action>
    </keybind>
<keybind key="C-A-End">
      <action name="Execute">
        <execute>amixer -q set PCM toggle</execute>
      </action>
    </keybind>