path: root/src/nw4r/snd/snd_Util.cpp

#include "nw4r/snd/snd_Util.h"

/* Original source:
 * kiwi515/ogws
 * src/nw4r/snd/snd_Util.cpp
 */

/*******************************************************************************
 * headers
 */

#include "common.h"

#include "nw4r/ut/ut_algorithm.h"

#include "nw4r/NW4RAssert.hpp"

/*******************************************************************************
 * variables
 */

namespace nw4r { namespace snd { namespace detail
{
	// just assuming this is what this number is
	f32 const Util::CALC_LPF_FREQ_INTERCEPT = 0.13561438f;

	// .rodata

	// clang-format off
	f32 const Util::NoteTable[OCTAVE_DIVISION] =
	{
		1.0f,
		1.0594631f,
		1.122462f,
		1.1892071f,
		1.2599211f,
		1.3348398f,
		1.4142135f,
		1.4983071f,
		1.587401f,
		1.6817929f,
		1.7817974f,
		1.8877486f
	};

	f32 const Util::PitchTable[PITCH_DIVISION_RANGE] =
	{
		1.0f,       1.0002257f, 1.0004513f, 1.0006771f, 1.0009029f, 1.0011288f,
		1.0013547f, 1.0015807f, 1.0018067f, 1.0020328f, 1.0022589f, 1.002485f,
		1.0027113f, 1.0029376f, 1.0031638f, 1.0033902f, 1.0036167f, 1.0038432f,
		1.0040697f, 1.0042963f, 1.0045229f, 1.0047495f, 1.0049763f, 1.005203f,
		1.0054299f, 1.0056568f, 1.0058837f, 1.0061107f, 1.0063378f, 1.0065649f,
		1.006792f,  1.0070192f, 1.0072464f, 1.0074737f, 1.007701f,  1.0079285f,
		1.008156f,  1.0083834f, 1.008611f,  1.0088385f, 1.0090662f, 1.0092939f,
		1.0095217f, 1.0097495f, 1.0099773f, 1.0102053f, 1.0104332f, 1.0106612f,
		1.0108893f, 1.0111175f, 1.0113456f, 1.0115738f, 1.0118021f, 1.0120304f,
		1.0122588f, 1.0124872f, 1.0127157f, 1.0129442f, 1.0131727f, 1.0134014f,
		1.01363f,   1.0138588f, 1.0140876f, 1.0143164f, 1.0145453f, 1.0147743f,
		1.0150033f, 1.0152323f, 1.0154614f, 1.0156906f, 1.0159198f, 1.016149f,
		1.0163783f, 1.0166076f, 1.0168371f, 1.0170665f, 1.0172961f, 1.0175256f,
		1.0177553f, 1.0179849f, 1.0182146f, 1.0184444f, 1.0186743f, 1.0189041f,
		1.019134f,  1.019364f,  1.019594f,  1.019824f,  1.0200542f, 1.0202844f,
		1.0205146f, 1.0207449f, 1.0209752f, 1.0212057f, 1.0214361f, 1.0216666f,
		1.0218972f, 1.0221277f, 1.0223584f, 1.0225891f, 1.0228199f, 1.0230507f,
		1.0232816f, 1.0235125f, 1.0237434f, 1.0239744f, 1.0242054f, 1.0244366f,
		1.0246677f, 1.024899f,  1.0251303f, 1.0253617f, 1.025593f,  1.0258244f,
		1.0260559f, 1.0262874f, 1.0265191f, 1.0267507f, 1.0269824f, 1.0272142f,
		1.0274459f, 1.0276778f, 1.0279098f, 1.0281416f, 1.0283737f, 1.0286057f,
		1.0288378f, 1.02907f,   1.0293022f, 1.0295345f, 1.0297668f, 1.0299993f,
		1.0302316f, 1.0304642f, 1.0306966f, 1.0309292f, 1.0311619f, 1.0313946f,
		1.0316273f, 1.0318601f, 1.0320929f, 1.0323259f, 1.0325588f, 1.0327919f,
		1.0330249f, 1.033258f,  1.0334911f, 1.0337244f, 1.0339576f, 1.034191f,
		1.0344243f, 1.0346577f, 1.0348912f, 1.0351248f, 1.0353583f, 1.035592f,
		1.0358257f, 1.0360594f, 1.0362933f, 1.036527f,  1.0367609f, 1.0369949f,
		1.037229f,  1.037463f,  1.0376971f, 1.0379313f, 1.0381655f, 1.0383998f,
		1.0386341f, 1.0388684f, 1.0391029f, 1.0393374f, 1.0395719f, 1.0398065f,
		1.0400412f, 1.0402758f, 1.0405107f, 1.0407454f, 1.0409802f, 1.0412152f,
		1.0414501f, 1.0416851f, 1.0419202f, 1.0421553f, 1.0423905f, 1.0426257f,
		1.042861f,  1.0430963f, 1.0433317f, 1.0435672f, 1.0438026f, 1.0440382f,
		1.0442737f, 1.0445094f, 1.0447451f, 1.0449809f, 1.0452167f, 1.0454526f,
		1.0456885f, 1.0459244f, 1.0461605f, 1.0463965f, 1.0466326f, 1.0468688f,
		1.0471051f, 1.0473413f, 1.0475777f, 1.0478141f, 1.0480505f, 1.048287f,
		1.0485237f, 1.0487603f, 1.0489969f, 1.0492337f, 1.0494704f, 1.0497072f,
		1.049944f,  1.050181f,  1.050418f,  1.050655f,  1.0508921f, 1.0511292f,
		1.0513664f, 1.0516037f, 1.051841f,  1.0520784f, 1.0523158f, 1.0525533f,
		1.0527908f, 1.0530283f, 1.0532659f, 1.0535036f, 1.0537413f, 1.0539792f,
		1.054217f,  1.0544549f, 1.0546929f, 1.0549308f, 1.0551689f, 1.055407f,
		1.0556452f, 1.0558834f, 1.0561217f, 1.05636f,   1.0565984f, 1.0568368f,
		1.0570753f, 1.0573138f, 1.0575525f, 1.0577911f, 1.0580298f, 1.0582685f,
		1.0585073f, 1.0587462f, 1.0589851f, 1.0592241f
	};

