Martin Leese noted that for early channel counts the result
is unique. This correlation has was used in some audio files
that lacked meta-data and which only supported low-order
ambisonics to allow for unambiguous decoding.
The table is complete for all channel counts upto 256.
To see the actual channels present in any given file type
click on it in in the table.
| C | , | possible file type |
| 3 | | (1,0) |
| 4 | | (1,1) |
| 5 | | (2,0) |
| 6 | | (2,1) |
| 7 | | (3,0) |
| 8 | | (3,1) |
| 9 | | (2,2), (4,0) |
| 10 | | (4,1) |
| 11 | | (3,2), (5,0) |
| 12 | | (5,1) |
| 13 | | (4,2), (6,0) |
| 14 | | (6,1) |
| 15 | | (5,2), (7,0) |
| 16 | | (3,3), (7,1) |
| 17 | | (6,2), (8,0) |
| 18 | | (4,3), (8,1) |
| 19 | | (7,2), (9,0) |
| 20 | | (5,3), (9,1) |
| 21 | | (8,2), (10,0) |
| 22 | | (6,3), (10,1) |
| 23 | | (9,2), (11,0) |
| 24 | | (7,3), (11,1) |
| 25 | | (4,4), (10,2), (12,0) |
| 26 | | (8,3), (12,1) |
| 27 | | (5,4), (11,2), (13,0) |
| 28 | | (9,3), (13,1) |
| 29 | | (6,4), (12,2), (14,0) |
| 30 | | (10,3), (14,1) |
| 31 | | (7,4), (13,2), (15,0) |
| 32 | | (11,3), (15,1) |
| 33 | | (8,4), (14,2), (16,0) |
| 34 | | (12,3), (16,1) |
| 35 | | (9,4), (15,2), (17,0) |
| 36 | | (5,5), (13,3), (17,1) |
| 37 | | (10,4), (16,2), (18,0) |
| 38 | | (6,5), (14,3), (18,1) |
| 39 | | (11,4), (17,2), (19,0) |
| 40 | | (7,5), (15,3), (19,1) |
| 41 | | (12,4), (18,2), (20,0) |
| 42 | | (8,5), (16,3), (20,1) |
| 43 | | (13,4), (19,2), (21,0) |
| 44 | | (9,5), (17,3), (21,1) |
| 45 | | (14,4), (20,2), (22,0) |
| 46 | | (10,5), (18,3), (22,1) |
| 47 | | (15,4), (21,2), (23,0) |
| 48 | | (11,5), (19,3), (23,1) |
| 49 | | (6,6), (16,4), (22,2), (24,0) |
| 50 | | (12,5), (20,3), (24,1) |
| 51 | | (7,6), (17,4), (23,2), (25,0) |
| 52 | | (13,5), (21,3), (25,1) |
| 53 | | (8,6), (18,4), (24,2), (26,0) |
| 54 | | (14,5), (22,3), (26,1) |
| 55 | | (9,6), (19,4), (25,2), (27,0) |
| 56 | | (15,5), (23,3), (27,1) |
| 57 | | (10,6), (20,4), (26,2), (28,0) |
| 58 | | (16,5), (24,3), (28,1) |
| 59 | | (11,6), (21,4), (27,2), (29,0) |
| 60 | | (17,5), (25,3), (29,1) |
| 61 | | (12,6), (22,4), (28,2), (30,0) |
| 62 | | (18,5), (26,3), (30,1) |
| 63 | | (13,6), (23,4), (29,2), (31,0) |
| 64 | | (7,7), (19,5), (27,3), (31,1) |
| 65 | | (14,6), (24,4), (30,2), (32,0) |
| 66 | | (8,7), (20,5), (28,3), (32,1) |
| 67 | | (15,6), (25,4), (31,2), (33,0) |
| 68 | | (9,7), (21,5), (29,3), (33,1) |
| 69 | | (16,6), (26,4), (32,2), (34,0) |
| 70 | | (10,7), (22,5), (30,3), (34,1) |
| 71 | | (17,6), (27,4), (33,2), (35,0) |
| 72 | | (11,7), (23,5), (31,3), (35,1) |
| 73 | | (18,6), (28,4), (34,2), (36,0) |
| 74 | | (12,7), (24,5), (32,3), (36,1) |
| 75 | | (19,6), (29,4), (35,2), (37,0) |
| 76 | | (13,7), (25,5), (33,3), (37,1) |
| 77 | | (20,6), (30,4), (36,2), (38,0) |
