dtmf_t.cc

Express DSP compliant C55x DTMF detector software is proposed in two versions: one with a 5 ms frame

const S16 dtmf_aHiBpI[]={
  -322,   249,   195,   138, -1045,   968,   -78,   592,
 -2502,  2399,   800, -2837,   910,   493,  3368, -7978,
  5447,  1687, -2925, -2502,  1940, 10778,-21933, 14678,
  6715,-20920, 16175, -2166, -5773,  4495,  -965,     0,

};
const S16 dtmf_aHiBpQ[]={
  -476,    18,  -213,   846,  -579,  -405,   278,   810,
   -92, -2822,  3981, -1440,  -421, -2062,  4270,     0,
 -6904,  7049, -1352,  1270, -9656, 12678,   804,-20075,
 24122, -8758, -8970, 13286, -6306,  -330,  1427,     0,

};
const S16 dtmf_aLoBpI[]={
  -516,  -299,   513,   418,     3,   771,   675, -2118,
 -3155,  1119,  4561,  1411, -2282,  -755,  -508, -4770,
 -2414,  9196, 11064, -5528,-17223, -4454, 14202, 11649,
 -5113,-10644, -1699,  4977,  2662,  -867,  -850,     0,

};
const S16 dtmf_aLoBpQ[]={
    73,  -625,  -479,   236,   -14,   -73,  1600,  1798,
 -1988, -4246,  -215,  3844,  1759,  -527,  1615,     0,
 -7676, -6420,  8527, 15058,  -812,-16907, -8950,  9886,
 12128, -1006, -7952, -2818,  2484,  1812,  -121,     0,

};
const S16 dtmf_aDialI[]={
  -728,  -610,  -231,   611,  1823,  2832,  2791,  1121,
 -1945, -5225, -7052, -6140, -2395,  2851,  7382,  9165,
  7382,  2851, -2395, -6140, -7052, -5225, -1945,  1121,
  2791,  2832,  1823,   611,  -231,  -610,  -728,     0,

};
const S16 dtmf_aDialQ[]={
   -86,  -555, -1073, -1412, -1098,   223,  2346,  4367,
  5027,  3432,  -277, -4762, -8009, -8326, -5275,     0,
  5275,  8326,  8009,  4762,   277, -3432, -5027, -4367,
 -2346,  -223,  1098,  1412,  1073,   555,    86,     0,

};

const S16 dtmf_aLo[] = {
  2783,  9397, 10189,  4670, -3743, -9837, -9837, -3743,  4670, 10189,  9397,  2783,
 10332,  5118, -3266, -9627,-10024, -4211,  4211, 10024,  9627,  3266, -5118,-10332,
 -2904, -5228, -7263, -8897,-10039,-10626,-10626,-10039, -8897, -7263, -5228, -2904,
-10298, -9336, -7857, -5945, -3703, -1258,  1258,  3703,  5945,  7857,  9336, 10298,
  6690,  2823, -1508, -5591, -8754,-10478,-10478, -8754, -5591, -1508,  2823,  6690,
  8351, 10321, 10593,  9123,  6153,  2170, -2170, -6153, -9123,-10593,-10321, -8351,
-10503, -2864,  7942,  9964,   965, -9101, -9101,   965,  9964,  7942, -2864,-10503,
 -2046,-10310, -7170,  3900, 10656,  5627, -5627,-10656, -3900,  7170, 10310,  2046,

};

const S16 dtmf_a697[] = {
 -6391,  3498, 10328,  8124, -1185, -9458, -9458, -1185,  8124, 10328,  3498, -6391,
  8582, 10112,  2798, -6963,-10634, -5004,  5004, 10634,  6963, -2798,-10112, -8582,
 -2005,  6914, 10697,  6534, -2483, -9655, -9655, -2483,  6534, 10697,  6914, -2005,
 10510,  8166,  -244, -8473,-10408, -4611,  4611, 10408,  8473,   244, -8166,-10510,
  7013, 10611,  8845,  2609, -4946,-10001,-10001, -4946,  2609,  8845, 10611,  7013,
  8081,  1379, -6021,-10377, -9488, -3804,  3804,  9488, 10377,  6021, -1379, -8081,
  9837, 10393,  6776,   439, -6074,-10149,-10149, -6074,   439,  6776, 10393,  9837,
  4211, -2546, -8281,-10691, -8809, -3390,  3390,  8809, 10691,  8281,  2546, -4211,

};

const S16 dtmf_a770[] = {
  7079,  3222, -1187, -5392, -8674,-10468,-10468, -8674, -5392, -1187,  3222,  7079,
 -8023,-10203,-10634, -9242, -6265, -2215,  2215,  6265,  9242, 10634, 10203,  8023,
  2377, -1093, -4447, -7332, -9443,-10558,-10558, -9443, -7332, -4447, -1093,  2377,
-10433,-10644, -9732, -7793, -5031, -1738,  1738,  5031,  7793,  9732, 10644, 10433,
 -7478, -8505, -9353,-10006,-10448,-10672,-10672,-10448,-10006, -9353, -8505, -7478,
 -7653, -6493, -5197, -3792, -2307,  -775,   775,  2307,  3792,  5197,  6493,  7653,
-10228,-10383,-10508,-10602,-10665,-10696,-10696,-10665,-10602,-10508,-10383,-10228,
 -3142, -2584, -2017, -1445,  -869,  -290,   290,   869,  1445,  2017,  2584,  3142,