	f32 const Util::Decibel2RatioTable[DECIBEL_TABLE_SIZE] =
	{
		0.0f,         3.05492e-5f,  3.0903e-5f,   3.12608e-5f,  3.16228e-5f,
		3.1989e-5f,   3.23594e-5f,  3.27341e-5f,  3.31131e-5f,  3.34965e-5f,
		3.38844e-5f,  3.42768e-5f,  3.46737e-5f,  3.50752e-5f,  3.54813e-5f,
		3.58922e-5f,  3.63078e-5f,  3.67282e-5f,  3.71535e-5f,  3.75837e-5f,
		3.80189e-5f,  3.84592e-5f,  3.89045e-5f,  3.9355e-5f,   3.98107e-5f,
		4.02717e-5f,  4.0738e-5f,   4.12098e-5f,  4.16869e-5f,  4.21697e-5f,
		4.2658e-5f,   4.31519e-5f,  4.36516e-5f,  4.4157e-5f,   4.46684e-5f,
		4.51856e-5f,  4.57088e-5f,  4.62381e-5f,  4.67735e-5f,  4.73151e-5f,
		4.7863e-5f,   4.84172e-5f,  4.89779e-5f,  4.9545e-5f,   5.01187e-5f,
		5.06991e-5f,  5.12861e-5f,  5.188e-5f,    5.24807e-5f,  5.30884e-5f,
		5.37032e-5f,  5.4325e-5f,   5.49541e-5f,  5.55904e-5f,  5.62341e-5f,
		5.68853e-5f,  5.7544e-5f,   5.82103e-5f,  5.88844e-5f,  5.95662e-5f,
		6.0256e-5f,   6.09537e-5f,  6.16595e-5f,  6.23735e-5f,  6.30957e-5f,
		6.38263e-5f,  6.45654e-5f,  6.53131e-5f,  6.60693e-5f,  6.68344e-5f,
		6.76083e-5f,  6.83912e-5f,  6.91831e-5f,  6.99842e-5f,  7.07946e-5f,
		7.16143e-5f,  7.24436e-5f,  7.32825e-5f,  7.4131e-5f,   7.49894e-5f,
		7.58578e-5f,  7.67361e-5f,  7.76247e-5f,  7.85236e-5f,  7.94328e-5f,
		8.03526e-5f,  8.12831e-5f,  8.22243e-5f,  8.31764e-5f,  8.41395e-5f,
		8.51138e-5f,  8.60994e-5f,  8.70964e-5f,  8.81049e-5f,  8.91251e-5f,
		9.01571e-5f,  9.12011e-5f,  9.22571e-5f,  9.33254e-5f,  9.44061e-5f,
		9.54993e-5f,  9.66051e-5f,  9.77237e-5f,  9.88553e-5f,  1.0e-4f,
		1.01158e-4f,  1.02329e-4f,  1.03514e-4f,  1.04713e-4f,  1.05925e-4f,
		1.07152e-4f,  1.08393e-4f,  1.09648e-4f,  1.10917e-4f,  1.12202e-4f,
		1.13501e-4f,  1.14815e-4f,  1.16145e-4f,  1.1749e-4f,   1.1885e-4f,
		1.20226e-4f,  1.21619e-4f,  1.23027e-4f,  1.24451e-4f,  1.25893e-4f,
		1.2735e-4f,   1.28825e-4f,  1.30317e-4f,  1.31826e-4f,  1.33352e-4f,
		1.34896e-4f,  1.36458e-4f,  1.38038e-4f,  1.39637e-4f,  1.41254e-4f,
		1.42889e-4f,  1.44544e-4f,  1.46218e-4f,  1.47911e-4f,  1.49624e-4f,
		1.51356e-4f,  1.53109e-4f,  1.54882e-4f,  1.56675e-4f,  1.58489e-4f,
		1.60325e-4f,  1.62181e-4f,  1.64059e-4f,  1.65959e-4f,  1.6788e-4f,
		1.69824e-4f,  1.71791e-4f,  1.7378e-4f,   1.75792e-4f,  1.77828e-4f,
		1.79887e-4f,  1.8197e-4f,   1.84077e-4f,  1.86209e-4f,  1.88365e-4f,
		1.90546e-4f,  1.92752e-4f,  1.94984e-4f,  1.97242e-4f,  1.99526e-4f,
		2.01837e-4f,  2.04174e-4f,  2.06538e-4f,  2.0893e-4f,   2.11349e-4f,
		2.13796e-4f,  2.16272e-4f,  2.18776e-4f,  2.21309e-4f,  2.23872e-4f,
		2.26464e-4f,  2.29087e-4f,  2.31739e-4f,  2.34423e-4f,  2.37137e-4f,
		2.39883e-4f,  2.42661e-4f,  2.45471e-4f,  2.48313e-4f,  2.51189e-4f,
		2.54097e-4f,  2.5704e-4f,   2.60016e-4f,  2.63027e-4f,  2.66073e-4f,
		2.69153e-4f,  2.7227e-4f,   2.75423e-4f,  2.78612e-4f,  2.81838e-4f,
		2.85102e-4f,  2.88403e-4f,  2.91743e-4f,  2.95121e-4f,  2.98538e-4f,
		3.01995e-4f,  3.05492e-4f,  3.0903e-4f,   3.12608e-4f,  3.16228e-4f,
		3.1989e-4f,   3.23594e-4f,  3.27341e-4f,  3.31131e-4f,  3.34965e-4f,
		3.38844e-4f,  3.42768e-4f,  3.46737e-4f,  3.50752e-4f,  3.54813e-4f,
		3.58922e-4f,  3.63078e-4f,  3.67282e-4f,  3.71535e-4f,  3.75837e-4f,
		3.80189e-4f,  3.84592e-4f,  3.89045e-4f,  3.9355e-4f,   3.98107e-4f,
		4.02717e-4f,  4.0738e-4f,   4.12098e-4f,  4.16869e-4f,  4.21697e-4f,
		4.2658e-4f,   4.31519e-4f,  4.36516e-4f,  4.4157e-4f,   4.46684e-4f,
		4.51856e-4f,  4.57088e-4f,  4.62381e-4f,  4.67735e-4f,  4.73151e-4f,
		4.7863e-4f,   4.84172e-4f,  4.89779e-4f,  4.9545e-4f,   5.01187e-4f,
		5.06991e-4f,  5.12861e-4f,  5.188e-4f,    5.24807e-4f,  5.30884e-4f,
		5.37032e-4f,  5.4325e-4f,   5.49541e-4f,  5.55904e-4f,  5.62341e-4f,
		5.68853e-4f,  5.7544e-4f,   5.82103e-4f,  5.88844e-4f,  5.95662e-4f,
		6.0256e-4f,   6.09537e-4f,  6.16595e-4f,  6.23735e-4f,  6.30957e-4f,
		6.38263e-4f,  6.45654e-4f,  6.53131e-4f,  6.60693e-4f,  6.68344e-4f,
		6.76083e-4f,  6.83912e-4f,  6.91831e-4f,  6.99842e-4f,  7.07946e-4f,
		7.16143e-4f,  7.24436e-4f,  7.32825e-4f,  7.4131e-4f,   7.49894e-4f,
		7.58578e-4f,  7.67361e-4f,  7.76247e-4f,  7.85236e-4f,  7.94328e-4f,
		8.03526e-4f,  8.12831e-4f,  8.22243e-4f,  8.31764e-4f,  8.41395e-4f,
		8.51138e-4f,  8.60994e-4f,  8.70964e-4f,  8.81049e-4f,  8.91251e-4f,
		9.01571e-4f,  9.12011e-4f,  9.22571e-4f,  9.33254e-4f,  9.44061e-4f,
		9.54993e-4f,  9.66051e-4f,  9.77237e-4f,  9.88553e-4f,  0.001f,
		0.001011579f, 0.001023293f, 0.001035142f, 0.001047129f, 0.001059254f,
		0.001071519f, 0.001083927f, 0.001096478f, 0.001109175f, 0.001122018f,
		0.001135011f, 0.001148154f, 0.001161449f, 0.001174898f, 0.001188502f,