| 78 | | (14,7), (26,5), (34,3), (38,1) |
| 79 | | (21,6), (31,4), (37,2), (39,0) |
| 80 | | (15,7), (27,5), (35,3), (39,1) |
| 81 | | (8,8), (22,6), (32,4), (38,2), (40,0) |
| 82 | | (16,7), (28,5), (36,3), (40,1) |
| 83 | | (9,8), (23,6), (33,4), (39,2), (41,0) |
| 84 | | (17,7), (29,5), (37,3), (41,1) |
| 85 | | (10,8), (24,6), (34,4), (40,2), (42,0) |
| 86 | | (18,7), (30,5), (38,3), (42,1) |
| 87 | | (11,8), (25,6), (35,4), (41,2), (43,0) |
| 88 | | (19,7), (31,5), (39,3), (43,1) |
| 89 | | (12,8), (26,6), (36,4), (42,2), (44,0) |
| 90 | | (20,7), (32,5), (40,3), (44,1) |
| 91 | | (13,8), (27,6), (37,4), (43,2), (45,0) |
| 92 | | (21,7), (33,5), (41,3), (45,1) |
| 93 | | (14,8), (28,6), (38,4), (44,2), (46,0) |
| 94 | | (22,7), (34,5), (42,3), (46,1) |
| 95 | | (15,8), (29,6), (39,4), (45,2), (47,0) |
| 96 | | (23,7), (35,5), (43,3), (47,1) |
| 97 | | (16,8), (30,6), (40,4), (46,2), (48,0) |
| 98 | | (24,7), (36,5), (44,3), (48,1) |
| 99 | | (17,8), (31,6), (41,4), (47,2), (49,0) |
| 100 | | (9,9), (25,7), (37,5), (45,3), (49,1) |
| 101 | | (18,8), (32,6), (42,4), (48,2), (50,0) |
| 102 | | (10,9), (26,7), (38,5), (46,3), (50,1) |
| 103 | | (19,8), (33,6), (43,4), (49,2), (51,0) |
| 104 | | (11,9), (27,7), (39,5), (47,3), (51,1) |
| 105 | | (20,8), (34,6), (44,4), (50,2), (52,0) |
| 106 | | (12,9), (28,7), (40,5), (48,3), (52,1) |
| 107 | | (21,8), (35,6), (45,4), (51,2), (53,0) |
| 108 | | (13,9), (29,7), (41,5), (49,3), (53,1) |
| 109 | | (22,8), (36,6), (46,4), (52,2), (54,0) |
| 110 | | (14,9), (30,7), (42,5), (50,3), (54,1) |
| 111 | | (23,8), (37,6), (47,4), (53,2), (55,0) |
| 112 | | (15,9), (31,7), (43,5), (51,3), (55,1) |
| 113 | | (24,8), (38,6), (48,4), (54,2), (56,0) |
| 114 | | (16,9), (32,7), (44,5), (52,3), (56,1) |
| 115 | | (25,8), (39,6), (49,4), (55,2), (57,0) |
| 116 | | (17,9), (33,7), (45,5), (53,3), (57,1) |
| 117 | | (26,8), (40,6), (50,4), (56,2), (58,0) |
| 118 | | (18,9), (34,7), (46,5), (54,3), (58,1) |
| 119 | | (27,8), (41,6), (51,4), (57,2), (59,0) |
| 120 | | (19,9), (35,7), (47,5), (55,3), (59,1) |
| 121 | | (10,10), (28,8), (42,6), (52,4), (58,2), (60,0) |
| 122 | | (20,9), (36,7), (48,5), (56,3), (60,1) |
| 123 | | (11,10), (29,8), (43,6), (53,4), (59,2), (61,0) |
| 124 | | (21,9), (37,7), (49,5), (57,3), (61,1) |
| 125 | | (12,10), (30,8), (44,6), (54,4), (60,2), (62,0) |
| 126 | | (22,9), (38,7), (50,5), (58,3), (62,1) |
| 127 | | (13,10), (31,8), (45,6), (55,4), (61,2), (63,0) |
| 128 | | (23,9), (39,7), (51,5), (59,3), (63,1) |
| 129 | | (14,10), (32,8), (46,6), (56,4), (62,2), (64,0) |
| 130 | | (24,9), (40,7), (52,5), (60,3), (64,1) |
| 131 | | (15,10), (33,8), (47,6), (57,4), (63,2), (65,0) |
| 132 | | (25,9), (41,7), (53,5), (61,3), (65,1) |
| 133 | | (16,10), (34,8), (48,6), (58,4), (64,2), (66,0) |
