\section{Settings}
\begin{center}
  \begin{longtable}{@{}lll@{}}\toprule
    \textbf{Setting} & \textbf{Allowed Values} & \textbf{Unit}\\\midrule
    volume & 0 to 100 & \%\\
    bass & -15 to +15 & dB\\
    treble & -15 to +15 &dB\\
    balance & -100 to +100 & \%\\
    channels & stereo, stereo narrow, & n/a\\
             & stereo wide, & \\
             & mono, mono left, & \\ 
             & mono right, karaoke & \\
    shuffle & on, off & N/A\\
    repeat & off, all, one & N/A\\
    play selected & on, off & N/A\\
    resume & off, ask, ask once, on & N/A\\
    scan min step & 1, 2, 3, 4, 5, 6, 8, 10, 15, & seconds\\
                  & 20, 25, 30, 45, 60 &\\
    scan accel & 0 to 15 & seconds\\
    antiskip & 0 to 7 & seconds\\
    volume fade & on, off & N/A\\
    id3 tag priority & v2-v1, v1-v2 & N/A\\
    sort case & on, off & N/A\\
    show files & all, supported, music, playlists & N/A\\
    follow playlist & on, off & N/A\\
    playlist viewer icons & off,on & N/A\\
    playlist viewer indices & off,on & N/A\\
    playlist viewer track display & track name,full path & N/A\\
    recursive directory insert & off,on & N/A\\
    scroll speed & 1 to 25 & Hz\\
    scroll delay & 0 to 250 & 1/10s\\
    scroll step & 1 to 112 & pixels\\
    bidir limit & 0 to 200 & \% of \\
                &          & screen width\\
    contrast & 0 to 63 & N/A\\
    backlight timeout & off, on, 1, 2, 3, 4, 5, & seconds\\
                      & 6, 7, 8, 9, 10, 15, 20, & \\
                      & 25, 30, 45, 60, 90 & \\
    backlight when plugged & on, off & N/A\\
    disk spindown & 3 to 254 & seconds\\
    battery capacity & 1500 - 3200 & mAh\\
    idle poweroff & off, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, & minutes\\
                  & 15, 30, 45, 60 & \\
    lang & /path/filename.lng & N/A\\
    wps & /path/filename.wps & N/A\\
    autocreate bookmarks & off,on & N/A\\
    autoload bookmarks & off,on & N/A\\
    use most-recent-bookmarks & off,on & N/A\\
    talk dir & off,number,spell,enter.hover & N/A\\
    talk file & off,number,spell & N/A\\
    talk menu & off,on & N/A\\

    \opt{recorder,recorderv2fm}{
      loudness & 0 to 17 & N/A\\
      super bass & on,off & N/A\\
      auto volume & off, 20ms, 2s, 4s, 8s & seconds\\
      MDB enable & on,off & N/A\\
      MDB strength & 0 to 127 & dB\\
      MDB harmonics & 0 to 100 & \%\\
      MDB center frequency & 20 to 300 & Hz\\
      MDB shape & 50 to 300 & Hz\\
      deep discharge & on, off & N/A\\
      trickle charge & on, off & N/A\\
    }

    \opt{HAVE_LCD_BITMAP}{
      peak meter release & 1 to 126 & ?\\
      peak meter hold & off, 200ms, 300ms, 500ms, & N/A \\
                     & 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 15, &\\ 
                     & 20, 30, 1min & \\
      peak meter clip hold & on, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,& N/A \\
                           & 15, 20, 25, 30, 45, 60, 90, 2min, &\\
                           & 3min, 5min, 10min, 20min, &\\
                           & 45min, 90min & \\
      peak meter busy & on, off & N/A\\
      peak meter dbfs & on, off & on = dbfs,\\
                      &         & off = linear\\
      peak meter min  & 0 to 89 (dB) or 0 to 100 (\%) & dB or \%\\
      peak meter max  & 0 to 89 /(dB) or 0 to 100 (\%) & dB or \%\\
      statusbar & on, off & N/A\\
      scrollbar & on, off & N/A\\
      volume display & graphic, numeric & N/A\\
      battery display & graphic, numeric & N/A\\
      font & /path/filename.fnt & N/A\\
      invert & on, off & N/A\\
      disk poweroff & on, off & N/A\\
    }
    \opt{CONFIG_RTC}{
      time format & 12hour, 24hour & N/A\\      
    }
    \opt{HAVE_RECORDING}{
     rec quality & 0 to 7 & 0=smallest size,\\
                 &        & 7=highest quality\\
     rec frequency & 48, 44, 32, 24, 22, 16 & kHz\\
     rec source & mic, line, spdif & N/A\\
     rec channels & mono, stereo & N/A\\
     rec mic gain & 0 to 15 & N/A\\
     rec left gain & 0 to 15 & N/A\\
     rec right gain & 0 to 15 & N/A\\
     editable recordings & off,on & N/A\\
     rec timesplit & off, 0:05, 0:10, 0:15, 0:30, 1:00, & h:mm\\
                   & 2:00, 4:00, 6:00, 8:00, 16:00, 24:00 & \\
     pre-recording time & off, 1 to 30 & s\\
     rec directory & /recordings,current & N/A\\
    }
    \opt{CONFIG_TUNER}{
      Force FM mono & off,on & N/A\\
    }
    \bottomrule
  \end{longtable}
\end{center}