		0.001202264f, 0.001216186f, 0.001230269f, 0.001244515f, 0.001258925f,
		0.001273503f, 0.00128825f,  0.001303167f, 0.001318257f, 0.001333521f,
		0.001348963f, 0.001364583f, 0.001380384f, 0.001396368f, 0.001412538f,
		0.001428894f, 0.00144544f,  0.001462177f, 0.001479108f, 0.001496236f,
		0.001513561f, 0.001531087f, 0.001548817f, 0.001566751f, 0.001584893f,
		0.001603245f, 0.00162181f,  0.00164059f,  0.001659587f, 0.001678804f,
		0.001698244f, 0.001717908f, 0.001737801f, 0.001757924f, 0.001778279f,
		0.001798871f, 0.001819701f, 0.001840772f, 0.001862087f, 0.001883649f,
		0.001905461f, 0.001927525f, 0.001949845f, 0.001972423f, 0.001995262f,
		0.002018366f, 0.002041738f, 0.00206538f,  0.002089296f, 0.002113489f,
		0.002137962f, 0.002162719f, 0.002187762f, 0.002213095f, 0.002238721f,
		0.002264644f, 0.002290868f, 0.002317395f, 0.002344229f, 0.002371374f,
		0.002398833f, 0.00242661f,  0.002454709f, 0.002483133f, 0.002511886f,
		0.002540973f, 0.002570396f, 0.00260016f,  0.002630268f, 0.002660725f,
		0.002691535f, 0.002722701f, 0.002754229f, 0.002786121f, 0.002818383f,
		0.002851018f, 0.002884032f, 0.002917427f, 0.002951209f, 0.002985383f,
		0.003019952f, 0.003054921f, 0.003090295f, 0.003126079f, 0.003162278f,
		0.003198895f, 0.003235937f, 0.003273407f, 0.003311311f, 0.003349654f,
		0.003388442f, 0.003427678f, 0.003467369f, 0.003507519f, 0.003548134f,
		0.003589219f, 0.003630781f, 0.003672823f, 0.003715352f, 0.003758374f,
		0.003801894f, 0.003845918f, 0.003890451f, 0.003935501f, 0.003981072f,
		0.00402717f,  0.004073803f, 0.004120975f, 0.004168694f, 0.004216965f,
		0.004265795f, 0.004315191f, 0.004365158f, 0.004415704f, 0.004466836f,
		0.004518559f, 0.004570882f, 0.00462381f,  0.004677351f, 0.004731513f,
		0.004786301f, 0.004841724f, 0.004897788f, 0.004954502f, 0.005011872f,
		0.005069907f, 0.005128614f, 0.005188f,    0.005248075f, 0.005308844f,
		0.005370318f, 0.005432503f, 0.005495409f, 0.005559043f, 0.005623413f,
		0.005688529f, 0.005754399f, 0.005821032f, 0.005888437f, 0.005956621f,
		0.006025596f, 0.006095369f, 0.00616595f,  0.006237348f, 0.006309573f,
		0.006382635f, 0.006456542f, 0.006531306f, 0.006606934f, 0.006683439f,
		0.00676083f,  0.006839116f, 0.00691831f,  0.00699842f,  0.007079458f,
		0.007161434f, 0.00724436f,  0.007328245f, 0.007413102f, 0.007498942f,
		0.007585776f, 0.007673615f, 0.007762471f, 0.007852356f, 0.007943282f,
		0.008035261f, 0.008128305f, 0.008222426f, 0.008317638f, 0.008413951f,
		0.00851138f,  0.008609938f, 0.008709636f, 0.008810489f, 0.008912509f,
		0.009015711f, 0.009120108f, 0.009225714f, 0.009332543f, 0.009440609f,
		0.009549926f, 0.009660509f, 0.009772372f, 0.009885531f, 0.01f,
		0.010115795f, 0.01023293f,  0.010351422f, 0.010471285f, 0.010592537f,
		0.010715193f, 0.010839269f, 0.010964782f, 0.011091748f, 0.011220185f,
		0.011350108f, 0.011481536f, 0.011614486f, 0.011748976f, 0.011885022f,
		0.012022644f, 0.01216186f,  0.012302688f, 0.012445146f, 0.012589254f,
		0.012735031f, 0.012882496f, 0.013031668f, 0.013182567f, 0.013335214f,
		0.013489629f, 0.013645831f, 0.013803843f, 0.013963684f, 0.014125375f,
		0.01428894f,  0.014454398f, 0.014621772f, 0.014791084f, 0.014962357f,
		0.015135612f, 0.015310875f, 0.015488166f, 0.015667511f, 0.015848933f,
		0.016032454f, 0.016218102f, 0.016405897f, 0.016595868f, 0.01678804f,
		0.016982436f, 0.017179083f, 0.017378008f, 0.017579235f, 0.017782794f,
		0.01798871f,  0.01819701f,  0.01840772f,  0.018620871f, 0.01883649f,
		0.019054607f, 0.01927525f,  0.019498445f, 0.019724227f, 0.019952623f,
		0.020183664f, 0.02041738f,  0.020653803f, 0.020892961f, 0.02113489f,
		0.021379622f, 0.021627186f, 0.021877617f, 0.022130948f, 0.02238721f,
		0.022646444f, 0.022908676f, 0.023173947f, 0.023442289f, 0.023713738f,
		0.023988329f, 0.024266101f, 0.024547089f, 0.02483133f,  0.025118863f,
		0.025409726f, 0.025703957f, 0.026001597f, 0.02630268f,  0.02660725f,
		0.026915347f, 0.027227012f, 0.027542287f, 0.027861211f, 0.028183829f,
		0.028510183f, 0.028840315f, 0.02917427f,  0.029512092f, 0.029853826f,
		0.030199517f, 0.030549211f, 0.030902954f, 0.031260792f, 0.03162278f,
		0.031988952f, 0.032359365f, 0.03273407f,  0.03311311f,  0.033496544f,
		0.033884417f, 0.03427678f,  0.034673683f, 0.035075188f, 0.035481337f,
		0.035892192f, 0.036307804f, 0.03672823f,  0.037153523f, 0.03758374f,
		0.03801894f,  0.038459178f, 0.038904514f, 0.03935501f,  0.039810717f,
		0.040271703f, 0.040738028f, 0.041209754f, 0.041686937f, 0.04216965f,
		0.042657953f, 0.043151908f, 0.043651585f, 0.044157047f, 0.044668358f,
		0.045185596f, 0.04570882f,  0.046238102f, 0.046773516f, 0.047315124f,