| 134 | | (26,9), (42,7), (54,5), (62,3), (66,1) |
| 135 | | (17,10), (35,8), (49,6), (59,4), (65,2), (67,0) |
| 136 | | (27,9), (43,7), (55,5), (63,3), (67,1) |
| 137 | | (18,10), (36,8), (50,6), (60,4), (66,2), (68,0) |
| 138 | | (28,9), (44,7), (56,5), (64,3), (68,1) |
| 139 | | (19,10), (37,8), (51,6), (61,4), (67,2), (69,0) |
| 140 | | (29,9), (45,7), (57,5), (65,3), (69,1) |
| 141 | | (20,10), (38,8), (52,6), (62,4), (68,2), (70,0) |
| 142 | | (30,9), (46,7), (58,5), (66,3), (70,1) |
| 143 | | (21,10), (39,8), (53,6), (63,4), (69,2), (71,0) |
| 144 | | (11,11), (31,9), (47,7), (59,5), (67,3), (71,1) |
| 145 | | (22,10), (40,8), (54,6), (64,4), (70,2), (72,0) |
| 146 | | (12,11), (32,9), (48,7), (60,5), (68,3), (72,1) |
| 147 | | (23,10), (41,8), (55,6), (65,4), (71,2), (73,0) |
| 148 | | (13,11), (33,9), (49,7), (61,5), (69,3), (73,1) |
| 149 | | (24,10), (42,8), (56,6), (66,4), (72,2), (74,0) |
| 150 | | (14,11), (34,9), (50,7), (62,5), (70,3), (74,1) |
| 151 | | (25,10), (43,8), (57,6), (67,4), (73,2), (75,0) |
| 152 | | (15,11), (35,9), (51,7), (63,5), (71,3), (75,1) |
| 153 | | (26,10), (44,8), (58,6), (68,4), (74,2), (76,0) |
| 154 | | (16,11), (36,9), (52,7), (64,5), (72,3), (76,1) |
| 155 | | (27,10), (45,8), (59,6), (69,4), (75,2), (77,0) |
| 156 | | (17,11), (37,9), (53,7), (65,5), (73,3), (77,1) |
| 157 | | (28,10), (46,8), (60,6), (70,4), (76,2), (78,0) |
| 158 | | (18,11), (38,9), (54,7), (66,5), (74,3), (78,1) |
| 159 | | (29,10), (47,8), (61,6), (71,4), (77,2), (79,0) |
| 160 | | (19,11), (39,9), (55,7), (67,5), (75,3), (79,1) |
| 161 | | (30,10), (48,8), (62,6), (72,4), (78,2), (80,0) |
| 162 | | (20,11), (40,9), (56,7), (68,5), (76,3), (80,1) |
| 163 | | (31,10), (49,8), (63,6), (73,4), (79,2), (81,0) |
| 164 | | (21,11), (41,9), (57,7), (69,5), (77,3), (81,1) |
| 165 | | (32,10), (50,8), (64,6), (74,4), (80,2), (82,0) |
| 166 | | (22,11), (42,9), (58,7), (70,5), (78,3), (82,1) |
| 167 | | (33,10), (51,8), (65,6), (75,4), (81,2), (83,0) |
| 168 | | (23,11), (43,9), (59,7), (71,5), (79,3), (83,1) |
| 169 | | (12,12), (34,10), (52,8), (66,6), (76,4), (82,2), (84,0) |
| 170 | | (24,11), (44,9), (60,7), (72,5), (80,3), (84,1) |
| 171 | | (13,12), (35,10), (53,8), (67,6), (77,4), (83,2), (85,0) |
| 172 | | (25,11), (45,9), (61,7), (73,5), (81,3), (85,1) |
| 173 | | (14,12), (36,10), (54,8), (68,6), (78,4), (84,2), (86,0) |
| 174 | | (26,11), (46,9), (62,7), (74,5), (82,3), (86,1) |
| 175 | | (15,12), (37,10), (55,8), (69,6), (79,4), (85,2), (87,0) |
| 176 | | (27,11), (47,9), (63,7), (75,5), (83,3), (87,1) |
| 177 | | (16,12), (38,10), (56,8), (70,6), (80,4), (86,2), (88,0) |
| 178 | | (28,11), (48,9), (64,7), (76,5), (84,3), (88,1) |
| 179 | | (17,12), (39,10), (57,8), (71,6), (81,4), (87,2), (89,0) |
