diff options
author | 2014-03-19 17:23:04 +0000 | |
---|---|---|
committer | 2014-03-19 17:23:04 +0000 | |
commit | 9489f76d46f0f32fd1809c316a3fa15faf7432bd (patch) | |
tree | a1c1cdaf3d289c496659eec328c3055934117012 /src/emu/sound/tms5110r.inc | |
parent | 690cd1a3a1d83af656c4bf0371aa0c1985832ec2 (diff) |
renamed tms5110r.c to tms5110r.inc
Diffstat (limited to 'src/emu/sound/tms5110r.inc')
-rw-r--r-- | src/emu/sound/tms5110r.inc | 588 |
1 files changed, 588 insertions, 0 deletions
diff --git a/src/emu/sound/tms5110r.inc b/src/emu/sound/tms5110r.inc new file mode 100644 index 00000000000..6f2e3c1c7b9 --- /dev/null +++ b/src/emu/sound/tms5110r.inc @@ -0,0 +1,588 @@ +/* TMS51xx and TMS52xx ROM Tables */ + +/* The following table is assumed to be for TMS5100 + * + * US Patent 4209836 + * 4331836 + * 4304964 + * 4234761 + * 4189779 + * 4449233 + * + * All patents give interpolation coefficients + * { 1, 8, 8, 8, 4, 4, 2, 2 } + * This sequence will not calculate the published + * fractions: + * 1 8 0.125 + * 2 8 0.234 + * 3 8 0.330 + * 4 4 0.498 + * 5 4 0.623 + * 6 2 0.717 + * 7 2 0.859 + * 0 1 1.000 + * (remember, 1 is the FIRST entry!) + * + * Instead, { 1, 8, 8, 8, 4, 4, 4, 2 } + * will calculate those coefficients. + * Howeever, after simulating the actual circuit from the patent in pspice, + * the { 1, 8, 8, 8, 4, 4, 2, 2 } pattern is revealed as the correct one. + * Since the real chip uses shifters and not true division to achieve those + * factors, they have been replaced by the shifting coefficients: + * { 0, 3, 3, 3, 2, 2, 1, 1 } + */ + + /* quick note on derivative analysis: + Judging by all the TI chips I (Lord Nightmare) have done this test on, the first derivative between successive values of the LPC tables should follow a roughly triangular or sine shaped curve, the second derivative should start at a value, increase slightly, then decrease smoothly and become negative right around where the LPC curve passes 0, finally increase slightly right near the end. If it doesn't do this, there is probably a wrong value in there somewhere. The pitch and energy tables follow similar patterns but aren't the same since they never cross 0. The chirp table doesn't follow this pattern at all. + */ +/* chip type defines */ +#define SUBTYPE_TMS5100 1 +#define SUBTYPE_M58817 2 +#define SUBTYPE_TMS5110 4 +#define SUBTYPE_TMS5200 8 +#define SUBTYPE_TMS5220 16 +#define SUBTYPE_PAT4335277 32 +#define SUBTYPE_VLM5030 64 + +/* coefficient defines */ +#define MAX_K 10 +#define MAX_SCALE_BITS 6 +#define MAX_SCALE (1<<MAX_SCALE_BITS) +#define COEFF_ENERGY_SENTINEL (511) +#define MAX_CHIRP_SIZE 52 + +struct tms5100_coeffs +{ + int subtype; + int num_k; + int energy_bits; + int pitch_bits; + int kbits[MAX_K]; + unsigned short energytable[MAX_SCALE]; + unsigned short pitchtable[MAX_SCALE]; + int ktable[MAX_K][MAX_SCALE]; + INT16 chirptable[MAX_CHIRP_SIZE]; + INT8 interp_coeff[8]; +}; + +/* +The TMS5100NL was decapped and imaged by digshadow