		0.04786301f,  0.048417237f, 0.04897788f,  0.04954502f,  0.050118722f,
		0.05069907f,  0.05128614f,  0.051880006f, 0.052480746f, 0.053088445f,
		0.05370318f,  0.054325033f, 0.054954085f, 0.055590425f, 0.056234132f,
		0.056885295f, 0.057543993f, 0.05821032f,  0.058884367f, 0.059566215f,
		0.06025596f,  0.06095369f,  0.0616595f,   0.062373485f, 0.06309573f,
		0.06382635f,  0.06456542f,  0.065313056f, 0.06606934f,  0.06683439f,
		0.0676083f,   0.06839117f,  0.0691831f,   0.0699842f,   0.070794575f,
		0.07161434f,  0.0724436f,   0.07328245f,  0.07413103f,  0.07498942f,
		0.07585776f,  0.07673615f,  0.07762471f,  0.07852356f,  0.07943282f,
		0.08035261f,  0.081283055f, 0.082224265f, 0.083176374f, 0.08413951f,
		0.0851138f,   0.08609937f,  0.087096356f, 0.08810489f,  0.0891251f,
		0.090157114f, 0.09120108f,  0.09225714f,  0.09332543f,  0.09440609f,
		0.09549926f,  0.096605085f, 0.09772372f,  0.09885531f,  0.1f,
		0.10115795f,  0.1023293f,   0.10351422f,  0.10471285f,  0.105925374f,
		0.10715193f,  0.10839269f,  0.10964782f,  0.11091748f,  0.11220185f,
		0.11350108f,  0.11481536f,  0.11614486f,  0.117489755f, 0.11885022f,
		0.12022644f,  0.1216186f,   0.12302688f,  0.12445146f,  0.12589253f,
		0.1273503f,   0.12882495f,  0.13031667f,  0.13182567f,  0.13335215f,
		0.1348963f,   0.13645831f,  0.13803843f,  0.13963683f,  0.14125375f,
		0.1428894f,   0.14454398f,  0.14621772f,  0.14791083f,  0.14962357f,
		0.15135613f,  0.15310875f,  0.15488166f,  0.1566751f,   0.15848932f,
		0.16032454f,  0.162181f,    0.16405898f,  0.16595869f,  0.1678804f,
		0.16982436f,  0.17179084f,  0.17378008f,  0.17579237f,  0.17782794f,
		0.17988709f,  0.18197009f,  0.1840772f,   0.18620871f,  0.18836491f,
		0.19054607f,  0.1927525f,   0.19498447f,  0.19724227f,  0.19952624f,
		0.20183663f,  0.20417379f,  0.20653802f,  0.20892961f,  0.2113489f,
		0.21379621f,  0.21627185f,  0.21877617f,  0.22130947f,  0.22387211f,
		0.22646444f,  0.22908677f,  0.23173946f,  0.23442288f,  0.23713738f,
		0.23988329f,  0.24266101f,  0.2454709f,   0.24831331f,  0.25118864f,
		0.25409728f,  0.25703958f,  0.26001596f,  0.2630268f,   0.2660725f,
		0.26915348f,  0.27227014f,  0.27542287f,  0.2786121f,   0.2818383f,
		0.28510183f,  0.28840315f,  0.2917427f,   0.29512092f,  0.29853827f,
		0.30199516f,  0.3054921f,   0.30902955f,  0.31260794f,  0.31622776f,
		0.31988952f,  0.32359365f,  0.3273407f,   0.33113113f,  0.33496544f,
		0.33884415f,  0.34276778f,  0.34673685f,  0.35075188f,  0.3548134f,
		0.35892195f,  0.36307806f,  0.3672823f,   0.37153524f,  0.37583742f,
		0.3801894f,   0.3845918f,   0.38904515f,  0.39355007f,  0.39810717f,
		0.40271702f,  0.40738028f,  0.4120975f,   0.41686937f,  0.4216965f,
		0.4265795f,   0.4315191f,   0.43651584f,  0.44157046f,  0.4466836f,
		0.45185596f,  0.4570882f,   0.46238104f,  0.46773514f,  0.47315127f,
		0.4786301f,   0.48417237f,  0.48977882f,  0.4954502f,   0.5011872f,
		0.50699073f,  0.5128614f,   0.5188f,      0.52480745f,  0.53088444f,
		0.53703177f,  0.5432503f,   0.5495409f,   0.55590427f,  0.56234133f,
		0.5688529f,   0.57543993f,  0.5821032f,   0.58884364f,  0.5956621f,
		0.60255957f,  0.6095369f,   0.61659503f,  0.62373483f,  0.63095737f,
		0.63826346f,  0.6456542f,   0.65313053f,  0.66069347f,  0.6683439f,
		0.67608297f,  0.6839116f,   0.691831f,    0.699842f,    0.70794576f,
		0.7161434f,   0.724436f,    0.7328245f,   0.74131024f,  0.7498942f,
		0.7585776f,   0.76736146f,  0.77624714f,  0.78523564f,  0.7943282f,
		0.8035261f,   0.8128305f,   0.8222427f,   0.83176374f,  0.84139514f,
		0.85113806f,  0.86099374f,  0.8709636f,   0.88104886f,  0.8912509f,
		0.90157115f,  0.91201085f,  0.9225714f,   0.9332543f,   0.94406086f,
		0.9549926f,   0.96605086f,  0.9772372f,   0.9885531f,   1.0f,
		1.0115795f,   1.023293f,    1.0351422f,   1.0471286f,   1.0592537f,
		1.0715193f,   1.0839269f,   1.0964782f,   1.1091748f,   1.1220185f,
		1.1350108f,   1.1481537f,   1.1614486f,   1.1748976f,   1.1885022f,
		1.2022644f,   1.216186f,    1.2302687f,   1.2445146f,   1.2589254f,
		1.2735031f,   1.2882495f,   1.3031667f,   1.3182567f,   1.3335215f,
		1.3489629f,   1.3645831f,   1.3803842f,   1.3963684f,   1.4125376f,
		1.4288939f,   1.4454398f,   1.4621772f,   1.4791083f,   1.4962356f,
		1.5135612f,   1.5310875f,   1.5488166f,   1.5667511f,   1.5848932f,
		1.6032454f,   1.6218101f,   1.6405897f,   1.6595869f,   1.678804f,
		1.6982436f,   1.7179084f,   1.7378008f,   1.7579236f,   1.7782794f,
		1.7988709f,   1.8197008f,   1.840772f,    1.8620871f,   1.8836491f,
		1.9054607f,   1.9275249f,   1.9498446f,   1.9724227f,   1.9952623f
	};