| 180 | | (29,11), (49,9), (65,7), (77,5), (85,3), (89,1) |
| 181 | | (18,12), (40,10), (58,8), (72,6), (82,4), (88,2), (90,0) |
| 182 | | (30,11), (50,9), (66,7), (78,5), (86,3), (90,1) |
| 183 | | (19,12), (41,10), (59,8), (73,6), (83,4), (89,2), (91,0) |
| 184 | | (31,11), (51,9), (67,7), (79,5), (87,3), (91,1) |
| 185 | | (20,12), (42,10), (60,8), (74,6), (84,4), (90,2), (92,0) |
| 186 | | (32,11), (52,9), (68,7), (80,5), (88,3), (92,1) |
| 187 | | (21,12), (43,10), (61,8), (75,6), (85,4), (91,2), (93,0) |
| 188 | | (33,11), (53,9), (69,7), (81,5), (89,3), (93,1) |
| 189 | | (22,12), (44,10), (62,8), (76,6), (86,4), (92,2), (94,0) |
| 190 | | (34,11), (54,9), (70,7), (82,5), (90,3), (94,1) |
| 191 | | (23,12), (45,10), (63,8), (77,6), (87,4), (93,2), (95,0) |
| 192 | | (35,11), (55,9), (71,7), (83,5), (91,3), (95,1) |
| 193 | | (24,12), (46,10), (64,8), (78,6), (88,4), (94,2), (96,0) |
| 194 | | (36,11), (56,9), (72,7), (84,5), (92,3), (96,1) |
| 195 | | (25,12), (47,10), (65,8), (79,6), (89,4), (95,2), (97,0) |
| 196 | | (13,13), (37,11), (57,9), (73,7), (85,5), (93,3), (97,1) |
| 197 | | (26,12), (48,10), (66,8), (80,6), (90,4), (96,2), (98,0) |
| 198 | | (14,13), (38,11), (58,9), (74,7), (86,5), (94,3), (98,1) |
| 199 | | (27,12), (49,10), (67,8), (81,6), (91,4), (97,2), (99,0) |
| 200 | | (15,13), (39,11), (59,9), (75,7), (87,5), (95,3), (99,1) |
| 201 | | (28,12), (50,10), (68,8), (82,6), (92,4), (98,2), (100,0) |
| 202 | | (16,13), (40,11), (60,9), (76,7), (88,5), (96,3), (100,1) |
| 203 | | (29,12), (51,10), (69,8), (83,6), (93,4), (99,2), (101,0) |
| 204 | | (17,13), (41,11), (61,9), (77,7), (89,5), (97,3), (101,1) |
| 205 | | (30,12), (52,10), (70,8), (84,6), (94,4), (100,2), (102,0) |
| 206 | | (18,13), (42,11), (62,9), (78,7), (90,5), (98,3), (102,1) |
| 207 | | (31,12), (53,10), (71,8), (85,6), (95,4), (101,2), (103,0) |
| 208 | | (19,13), (43,11), (63,9), (79,7), (91,5), (99,3), (103,1) |
| 209 | | (32,12), (54,10), (72,8), (86,6), (96,4), (102,2), (104,0) |
| 210 | | (20,13), (44,11), (64,9), (80,7), (92,5), (100,3), (104,1) |
| 211 | | (33,12), (55,10), (73,8), (87,6), (97,4), (103,2), (105,0) |
| 212 | | (21,13), (45,11), (65,9), (81,7), (93,5), (101,3), (105,1) |
| 213 | | (34,12), (56,10), (74,8), (88,6), (98,4), (104,2), (106,0) |
| 214 | | (22,13), (46,11), (66,9), (82,7), (94,5), (102,3), (106,1) |
| 215 | | (35,12), (57,10), (75,8), (89,6), (99,4), (105,2), (107,0) |
| 216 | | (23,13), (47,11), (67,9), (83,7), (95,5), (103,3), (107,1) |
| 217 | | (36,12), (58,10), (76,8), (90,6), (100,4), (106,2), (108,0) |
| 218 | | (24,13), (48,11), (68,9), (84,7), (96,5), (104,3), (108,1) |
| 219 | | (37,12), (59,10), (77,8), (91,6), (101,4), (107,2), (109,0) |
| 220 | | (25,13), (49,11), (69,9), (85,7), (97,5), (105,3), (109,1) |
