This file is indexed.

/usr/share/ambdec/presets/rectangle-ip.ambdec is in ambdec 0.5.1-4build1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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# AmbDec configuration
# Written by MakeDec-0.6.0 at Tue Sep  2 23:45:48 2008

/description      1/sqrt(3) rectangle  --   max rV at LF, in-phase at HF

/version          2

/dec/hor_order    1
/dec/ver_order    0
/dec/freq_bands   2
/dec/speakers     4
/dec/coeff_scale  fuma

/opt/input_scale  fuma
/opt/nfeff_comp   input
/opt/delay_comp   off
/opt/level_comp   off
/opt/xover_freq   300

/speakers/{
#            id      dist     azim     elev     conn
#-----------------------------------------------------------------------
add_spkr    LF     2.000   30.000    0.000    system:playback_1
add_spkr    RF     2.000  -30.000    0.000    system:playback_2
add_spkr    RB     2.000 -150.000    0.000    system:playback_3
add_spkr    LB     2.000  150.000    0.000    system:playback_4
/}

/lfmatrix/{
order_gain     1.00000  1.00000
#            W        X        Y
#-----------------------------------
add_row    0.35355  0.28868  0.50000
add_row    0.35355  0.28868 -0.50000
add_row    0.35355 -0.28868 -0.50000
add_row    0.35355 -0.28868  0.50000
/}

/hfmatrix/{
order_gain     1.72000  0.76000
#            W        X        Y
#-----------------------------------
add_row    0.35355  0.28868  0.50000
add_row    0.35355  0.28868 -0.50000
add_row    0.35355 -0.28868 -0.50000
add_row    0.35355 -0.28868  0.50000
/}


/end