	f32 const Util::Pan2RatioTableSqrt[PAN_TABLE_SIZE] =
	{
		1.0f,        0.99804497f, 0.9960861f,  0.99412334f, 0.99215674f,
		0.9901862f,  0.98821175f, 0.98623335f, 0.98425096f, 0.9822646f,
		0.9802742f,  0.97827977f, 0.9762812f,  0.97427857f, 0.9722718f,
		0.9702609f,  0.96824586f, 0.9662266f,  0.96420306f, 0.96217525f,
		0.9601432f,  0.9581069f,  0.95606613f, 0.9540211f,  0.95197165f,
		0.94991773f, 0.9478594f,  0.9457966f,  0.9437293f,  0.9416574f,
		0.93958104f, 0.9375f,     0.9354144f,  0.93332404f, 0.93122905f,
		0.9291293f,  0.9270248f,  0.92491555f, 0.92280143f, 0.9206825f,
		0.91855866f, 0.9164299f,  0.91429615f, 0.9121575f,  0.91001374f,
		0.9078649f,  0.90571105f, 0.903552f,   0.9013878f,  0.89921844f,
		0.89704376f, 0.89486384f, 0.89267856f, 0.8904879f,  0.8882919f,
		0.88609046f, 0.8838835f,  0.881671f,   0.87945294f, 0.8772293f,
		0.875f,      0.872765f,   0.8705243f,  0.8682777f,  0.8660254f,
		0.8637672f,  0.86150306f, 0.85923296f, 0.85695684f, 0.85467464f,
		0.85238636f, 0.85009193f, 0.84779125f, 0.8454843f,  0.8431711f,
		0.8408515f,  0.8385255f,  0.836193f,   0.833854f,   0.8315084f,
		0.8291562f,  0.8267973f,  0.8244316f,  0.82205915f, 0.8196798f,
		0.8172935f,  0.8149003f,  0.8125f,     0.81009257f, 0.807678f,
		0.8052562f,  0.80282706f, 0.80039054f, 0.7979466f,  0.79549515f,
		0.7930361f,  0.7905694f,  0.788095f,   0.7856128f,  0.7831228f,
		0.78062475f, 0.7781187f,  0.7756046f,  0.7730823f,  0.77055174f,
		0.7680129f,  0.76546556f, 0.7629097f,  0.76034534f, 0.7577722f,
		0.7551904f,  0.75259966f, 0.75f,       0.7473913f,  0.74477345f,
		0.7421464f,  0.73951f,    0.73686415f, 0.73420876f, 0.7315437f,
		0.72886896f, 0.72618437f, 0.7234898f,  0.72078514f, 0.7180703f,
		0.7153452f,  0.71260965f, 0.70986354f, 0.70710677f, 0.7043392f,
		0.70156074f, 0.69877124f, 0.69597054f, 0.6931585f,  0.69033504f,
		0.6875f,     0.6846532f,  0.6817945f,  0.6789238f,  0.6760409f,
		0.6731456f,  0.67023784f, 0.6673174f,  0.6643841f,  0.6614378f,
		0.6584784f,  0.65550554f, 0.65251917f, 0.649519f,   0.646505f,
		0.6434769f,  0.64043444f, 0.63737744f, 0.6343057f,  0.631219f,
		0.6281172f,  0.625f,      0.6218671f,  0.61871845f, 0.6155536f,
		0.61237246f, 0.60917467f, 0.60596f,    0.6027282f,  0.59947896f,
		0.596212f,   0.59292704f, 0.5896238f,  0.586302f,   0.5829612f,
		0.57960117f, 0.5762215f,  0.572822f,   0.5694021f,  0.5659616f,
		0.5625f,     0.559017f,   0.55551213f, 0.551985f,   0.5484353f,
		0.5448624f,  0.5412659f,  0.53764534f, 0.5340002f,  0.53033006f,
		0.52663434f, 0.5229125f,  0.51916397f, 0.5153882f,  0.5115845f,
		0.5077524f,  0.5038911f,  0.5f,        0.49607837f, 0.49212548f,
		0.4881406f,  0.48412293f, 0.4800716f,  0.47598583f, 0.47186464f,
		0.4677072f,  0.4635124f,  0.45927933f, 0.45500687f, 0.4506939f,
		0.44633928f, 0.44194174f, 0.4375f,     0.4330127f,  0.42847842f,
		0.42389563f, 0.41926274f, 0.4145781f,  0.4098399f,  0.40504628f,
		0.40019527f, 0.3952847f,  0.39031237f, 0.38527587f, 0.38017267f,
		0.375f,      0.369755f,   0.36443448f, 0.35903516f, 0.35355338f,
		0.34798527f, 0.3423266f,  0.3365728f,  0.3307189f,  0.3247595f,
		0.31868872f, 0.3125f,     0.30618623f, 0.29973948f, 0.293151f,
		0.286411f,   0.2795085f,  0.2724312f,  0.26516503f, 0.2576941f,
		0.25f,       0.24206147f, 0.2338536f,  0.22534695f, 0.21650635f,
		0.20728905f, 0.19764236f, 0.1875f,     0.17677669f, 0.16535945f,
		0.15309311f, 0.13975425f, 0.125f,      0.10825317f, 0.088388346f,
		0.0625f,     0.0f
	};