in April, 2013. +The LPC table is verified to match the decap. + It also matches the intended contents of US Patent 4,209,836 and several others. +The chirp table is verified to match the decap, and also matches the patents. +The TMS5100 (development name: TMC0280) and the Speak and spell's "CD2801" chip +are believed to be the same silicon. The 5100 may be the 'A' die revision of +the CD2801 based on die markings. +*/ +static const struct tms5100_coeffs pat4209836_coeff = +{ + /* subtype */ + SUBTYPE_TMS5100, + 10, + 4, + 5, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* E */ + { 0, 0, 1, 1, 2, 3, 5, 7, + 10, 15, 21, 30, 43, 61, 86, COEFF_ENERGY_SENTINEL }, // last rom value is actually really 0, but the tms5110.c code still requires the sentinel value to function correctly, until it is properly updated or merged with tms5220.c + /* P */ + { 0, 41, 43, 45, 47, 49, 51, 53, + 55, 58, 60, 63, 66, 70, 73, 76, + 79, 83, 87, 90, 94, 99, 103, 107, + 112, 118, 123, 129, 134, 140, 147, 153 }, + { + /* K1 */ + { -501, -497, -493, -488, -480, -471, -460, -446, + -427, -405, -378, -344, -305, -259, -206, -148, + -86, -21, 45, 110, 171, 227, 277, 320, + 357, 388, 413, 434, 451, 464, 474, 498 }, + /* K2 */ + { -349, -328, -305, -280, -252, -223, -192, -158, + -124, -88, -51, -14, 23, 60, 97, 133, + 167, 199, 230, 259, 286, 310, 333, 354, + 372, 389, 404, 417, 429, 439, 449, 506 }, + /* K3 */ + { -397, -365, -327, -282, -229, -170, -104, -36, + 35, 104, 169, 228, 281, 326, 364, 396 }, + /* K4 */ + { -369, -334, -293, -245, -191, -131, -67, -1, + 64, 128, 188, 243, 291, 332, 367, 397 }, + /* K5 */ + { -319, -286, -250, -211, -168, -122, -74, -25, + 24, 73, 121, 167, 210, 249, 285, 318 }, + /* K6 */ + { -290, -252, -209, -163, -114, -62, -9, 44, + 97, 147, 194, 238, 278, 313, 344, 371 }, + /* K7 */ + { -291, -256, -216, -174, -128, -80, -31, 19, + 69, 117, 163, 206, 246, 283, 316, 345 }, + /* K8 */ + { -218, -133, -38, 59, 152, 235, 305, 361 }, + /* K9 */ + { -226, -157, -82, -3, 76, 151, 220, 280 }, + /* K10 */ + { -179, -122, -61, 1, 62, 123, 179, 231 }, + }, + /* Chirp table */ + { 0, 42, -44, 50, -78, 18, 37, 20, + 2, -31, -59, 2, 95, 90, 5, 15, + 38, -4, -91,-91, -42,-35,-36, -4, + 37, 43, 34, 33, 15, -1, -8,-18, + -19,-17, -9,-10, -6, 0, 3, 2, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 3, 3, 3, 2, 2, 1, 1, 0 } +}; + +/* The following CD2802 coefficients come from US Patents 4,403,965 and 4,946,391; They have not yet been verified using derivatives. The M58817 seems to work best with these coefficients, so its possible the engineers of that chip copied them from the TI patents. +***These values have not yet been verified against a real CD2802 (used in touch & tell)*** +*/ +static const struct tms5100_coeffs pat4403965_coeff = +{ + /* subtype */ + SUBTYPE_M58817, + 10, + 4, + 5, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* E */ + { 0, 1, 2, 3, 4, 6, 8, 11, + 16, 23, 33, 47, 63, 85, 114, 511 }, + /* P */ + { 0, 41, 43, 45, 47, 49, 51, 53, + 55, 58, 60, 63, 66, 70, 73, 76, + 79, 83, 87, 90, 94, 99, 103, 107, + 112, 118, 123, 129, 134, 140, 147, 153 }, + { + /* K1 */ + { -501, -498, -495, -490, -485, -478, -469, -459, + -446, -431, -412, -389, -362, -331, -295, -253, + -207, -156, -102, -45, 13, 70, 126, 179, + 228, 272, 311, 345, 374, 399, 420, 437 }, + /* K2 */ + { -376, -357, -335, -312, -286, -258, -227, -195, + -161, -124, -87, -49, -10, 29, 68, 106, + 143, 178, 212, 243, 272, 299, 324, 346, + 366, 384, 400, 414, 427, 438, 448, 506 }, + /* K3 */ + { -407, -381, -349, -311, -268, -218, -162, -102, + -39, 25, 89, 149, 206, 257, 302, 341 }, + /* K4 */ + { -290, -252, -209, -163, -114, -62, -9, 44, + 97, 147, 194, 238, 278, 313, 344, 371 }, + /* K5 */ + { -318, -283, -245, -202, -156, -107, -56, -3, + 49, 101, 150, 196, 239, 278, 313, 344 }, + /* K6 */ + { -193, -152, -109, -65, -20, 26, 71, 115, + 158, 198, 235, 270, 301, 330, 355, 377 }, + /* K7 */ + { -254, -218, -180, -140, -97, -53, -8, 36, + 81, 124, 165, 204, 240, 274, 304, 332 }, + /* K8 */ + { -205, -112, -10, 92, 187, 269, 336, 387 }, + /* K9 */ + { -249, -183, -110, -19, 48, 126, 198, 261 }, // on tms5200 the 4th entry is -32 + /* K10 */ + { -190, -133, -73, -10, 53, 115, 173, 227 }, + }, + /* Chirp table */ + { 0, 43, -44, 51,-77, 18, 37, 20, + 2,-30, -58, 3, 96, 91, 5, 15, + 38, -4, -90,-91,-42,-35,-35, -3, + 37, 43, 35, 34, 15, -1, -8,-17, + -19,-17, -9, -9, -6, 1, 4, 3, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 3, 3, 3, 2, 2, 1, 1, 0 } +}; + +/* The following TMS5110A LPC coefficients were directly read from an actual +TMS5110A chip by Jarek Burczynski using the PROMOUT pin, and can be regarded +as established fact. However, the chirp table and the interpolation +coefficients still come from the patents as there doesn't seem to be an easy +way to read those out from the chip without decapping it. +*/ +static const struct tms5100_coeffs tms5110a_coeff = +{ + /* subtype */ + SUBTYPE_TMS5110, + 10, + 4, + 5, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* E */ + { 0, 1, 2, 3, 4, 6, 8, 11, + 16, 23, 33, 47, 63, 85, 114, 511 }, + /* P */ + { 0, 15, 16, 17, 19, 21, 22, 25, + 26, 29, 32, 36, 40, 42, 46, 50, + 55, 60, 64, 68, 72, 76, 80, 84, + 86, 93, 101, 110, 120, 132, 144, 159 }, + { + /* K1 */ + { -501, -498, -497, -495, -493, -491, -488, -482, + -478, -474, -469, -464, -459, -452, -445, -437, + -412, -380, -339, -288, -227, -158, -81, -1, + 80, 157, 226, 287, 337, 379, 411, 436 }, + /* K2 */ + { -328, -303, -274, -244, -211, -175, -138, -99, + -59, -18, 24, 64, 105, 143, 180, 215, + 248, 278, 306, 331, 354, 374, 392, 408, + 422, 435, 445, 455, 463, 470, 476, 506 }, + /* K3 */ + { -441, -387, -333, -279, -225, -171, -117, -63, + -9, 45, 98, 152, 206, 260, 314, 368 }, + /* K4 */ + { -328, -273, -217, -161, -106, -50, 5, 61, + 116, 172, 228, 283, 339, 394, 450, 506 }, + /* K5 */ + { -328, -282, -235, -189, -142, -96, -50, -3, + 43, 90, 