# ATSC A/53 aka AC-3 aka Dolby Digital <ashitaka@gmx.at># from http://www.atsc.org/standards/a_52a.pdf# corrections, additions, etc. are always welcome!## syncword0       beshort         0x0b77  ATSC A/52 aka AC-3 aka Dolby Digital stream,# fscod>4      byte&0xc0       0x00    48 kHz,>4      byte&0xc0       0x40    44.1 kHz,>4      byte&0xc0       0x80    32 kHz,# is this one used for 96 kHz?>4      byte&0xc0       0xc0    reserved frequency,#>5	byte&7 = 0		\b, complete main (CM)>5	byte&7 = 1		\b, music and effects (ME)>5	byte&7 = 2		\b, visually impaired (VI)>5	byte&7 = 3		\b, hearing impaired (HI)>5	byte&7 = 4		\b, dialogue (D)>5	byte&7 = 5		\b, commentary (C)>5	byte&7 = 6		\b, emergency (E)# acmod>6      byte&0xe0       0x00    1+1 front,>6      byte&0xe0       0x20    1 front/0 rear,>6      byte&0xe0       0x40    2 front/0 rear,>6      byte&0xe0       0x60    3 front/0 rear,>6      byte&0xe0       0x80    2 front/1 rear,>6      byte&0xe0       0xa0    3 front/1 rear,>6      byte&0xe0       0xc0    2 front/2 rear,>6      byte&0xe0       0xe0    3 front/2 rear,# lfeon (these may be incorrect)>7      byte&0x40       0x00    LFE off,>7      byte&0x40       0x40    LFE on,#>4	byte&0x3e = 0x00	\b, 32 kbit/s>4	byte&0x3e = 0x02        \b, 40 kbit/s>4	byte&0x3e = 0x04        \b, 48 kbit/s>4	byte&0x3e = 0x06        \b, 56 kbit/s>4	byte&0x3e = 0x08        \b, 64 kbit/s>4	byte&0x3e = 0x0a        \b, 80 kbit/s>4	byte&0x3e = 0x0c        \b, 96 kbit/s>4	byte&0x3e = 0x0e        \b, 112 kbit/s>4	byte&0x3e = 0x10        \b, 128 kbit/s>4	byte&0x3e = 0x12        \b, 160 kbit/s>4	byte&0x3e = 0x14        \b, 192 kbit/s>4	byte&0x3e = 0x16        \b, 224 kbit/s>4	byte&0x3e = 0x18        \b, 256 kbit/s>4	byte&0x3e = 0x1a        \b, 320 kbit/s>4	byte&0x3e = 0x1c        \b, 384 kbit/s>4	byte&0x3e = 0x1e        \b, 448 kbit/s>4	byte&0x3e = 0x20        \b, 512 kbit/s>4	byte&0x3e = 0x22        \b, 576 kbit/s>4	byte&0x3e = 0x24        \b, 640 kbit/s# dsurmod (these may be incorrect)>6      beshort&0x0180  0x0000  Dolby Surround not indicated>6      beshort&0x0180  0x0080  not Dolby Surround encoded>6      beshort&0x0180  0x0100  Dolby Surround encoded>6      beshort&0x0180  0x0180  reserved Dolby Surround mode