	f32 const Util::Pan2RatioTableSinCos[PAN_TABLE_SIZE] =
	{
		1.0f,         0.99998116f,  0.9999247f,   0.9998306f,   0.9996988f,
		0.9995294f,   0.9993224f,   0.99907774f,  0.99879545f,  0.99847555f,
		0.9981181f,   0.99772304f,  0.99729043f,  0.9968203f,   0.9963126f,
		0.9957674f,   0.9951847f,   0.9945646f,   0.993907f,    0.9932119f,
		0.99247956f,  0.99170977f,  0.99090266f,  0.9900582f,   0.9891765f,
		0.9882576f,   0.9873014f,   0.9863081f,   0.98527765f,  0.9842101f,
		0.9831055f,   0.9819639f,   0.98078525f,  0.9795698f,   0.9783174f,
		0.97702813f,  0.9757021f,   0.97433937f,  0.97293997f,  0.9715039f,
		0.97003126f,  0.9685221f,   0.96697646f,  0.96539444f,  0.96377605f,
		0.9621214f,   0.9604305f,   0.95870346f,  0.95694035f,  0.9551412f,
		0.953306f,    0.951435f,    0.94952816f,  0.9475856f,   0.9456073f,
		0.94359344f,  0.94154406f,  0.9394592f,   0.937339f,    0.9351835f,
		0.9329928f,   0.93076694f,  0.9285061f,   0.9262102f,   0.9238795f,
		0.92151403f,  0.9191139f,   0.9166791f,   0.9142098f,   0.91170603f,
		0.909168f,    0.9065957f,   0.9039893f,   0.9013488f,   0.8986745f,
		0.89596623f,  0.8932243f,   0.89044875f,  0.88763964f,  0.8847971f,
		0.8819213f,   0.8790122f,   0.8760701f,   0.873095f,    0.87008697f,
		0.86704624f,  0.86397284f,  0.86086696f,  0.8577286f,   0.854558f,
		0.8513552f,   0.84812033f,  0.8448536f,   0.841555f,    0.8382247f,
		0.8348629f,   0.8314696f,   0.82804507f,  0.8245893f,   0.8211025f,
		0.8175848f,   0.8140363f,   0.81045717f,  0.8068476f,   0.8032075f,
		0.79953724f,  0.7958369f,   0.79210657f,  0.7883464f,   0.78455657f,
		0.7807372f,   0.7768885f,   0.77301043f,  0.76910335f,  0.76516724f,
		0.7612024f,   0.7572088f,   0.7531868f,   0.7491364f,   0.74505776f,
		0.7409511f,   0.7368166f,   0.7326543f,   0.72846437f,  0.7242471f,
		0.72000253f,  0.71573085f,  0.7114322f,   0.70710677f,  0.70275474f,
		0.69837624f,  0.69397146f,  0.68954057f,  0.6850837f,   0.680601f,
		0.6760927f,   0.671559f,    0.66699994f,  0.6624158f,   0.6578067f,
		0.65317285f,  0.6485144f,   0.64383155f,  0.63912445f,  0.6343933f,
		0.62963825f,  0.6248595f,   0.6200572f,   0.6152316f,   0.6103828f,
		0.60551107f,  0.60061646f,  0.5956993f,   0.5907597f,   0.58579785f,
		0.58081394f,  0.57580817f,  0.57078075f,  0.5657318f,   0.56066155f,
		0.55557024f,  0.55045795f,  0.545325f,    0.54017144f,  0.53499764f,
		0.52980363f,  0.52458966f,  0.519356f,    0.51410276f,  0.50883013f,
		0.50353837f,  0.49822766f,  0.4928982f,   0.48755017f,  0.48218378f,
		0.47679922f,  0.47139674f,  0.4659765f,   0.46053872f,  0.45508358f,
		0.44961134f,  0.44412214f,  0.43861625f,  0.43309382f,  0.42755508f,
		0.42200026f,  0.41642955f,  0.41084316f,  0.4052413f,   0.3996242f,
		0.39399204f,  0.38834503f,  0.38268343f,  0.37700742f,  0.3713172f,
		0.36561298f,  0.35989505f,  0.35416353f,  0.34841868f,  0.34266073f,
		0.33688986f,  0.3311063f,   0.3253103f,   0.31950203f,  0.31368175f,
		0.30784965f,  0.30200595f,  0.2961509f,   0.29028466f,  0.28440753f,
		0.2785197f,   0.27262136f,  0.26671275f,  0.2607941f,   0.25486565f,
		0.24892761f,  0.24298018f,  0.2370236f,   0.2310581f,   0.22508392f,
		0.21910124f,  0.21311031f,  0.20711137f,  0.20110464f,  0.19509032f,
		0.18906866f,  0.18303989f,  0.17700422f,  0.17096189f,  0.16491312f,
		0.15885815f,  0.15279719f,  0.14673047f,  0.14065824f,  0.1345807f,
		0.1284981f,   0.12241068f,  0.11631863f,  0.110222206f, 0.10412163f,
		0.09801714f,  0.091908954f, 0.08579731f,  0.07968244f,  0.07356457f,
		0.06744392f,  0.061320737f, 0.055195242f, 0.049067672f, 0.04293826f,
		0.036807224f, 0.030674802f, 0.024541229f, 0.01840673f,  0.012271538f,
		0.006135885f, 0.0f
	};