136, 182, 229, 275, 322, 368 }, + /* K6 */ + { -256, -212, -168, -123, -79, -35, 10, 54, + 98, 143, 187, 232, 276, 320, 365, 409 }, + /* K7 */ + { -308, -260, -212, -164, -117, -69, -21, 27, + 75, 122, 170, 218, 266, 314, 361, 409 }, + /* K8 */ + { -256, -161, -66, 29, 124, 219, 314, 409 }, + /* K9 */ + { -256, -176, -96, -15, 65, 146, 226, 307 }, + /* K10 */ + { -205, -132, -59, 14, 87, 160, 234, 307 }, + }, + /* Chirp table */ + { 0, 42, -44, 50, -78, 18, 37, 20, + 2, -31, -59, 2, 95, 90, 5, 15, + 38, -4, -91,-91, -42,-35,-36, -4, + 37, 43, 34, 33, 15, -1, -8,-18, + -19,-17, -9,-10, -6, 0, 3, 2, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 3, 3, 3, 2, 2, 1, 1, 0 } +}; + +/* The following coefficients come from US Patent 4,335,277 and 4,581,757. +However, the K10 row of coefficients are entirely missing from both of those +patents. +The K values don't match the values read from an actual TMS5200 chip, but +might match the TMS5111 or some other undiscovered chip? +*/ + // k* is followed by d if done transcription, c if checked for derivative aberrations +static const struct tms5100_coeffs pat4335277_coeff = +{ + /* subtype */ + SUBTYPE_PAT4335277, + 10, + 4, + 6, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* Ed */ + { 0, 1, 2, 3, 4, 6, 8, 11, + 16, 23, 33, 47, 63, 85, 114, 511 }, /* last value is actually 0 in ROM, but 511 is stop sentinel */ + /* Pd */ + { 0, 14, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 25, 26, 27, 28, + 29, 30, 31, 32, 34, 36, 38, 40, + 41, 43, 45, 48, 49, 51, 54, 55, + 57, 60, 62, 64, 68, 72, 74, 76, + 81, 85, 87, 90, 96, 99, 103, 107, + 112, 117, 122, 127, 133, 139, 145, 151, + 157, 164, 171, 178, 186, 194, 202, 211 }, + { + /* K1dc */ + { -507, -505, -503, -501, -497, -493, -488, -481, + -473, -463, -450, -434, -414, -390, -362, -328, + -288, -242, -191, -135, -75, -13, 49, 110, + 168, 221, 269, 311, 348, 379, 404, 426 }, + /* K2dc */ + { -294, -266, -235, -202, -167, -130, -92, -52, + -12, 28, 68, 108, 145, 182, 216, 248, + 278, 305, 330, 352, 372, 390, 406, 420, + 432, 443, 453, 461, 468, 474, 479, 486 }, + /* K3dc */ + { -449, -432, -411, -385, -354, -317, -273, -223, + -167, -107, -43, 22, 87, 148, 206, 258 }, + /* K4dc (first 4-5 values are probably wrong but close) */ + { -321, -270, -220, -157, -97, -40, 25, 89, + 150, 207, 259, 304, 343, 376, 403, 425 }, + /* K5dc */ + { -373, -347, -318, -284, -247, -206, -162, -115, + -65, -15, 36, 86, 135, 181, 224, 263 }, + /* K6dc */ + { -213, -176, -137, -96, -54, -11, 33, 75, + 117, 157, 195, 231, 264, 294, 322, 347 }, + /* K7dc */ + { -294, -264, -232, -198, -161, -122, -82, -41, + 1, 43, 84, 125, 163, 200, 234, 266 }, + /* K8dc */ + { -195, -117, -32, 54, 137, 213, 279, 335 }, + /* K9dc */ + { -122, -55, 15, 83, 149, 210, 264, 311 }, + /* K10 - this was entirely missing from the patent, and I've simply copied the real TMS5220 one, which is wrong */ + { -205, -132, -59, 14, 87, 160, 234, 307 }, + }, + /* Chirp table */ + { 0, 42, -44, 50, -78, 18, 37, 20, + 2, -31, -59, 2, 95, 90, 5, 15, + 38, -4, -91,-91, -42,-35,-36, -4, + 37, 43, 34, 33, 15, -1, -8,-18, + -19,-17, -9,-10, -6, 0, 3, 2, + 1, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 3, 3, 3, 2, 2, 1, 1, 0 } +}; + +/* +The TMS5200CNL was decapped and imaged by digshadow in March, 2013. +It is equivalent to the CD2501E (internally: "TMC0285") chip used + on the TI 99/4(A) speech module. +The LPC table is verified to match the decap. + (It was previously dumped with PROMOUT which matches as well) +The chirp table is verified to match the decap. (sum = 0x3da) +Note that the K coefficients are VERY different from the coefficients given + in the US 4,335,277 patent, which may have been for some sort of prototype or + otherwise intentionally scrambled. The energy and pitch tables, however, are + identical to that patent. +Also note, that the K coefficients are ALMOST identical to the coefficients from the CD2802. +The interpolation coefficients still come from the patents pending verification + of the interpolation counter circuit from the chip decap image. +NOTE FROM DECAP: immediately to the left of each of the K1,2,3,4,5,and 6 + coefficients in the LPC rom are extra columns containing the constants + -510, -502, 313, 318, or in hex 0x202, 0x20A, 0x139, 0x13E. + Those EXACT constants DO appear (rather nonsensically) on the lpc table in US + patent 4,335,277. They don't seem to do anything except take up space and may + be a leftover from an older design predating even the patent. +*/ + +static const struct tms5100_coeffs tms5200_coeff = +{ + /* subtype */ + SUBTYPE_TMS5200, + 10, + 4, + 6, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* E */ + { 0, 1, 2, 3, 4, 6, 8, 11, + 16, 23, 33, 47, 63, 85, 114, 0 }, + /* P */ + { 0, 14, 15, 16, 17, 18, 19, 20, + 21, 22, 23, 24, 25, 26, 27, 28, + 29, 30, 31, 32, 34, 36, 38, 40, + 41, 43, 45, 48, 49, 51, 54, 55, + 57, 60, 62, 64, 68, 72, 74, 76, + 81, 85, 87, 90, 96, 99, 103, 107, + 112, 117, 122, 127, 133, 139, 145, 151, + 157, 164, 171, 178, 186, 194, 202, 211 }, + { + /* K1 */ + { -501, -498, -495, -490, -485, -478, -469, -459, + -446, -431, -412, -389, -362, -331, -295, -253, + -207, -156, -102, -45, 13, 70, 126, 179, + 228, 272, 311, 345, 374, 399, 420, 437 }, + /* K2 */ + { -376, -357, -335, -312, -286, -258, -227, -195, + -161, -124, -87, -49, -10, 29, 68, 106, + 143, 178, 212, 243, 272, 299, 324, 346, + 366, 384, 400, 414, 427, 438, 448, 506 }, + /* K3 */ + { -407, -381, -349, -311, -268, -218, -162, -102, + -39, 25, 89, 149, 206, 257, 302, 341 }, + /* K4 */ + { -290, -252, -209, -163, -114, -62, -9, 44, + 97, 147, 194, 238, 278, 313, 344, 371 }, + /* K5 */ + { -318, -283, -245, -202, -156, -107, -56, -3, + 49, 101, 150, 196, 239, 278, 313, 344 }, + /* K6 */ + { -193, -152, -109, -65, -20, 26, 71, 115, + 158, 198, 235, 270, 301, 330, 355, 377 }, + /* K7 */ + { -254, -218, -180, -140, -97, -53, -8, 36, + 81, 124, 165, 204, 240, 