| 221 | | (38,12), (60,10), (78,8), (92,6), (102,4), (108,2), (110,0) |
| 222 | | (26,13), (50,11), (70,9), (86,7), (98,5), (106,3), (110,1) |
| 223 | | (39,12), (61,10), (79,8), (93,6), (103,4), (109,2), (111,0) |
| 224 | | (27,13), (51,11), (71,9), (87,7), (99,5), (107,3), (111,1) |
| 225 | | (14,14), (40,12), (62,10), (80,8), (94,6), (104,4), (110,2), (112,0) |
| 226 | | (28,13), (52,11), (72,9), (88,7), (100,5), (108,3), (112,1) |
| 227 | | (15,14), (41,12), (63,10), (81,8), (95,6), (105,4), (111,2), (113,0) |
| 228 | | (29,13), (53,11), (73,9), (89,7), (101,5), (109,3), (113,1) |
| 229 | | (16,14), (42,12), (64,10), (82,8), (96,6), (106,4), (112,2), (114,0) |
| 230 | | (30,13), (54,11), (74,9), (90,7), (102,5), (110,3), (114,1) |
| 231 | | (17,14), (43,12), (65,10), (83,8), (97,6), (107,4), (113,2), (115,0) |
| 232 | | (31,13), (55,11), (75,9), (91,7), (103,5), (111,3), (115,1) |
| 233 | | (18,14), (44,12), (66,10), (84,8), (98,6), (108,4), (114,2), (116,0) |
| 234 | | (32,13), (56,11), (76,9), (92,7), (104,5), (112,3), (116,1) |
| 235 | | (19,14), (45,12), (67,10), (85,8), (99,6), (109,4), (115,2), (117,0) |
| 236 | | (33,13), (57,11), (77,9), (93,7), (105,5), (113,3), (117,1) |
| 237 | | (20,14), (46,12), (68,10), (86,8), (100,6), (110,4), (116,2), (118,0) |
| 238 | | (34,13), (58,11), (78,9), (94,7), (106,5), (114,3), (118,1) |
| 239 | | (21,14), (47,12), (69,10), (87,8), (101,6), (111,4), (117,2), (119,0) |
| 240 | | (35,13), (59,11), (79,9), (95,7), (107,5), (115,3), (119,1) |
| 241 | | (22,14), (48,12), (70,10), (88,8), (102,6), (112,4), (118,2), (120,0) |
| 242 | | (36,13), (60,11), (80,9), (96,7), (108,5), (116,3), (120,1) |
| 243 | | (23,14), (49,12), (71,10), (89,8), (103,6), (113,4), (119,2), (121,0) |
| 244 | | (37,13), (61,11), (81,9), (97,7), (109,5), (117,3), (121,1) |
| 245 | | (24,14), (50,12), (72,10), (90,8), (104,6), (114,4), (120,2), (122,0) |
| 246 | | (38,13), (62,11), (82,9), (98,7), (110,5), (118,3), (122,1) |
| 247 | | (25,14), (51,12), (73,10), (91,8), (105,6), (115,4), (121,2), (123,0) |
| 248 | | (39,13), (63,11), (83,9), (99,7), (111,5), (119,3), (123,1) |
| 249 | | (26,14), (52,12), (74,10), (92,8), (106,6), (116,4), (122,2), (124,0) |
| 250 | | (40,13), (64,11), (84,9), (100,7), (112,5), (120,3), (124,1) |
| 251 | | (27,14), (53,12), (75,10), (93,8), (107,6), (117,4), (123,2), (125,0) |
| 252 | | (41,13), (65,11), (85,9), (101,7), (113,5), (121,3), (125,1) |
| 253 | | (28,14), (54,12), (76,10), (94,8), (108,6), (118,4), (124,2), (126,0) |
| 254 | | (42,13), (66,11), (86,9), (102,7), (114,5), (122,3), (126,1) |
| 255 | | (29,14), (55,12), (77,10), (95,8), (109,6), (119,4), (125,2), (127,0) |
| 256 | | (15,15), (43,13), (67,11), (87,9), (103,7), (115,5), (123,3), (127,1) |