	f32 const Util::Pan2RatioTableLinear[PAN_TABLE_SIZE] =
	{
		1.0f,        0.99609375f, 0.9921875f,  0.98828125f, 0.984375f,
		0.98046875f, 0.9765625f,  0.97265625f, 0.96875f,    0.96484375f,
		0.9609375f,  0.95703125f, 0.953125f,   0.94921875f, 0.9453125f,
		0.94140625f, 0.9375f,     0.93359375f, 0.9296875f,  0.92578125f,
		0.921875f,   0.91796875f, 0.9140625f,  0.91015625f, 0.90625f,
		0.90234375f, 0.8984375f,  0.89453125f, 0.890625f,   0.88671875f,
		0.8828125f,  0.87890625f, 0.875f,      0.87109375f, 0.8671875f,
		0.86328125f, 0.859375f,   0.85546875f, 0.8515625f,  0.84765625f,
		0.84375f,    0.83984375f, 0.8359375f,  0.83203125f, 0.828125f,
		0.82421875f, 0.8203125f,  0.81640625f, 0.8125f,     0.80859375f,
		0.8046875f,  0.80078125f, 0.796875f,   0.79296875f, 0.7890625f,
		0.78515625f, 0.78125f,    0.77734375f, 0.7734375f,  0.76953125f,
		0.765625f,   0.76171875f, 0.7578125f,  0.75390625f, 0.75f,
		0.74609375f, 0.7421875f,  0.73828125f, 0.734375f,   0.73046875f,
		0.7265625f,  0.72265625f, 0.71875f,    0.71484375f, 0.7109375f,
		0.70703125f, 0.703125f,   0.69921875f, 0.6953125f,  0.69140625f,
		0.6875f,     0.68359375f, 0.6796875f,  0.67578125f, 0.671875f,
		0.66796875f, 0.6640625f,  0.66015625f, 0.65625f,    0.65234375f,
		0.6484375f,  0.64453125f, 0.640625f,   0.63671875f, 0.6328125f,
		0.62890625f, 0.625f,      0.62109375f, 0.6171875f,  0.61328125f,
		0.609375f,   0.60546875f, 0.6015625f,  0.59765625f, 0.59375f,
		0.58984375f, 0.5859375f,  0.58203125f, 0.578125f,   0.57421875f,
		0.5703125f,  0.56640625f, 0.5625f,     0.55859375f, 0.5546875f,
		0.55078125f, 0.546875f,   0.54296875f, 0.5390625f,  0.53515625f,
		0.53125f,    0.52734375f, 0.5234375f,  0.51953125f, 0.515625f,
		0.51171875f, 0.5078125f,  0.50390625f, 0.5f,        0.49609375f,
		0.4921875f,  0.48828125f, 0.484375f,   0.48046875f, 0.4765625f,
		0.47265625f, 0.46875f,    0.46484375f, 0.4609375f,  0.45703125f,
		0.453125f,   0.44921875f, 0.4453125f,  0.44140625f, 0.4375f,
		0.43359375f, 0.4296875f,  0.42578125f, 0.421875f,   0.41796875f,
		0.4140625f,  0.41015625f, 0.40625f,    0.40234375f, 0.3984375f,
		0.39453125f, 0.390625f,   0.38671875f, 0.3828125f,  0.37890625f,
		0.375f,      0.37109375f, 0.3671875f,  0.36328125f, 0.359375f,
		0.35546875f, 0.3515625f,  0.34765625f, 0.34375f,    0.33984375f,
		0.3359375f,  0.33203125f, 0.328125f,   0.32421875f, 0.3203125f,
		0.31640625f, 0.3125f,     0.30859375f, 0.3046875f,  0.30078125f,
		0.296875f,   0.29296875f, 0.2890625f,  0.28515625f, 0.28125f,
		0.27734375f, 0.2734375f,  0.26953125f, 0.265625f,   0.26171875f,
		0.2578125f,  0.25390625f, 0.25f,       0.24609375f, 0.2421875f,
		0.23828125f, 0.234375f,   0.23046875f, 0.2265625f,  0.22265625f,
		0.21875f,    0.21484375f, 0.2109375f,  0.20703125f, 0.203125f,
		0.19921875f, 0.1953125f,  0.19140625f, 0.1875f,     0.18359375f,
		0.1796875f,  0.17578125f, 0.171875f,   0.16796875f, 0.1640625f,
		0.16015625f, 0.15625f,    0.15234375f, 0.1484375f,  0.14453125f,
		0.140625f,   0.13671875f, 0.1328125f,  0.12890625f, 0.125f,
		0.12109375f, 0.1171875f,  0.11328125f, 0.109375f,   0.10546875f,
		0.1015625f,  0.09765625f, 0.09375f,    0.08984375f, 0.0859375f,
		0.08203125f, 0.078125f,   0.07421875f, 0.0703125f,  0.06640625f,
		0.0625f,     0.05859375f, 0.0546875f,  0.05078125f, 0.046875f,
		0.04296875f, 0.0390625f,  0.03515625f, 0.03125f,    0.02734375f,
		0.0234375f,  0.01953125f, 0.015625f,   0.01171875f, 0.0078125f,
		0.00390625f, 0.0f
	};