274, 304, 332 }, + /* K8 */ + { -205, -112, -10, 92, 187, 269, 336, 387 }, + /* K9 */ + { -249, -183, -110, -32, 48, 126, 198, 261 }, // verified from decap; on the cd2802 patent the 4th entry is -19 (patent typo?) + /* K10 */ + { -190, -133, -73, -10, 53, 115, 173, 227 }, + }, + /* Chirp table */ + { 0x00, 0x03, 0x0F, 0x28, 0x4C, 0x6C, 0x71, 0x50, + 0x25, 0x26, 0x4C, 0x44, 0x1A, 0x32, 0x3B, 0x13, + 0x37, 0x1A, 0x25, 0x1F, 0x1D, 0x00, 0x00, 0x00, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 0, 3, 3, 3, 2, 2, 1, 1 } +}; + +/* +The TMS5220NL was decapped and imaged by digshadow in April, 2013. +The LPC table table is verified to match the decap. +The chirp table is verified to match the decap. (sum = 0x3da) +Note that all the LPC K* values match the TMS5110a table (as read via PROMOUT) +exactly. +The TMS5220CNL was decapped and imaged by digshadow in April, 2013. +The LPC table table is verified to match the decap and exactly matches TMS5220NL. +The chirp table is verified to match the decap. (sum = 0x3da) +*/ +static const struct tms5100_coeffs tms5220_coeff = +{ + /* subtype */ + SUBTYPE_TMS5220, + 10, + 4, + 6, + { 5, 5, 4, 4, 4, 4, 4, 3, 3, 3 }, + /* E */ + { 0, 1, 2, 3, 4, 6, 8, 11, + 16, 23, 33, 47, 63, 85, 114, 0 }, + /* P */ + { 0, 15, 16, 17, 18, 19, 20, 21, + 22, 23, 24, 25, 26, 27, 28, 29, + 30, 31, 32, 33, 34, 35, 36, 37, + 38, 39, 40, 41, 42, 44, 46, 48, + 50, 52, 53, 56, 58, 60, 62, 65, + 68, 70, 72, 76, 78, 80, 84, 86, + 91, 94, 98, 101, 105, 109, 114, 118, + 122, 127, 132, 137, 142, 148, 153, 159 }, + { + /* K1 */ + { -501, -498, -497, -495, -493, -491, -488, -482, + -478, -474, -469, -464, -459, -452, -445, -437, + -412, -380, -339, -288, -227, -158, -81, -1, + 80, 157, 226, 287, 337, 379, 411, 436 }, + /* K2 */ + { -328, -303, -274, -244, -211, -175, -138, -99, + -59, -18, 24, 64, 105, 143, 180, 215, + 248, 278, 306, 331, 354, 374, 392, 408, + 422, 435, 445, 455, 463, 470, 476, 506 }, + /* K3 */ + { -441, -387, -333, -279, -225, -171, -117, -63, + -9, 45, 98, 152, 206, 260, 314, 368 }, + /* K4 */ + { -328, -273, -217, -161, -106, -50, 5, 61, + 116, 172, 228, 283, 339, 394, 450, 506 }, + /* K5 */ + { -328, -282, -235, -189, -142, -96, -50, -3, + 43, 90, 136, 182, 229, 275, 322, 368 }, + /* K6 */ + { -256, -212, -168, -123, -79, -35, 10, 54, + 98, 143, 187, 232, 276, 320, 365, 409 }, + /* K7 */ + { -308, -260, -212, -164, -117, -69, -21, 27, + 75, 122, 170, 218, 266, 314, 361, 409 }, + /* K8 */ + { -256, -161, -66, 29, 124, 219, 314, 409 }, + /* K9 */ + { -256, -176, -96, -15, 65, 146, 226, 307 }, + /* K10 */ + { -205, -132, -59, 14, 87, 160, 234, 307 }, + }, + /* Chirp table */ + { 0x00, 0x03, 0x0F, 0x28, 0x4C, 0x6C, 0x71, 0x50, + 0x25, 0x26, 0x4C, 0x44, 0x1A, 0x32, 0x3B, 0x13, + 0x37, 0x1A, 0x25, 0x1F, 0x1D, 0x00, 0x00, 0x00, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 0, 3, 3, 3, 2, 2, 1, 1 } +}; + +/* The following Sanyo VLM5030 coefficients are derived from decaps of the chip +done