};

const S16 dtmf_a852[] = {
 -4448, -6358, -7996, -9290,-10185,-10642,-10642,-10185, -9290, -7996, -6358, -4448,
  9732,  8606,  7110,  5309,  3279,  1109, -1109, -3279, -5309, -7110, -8606, -9732,
  1317, -1965, -5061, -7681, -9578,-10573,-10573, -9578, -7681, -5061, -1965,  1317,
 10619, 10518,  9427,  7449,  4770,  1641, -1641, -4770, -7449, -9427,-10518,-10619,
 10076,  7045,  2230, -3150, -7732,-10356,-10356, -7732, -3150,  2230,  7045, 10076,
  3602,  8053, 10465, 10226,  7396,  2693, -2693, -7396,-10226,-10465, -8053, -3602,
 10468,  9854,  5695,  -512, -6536,-10208,-10208, -6536,  -512,  5695,  9854, 10468,
 -2218,  4171,  9059, 10688,  8472,  3209, -3209, -8472,-10688, -9059, -4171,  2218,

};

const S16 dtmf_a941[] = {
 -1693,  7110, 10691,  6419, -2567, -9668, -9668, -2567,  6419, 10691,  7110, -1693,
-10565, -7996,   446,  8560, 10388,  4585, -4585,-10388, -8560,  -446,  7996, 10565,
 -7438,  2418, 10065,  8517,  -812, -9399, -9399,  -812,  8517, 10065,  2418, -7438,
 -7692,-10423, -3632,  6477, 10669,  5114, -5114,-10669, -6477,  3632, 10423,  7692,
 -9782, -7447,  4639, 10651,  2716, -8776, -8776,  2716, 10651,  4639, -7447, -9782,
  4337, -7683, -9642,  1025, 10350,  6122, -6122,-10350, -1025,  9642,  7683, -4337,
 -5536,-10215,   646, 10525,  4391, -8423, -8423,  4391, 10525,   646,-10215, -5536,
  9157, -3184,-10680, -1929,  9757,  6599, -6599, -9757,  1929, 10680,  3184, -9157,

};

const S16 dtmf_aHi[] = {
 -3943,  2830, -1704,   569,   569, -1704,  2830, -3943,
-15610, 15849,-16010, 16090,-16090, 16010,-15849, 15610,
  9050,  7309,-16092,  8196,  8196,-16092,  7309,  9050,
 13316,-14345,   506, 13858,-13858,  -506, 14345,-13316,
-15640,-12035,  1955, 14258, 14258,  1955,-12035,-15640,
 -3820, 10694, 15981,  7478, -7478,-15981,-10694,  3820,
  9918, 12837, 14899, 15965, 15965, 14899, 12837,  9918,
-12683, -9717, -6103, -2081,  2081,  6103,  9717, 12683,

};

const S16 dtmf_a1209[] = {
 10970, -8215,  5084, -1721, -1721,  5084, -8215, 10970,
-11784, 13847,-15276, 16008,-16008, 15276,-13847, 11784,
  4001, -2872,  1729,  -577,  -577,  1729, -2872,  4001,
-15595, 15842,-16007, 16090,-16090, 16007,-15842, 15595,
-10926,  8178, -5060,  1712,  1712, -5060,  8178,-10926,
-11825, 13868,-15284, 16009,-16009, 15284,-13868, 11825,
-15250, 12499, -8185,  2847,  2847, -8185, 12499,-15250,
 -5162, 10148,-13864, 15846,-15846, 13864,-10148,  5162,

};

const S16 dtmf_a1336[] = {
 -7787, 15320,-14561,  5922,  5922,-14561, 15320, -7787,
 14091, -4951, -6869, 14971,-14971,  6869,  4951,-14091,
   741, 12251,-15764,  7081,  7081,-15764, 12251,   741,
 16083,-10446, -3272, 14459,-14459,  3272, 10446,-16083,
 14681,  1251,-15527,  9260,  9260,-15527,  1251, 14681,
  6609,-16051,  4256, 13171,-13171, -4256, 16051, -6609,
 15969, -4999,-14101, 10266, 10266,-14101, -4999, 15969,
 -2053,-15304,  7770, 12402,-12402, -7770, 15304,  2053,

};

const S16 dtmf_a1477[] = {
 -1819,-15934, -6274, 12748, 12748, -6274,-15934, -1819,
-15997, -2303, 14827,  9833, -9833,-14827,  2303, 15997,
-10643,-15421, -2235, 13554, 13554, -2235,-15421,-10643,
-12080,  4627, 15944,  8688, -8688,-15944, -4627, 12080,
-15014, -6407,  6013, 14854, 14854,  6013, -6407,-15014,
  5814, 14770, 14935,  6211, -6211,-14935,-14770, -5814,
 -8988,   414,  9663, 15337, 15337,  9663,   414, -8988,
 13357, 16095, 12878,  4896, -4896,-12878,-16095,-13357,

};

const S16 dtmf_a1633[] = {
 14570, 15313, 15815, 16068, 16068, 15815, 15313, 14570,
  6851,  4972,  3015,  1010, -1010, -3015, -4972, -6851,
 15662, 15876, 16019, 16091, 16091, 16019, 15876, 15662,
 -3730, -2676, -1610,  -538,   538,  1610,  2676,  3730,
  -156,  6885, 12546, 15691, 15691, 12546,  6885,  -156,
-16099,-14554,-10090, -3604,  3604, 10090, 14554, 16099,
-10161,  -629,  9155, 15273, 15273,  9155,  -629,-10161,
-12488,-16088,-13243, -5095,  5095, 13243, 16088, 12488,

};