dotfiles/.config/xfce4/xfconf/xfce-perchannel-xml/xfce4-mixer.xml

<?xml version="1.0" encoding="UTF-8"?>

<channel name="xfce4-mixer" version="1.0">
  <property name="sound-card" type="string" value="HDANVidiaAlsamixer"/>
  <property name="sound-cards" type="empty">
    <property name="HDANVidiaAlsamixer" type="array">
      <value type="string" value="Общий"/>
      <value type="string" value="Headphone"/>
      <value type="string" value="PCM"/>
      <value type="string" value="Front"/>
      <value type="string" value="Front Mic"/>
      <value type="string" value="Front Mic Boost"/>
      <value type="string" value="Линейный вход"/>
      <value type="string" value="CD"/>
      <value type="string" value="Микрофон"/>
      <value type="string" value="Mic Boost"/>
      <value type="string" value="IEC958 Default PCM"/>
      <value type="string" value="Beep"/>
    </property>
    <property name="A4TECHUSB20PCCameraJAlsamixer" type="array">
      <value type="string" value="Микрофон"/>
    </property>
    <property name="AnalogDevicesAD1988BOSSMixer" type="array">
      <value type="string" value="PCM-2"/>
      <value type="string" value="CD"/>
    </property>
    <property name="PlaybackPulseAudioMixer" type="array">
      <value type="string" value="Master"/>
    </property>
    <property name="CapturePulseAudioMixer" type="array">
      <value type="string" value="Master"/>
    </property>
  </property>
  <property name="window-height" type="int" value="511"/>
  <property name="window-width" type="int" value="733"/>
  <property name="active-card" type="string" value="HDANVidiaAlsamixer"/>
  <property name="volume-step-size" type="uint" value="5"/>
</channel>