by ogoun, plus image stitching done by John McMaster. The organization of +coefficients beyond k2 is derived from work by Tatsuyuki Satoh. +The actual coefficient rom on the chip die has 5 groups of bits only: +Address | K1A | K1B | K2 | Energy | Pitch | +Decoder | K1A | K1B | K2 | Energy | Pitch | +K1A, K1B and K2 are 10 bits wide, 32 bits long each. +Energy and pitch are both 7 bits wide, 32 bits long each. +K1A holds odd values of K1, K1B holds even values. +K2 holds values for K2 only +K3 and K4 are actually the table index values <<6 +K5 thru K10 are actually the table index values <<7 +The concept of only having non-binary weighted reflection coefficients for the +first two k stages is mentioned in Markel & Gray "Linear Prediction of Speech" +and in Thomas Parsons' "Voice and Speech Processing" + */ +static const struct tms5100_coeffs vlm5030_coeff = +{ + /* subtype */ + SUBTYPE_VLM5030, + 10, + 5, + 5, + { 6, 5, 4, 4, 3, 3, 3, 3, 3, 3 }, + /* E */ + { 0, 1, 2, 3, 5, 6, 7, 9, + 11, 13, 15, 17, 19, 22, 24, 27, + 31, 34, 38, 42, 47, 51, 57, 62, + 68, 75, 82, 89, 98,107,116,127}, + /* P */ + { 0, 21, 22, 23, 24, 25, 26, 27, + 28, 29, 31, 33, 35, 37, 39, 41, + 43, 45, 49, 53, 57, 61, 65, 69, + 73, 77, 85, 93, 101, 109, 117, 125 }, + { + /* K1 */ + /* (NOTE: the order of each table is correct, despite that the index MSb + looks backwards) */ + { 390, 403, 414, 425, 434, 443, 450, 457, + 463, 469, 474, 478, 482, 485, 488, 491, + 494, 496, 498, 499, 501, 502, 503, 504, + 505, 506, 507, 507, 508, 508, 509, 509, + -390,-376,-360,-344,-325,-305,-284,-261, + -237,-211,-183,-155,-125, -95, -64, -32, + 0, 32, 64, 95, 125, 155, 183, 211, + 237, 261, 284, 305, 325, 344, 360, 376 }, + /* K2 */ + { 0, 50, 100, 149, 196, 241, 284, 325, + 362, 396, 426, 452, 473, 490, 502, 510, + 0,-510,-502,-490,-473,-452,-426,-396, /* entry 16(0x10) either has some special function, purpose unknown, or is a manufacturing error and should have been -512 */ + -362,-325,-284,-241,-196,-149,-100, -50 }, + /* K3 */ + /*{ 0, 100, 196, 284, 362, 426, 473, 502, + -510,-490,-452,-396,-325,-241,-149, -50 },*/ + { 0, 64, 128, 192, 256, 320, 384, 448, + -512,-448,-384,-320,-256,-192,-128, -64 }, + /* K4 */ + /*{ 0, 100, 196, 284, 362, 426, 473, 502, + -510,-490,-452,-396,-325,-241,-149, -50 },*/ + { 0, 64, 128, 192, 256, 320, 384, 448, + -512,-448,-384,-320,-256,-192,-128, -64 }, + /* K5 */ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + /* K6 */ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + /* K7 */ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + /* K8 */ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + /* K9 */ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + /* K10 */ + /*{ 0, 196, 362, 473,-510,-452,-325,-149 },*/ + { 0, 128, 256, 384,-512,-384,-256,-128 }, + }, + /* Chirp table */ + { 0,127,127, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0 }, + /* interpolation coefficients */ + { 3, 3, 3, 2, 2, 1, 1, 0 } +}; |