Parsed: 112430

  public static function channelArrangementLookup($index) {
    static $lookup = array(
      0  => 'A',
      1  => 'A + B (dual mono)',
      2  => 'L + R (stereo)',
      3  => '(L+R) + (L-R) (sum-difference)',
      4  => 'LT + RT (left and right total)',
      5  => 'C + L + R',
      6  => 'L + R + S',
      7  => 'C + L + R + S',
      8  => 'L + R + SL + SR',
      9  => 'C + L + R + SL + SR',
      10 => 'CL + CR + L + R + SL + SR',
      11 => 'C + L + R+ LR + RR + OV',
      12 => 'CF + CR + LF + RF + LR + RR',
      13 => 'CL + C + CR + L + R + SL + SR',
      14 => 'CL + CR + L + R + SL1 + SL2 + SR1 + SR2',
      15 => 'CL + C+ CR + L + R + SL + S + SR',
    );
    return (isset($lookup[$index]) ? $lookup[$index] : 'user-defined');
  }