	u16 const Util::RemoteFilterCoefTable[COEF_TABLE_SIZE][BIQUAD_COEF_COUNT] =
	{
		/* b0      b1      b2      a1      a2 */
		{0x387c, 0x70f7, 0x387c, 0x8144, 0xc13e},
		{0x3549, 0x6a93, 0x3549, 0x88e9, 0xc7f2},
		{0x31c4, 0x6389, 0x31c4, 0x9211, 0xce95},
		{0x2e7c, 0x5cf9, 0x2e7c, 0x9b3e, 0xd422},
		{0x2b6f, 0x56de, 0x2b6f, 0xa44c, 0xd8c7},
		{0x2899, 0x5133, 0x2899, 0xad24, 0xdca7},
		{0x25f7, 0x4bee, 0x25f7, 0xb5ba, 0xdfe4},
		{0x2384, 0x4709, 0x2384, 0xbe07, 0xe294},
		{0x213d, 0x427a, 0x213d, 0xc608, 0xe4ce},
		{0x1f1d, 0x3e3a, 0x1f1d, 0xcdbc, 0xe6a2},
		{0x1d22, 0x3a44, 0x1d22, 0xd525, 0xe81d},
		{0x1b48, 0x3690, 0x1b48, 0xdc45, 0xe94c},
		{0x198d, 0x331a, 0x198d, 0xe31d, 0xea39},
		{0x17ee, 0x2fdc, 0x17ee, 0xe9b0, 0xeaec},
		{0x1669, 0x2cd2, 0x1669, 0xf001, 0xeb6c},
		{0x14fd, 0x29f9, 0x14fd, 0xf613, 0xebbe},
		{0x13a7, 0x274d, 0x13a7, 0xfbe7, 0xebe9},
		{0x1265, 0x24cb, 0x1265, 0x0180, 0xebf1},
		{0x1138, 0x2270, 0x1138, 0x06e2, 0xebd9},
		{0x101c, 0x2039, 0x101c, 0x0c0d, 0xeba6},
		{0x0f12, 0x1e24, 0x0f12, 0x1104, 0xeb5a},
		{0x0e18, 0x1c30, 0x0e18, 0x15c9, 0xeaf8},
		{0x0d2d, 0x1a59, 0x0d2d, 0x1a5d, 0xea84},
		{0x0c50, 0x189f, 0x0c50, 0x1ec3, 0xe9fe},
		{0x0b80, 0x1700, 0x0b80, 0x22fc, 0xe969},
		{0x0abd, 0x1579, 0x0abd, 0x270a, 0xe8c7},
		{0x0a05, 0x140b, 0x0a05, 0x2aed, 0xe81a},
		{0x0959, 0x12b3, 0x0959, 0x2ea9, 0xe763},
		{0x08b8, 0x1170, 0x08b8, 0x323d, 0xe6a3},
		{0x0820, 0x1041, 0x0820, 0x35ac, 0xe5dd},
		{0x0792, 0x0f25, 0x0792, 0x38f6, 0xe510},
		{0x070d, 0x0e1a, 0x070d, 0x3c1d, 0xe43e},
		{0x0690, 0x0d21, 0x0690, 0x3f23, 0xe369},
		{0x061b, 0x0c37, 0x061b, 0x4208, 0xe290},
		{0x05ae, 0x0b5c, 0x05ae, 0x44cd, 0xe1b6},
		{0x0548, 0x0a90, 0x0548, 0x4774, 0xe0da},
		{0x04e8, 0x09d0, 0x04e8, 0x49fe, 0xdffd},
		{0x048f, 0x091e, 0x048f, 0x4c6c, 0xdf20},
		{0x043b, 0x0877, 0x043b, 0x4ebf, 0xde44},
		{0x03ed, 0x07db, 0x03ed, 0x50f8, 0xdd69},
		{0x03a5, 0x0749, 0x03a5, 0x5317, 0xdc90},
		{0x0361, 0x06c2, 0x0361, 0x551f, 0xdbb8},
		{0x0322, 0x0643, 0x0322, 0x5710, 0xdae3},
		{0x02e7, 0x05ce, 0x02e7, 0x58ea, 0xda11},
		{0x02b0, 0x0560, 0x02b0, 0x5aaf, 0xd941},
		{0x027d, 0x04fa, 0x027d, 0x5c60, 0xd875},
		{0x024e, 0x049b, 0x024e, 0x5dfe, 0xd7ad},
		{0x0222, 0x0443, 0x0222, 0x5f88, 0xd6e8},
		{0x01f9, 0x03f1, 0x01f9, 0x6101, 0xd627},
		{0x01d3, 0x03a5, 0x01d3, 0x6269, 0xd56a},
		{0x01af, 0x035f, 0x01af, 0x63c0, 0xd4b1},
		{0x018f, 0x031d, 0x018f, 0x6507, 0xd3fc},
		{0x0170, 0x02e1, 0x0170, 0x6640, 0xd34c},
		{0x0154, 0x02a8, 0x0154, 0x676a, 0xd2a0},
		{0x013a, 0x0274, 0x013a, 0x6887, 0xd1f9},
		{0x0122, 0x0244, 0x0122, 0x6996, 0xd156},
		{0x010c, 0x0217, 0x010c, 0x6a99, 0xd0b7},
		{0x00f7, 0x01ee, 0x00f7, 0x6b90, 0xd01d},
		{0x00e4, 0x01c7, 0x00e4, 0x6c7c, 0xcf87},
		{0x00d2, 0x01a4, 0x00d2, 0x6d5d, 0xcef6},
		{0x00c2, 0x0183, 0x00c2, 0x6e33, 0xce69},
		{0x00b2, 0x0165, 0x00b2, 0x6f00, 0xcde0},
		{0x00a4, 0x0149, 0x00a4, 0x6fc3, 0xcd5c},
		{0x0098, 0x012f, 0x0098, 0x707d, 0xccdc},
		{0x008c, 0x0117, 0x008c, 0x712f, 0xcc60},
		{0x0081, 0x0101, 0x0081, 0x71d9, 0xcbe7},
		{0x0076, 0x00ed, 0x0076, 0x727a, 0xcb73},
		{0x006d, 0x00da, 0x006d, 0x7315, 0xcb03},
		{0x0064, 0x00c9, 0x0064, 0x73a8, 0xca97},
		{0x005c, 0x00b9, 0x005c, 0x7434, 0xca2e},
		{0x0055, 0x00aa, 0x0055, 0x74bb, 0xc9c9},
		{0x004e, 0x009c, 0x004e, 0x753b, 0xc967},
		{0x0048, 0x0090, 0x0048, 0x75b5, 0xc909},
		{0x0042, 0x0084, 0x0042, 0x7629, 0xc8af},
		{0x003d, 0x007a, 0x003d, 0x7699, 0xc857},
		{0x0038, 0x0070, 0x0038, 0x7703, 0xc803},
		{0x0033, 0x0067, 0x0033, 0x7768, 0xc7b1},
		{0x002f, 0x005f, 0x002f, 0x77c9, 0xc763},
		{0x002c, 0x0057, 0x002c, 0x7826, 0xc718},
		{0x0028, 0x0050, 0x0028, 0x787e, 0xc6cf},
		{0x0025, 0x004a, 0x0025, 0x78d2, 0xc689},
		{0x0022, 0x0044, 0x0022, 0x7923, 0xc646},
		{0x001f, 0x003e, 0x001f, 0x7970, 0xc606},
		{0x001d, 0x0039, 0x001d, 0x79b9, 0xc5c7},
		{0x001a, 0x0034, 0x001a, 0x7a00, 0xc58c},
		{0x0018, 0x0030, 0x0018, 0x7a43, 0xc552},
		{0x0016, 0x002c, 0x0016, 0x7a83, 0xc51b},
		{0x0014, 0x0029, 0x0014, 0x7ac0, 0xc4e6},
		{0x0013, 0x0025, 0x0013, 0x7afb, 0xc4b3},
		{0x0011, 0x0022, 0x0011, 0x7b32, 0xc482},
		{0x0010, 0x0020, 0x0010, 0x7b68, 0xc452},
		{0x000e, 0x001d, 0x000e, 0x7b9b, 0xc425},
		{0x000d, 0x001b, 0x000d, 0x7bcc, 0xc3fa},
		{0x000c, 0x0018, 0x000c, 0x7bfa, 0xc3d0},
		{0x000b, 0x0016, 0x000b, 0x7c27, 0xc3a8},
		{0x000a, 0x0015, 0x000a, 0x7c52, 0xc381},
		{0x0009, 0x0013, 0x0009, 0x7c7a, 0xc35c},
		{0x0009, 0x0011, 0x0009, 0x7ca1, 0xc339},
		{0x0008, 0x0010, 0x0008, 0x7cc7, 0xc317},
		{0x0007, 0x000f, 0x0007, 0x7cea, 0xc2f6},
		{0x0007, 0x000d, 0x0007, 0x7d0c, 0xc2d7},
		{0x0006, 0x000c, 0x0006, 0x7d2d, 0xc2b9},
		{0x0006, 0x000b, 0x0006, 0x7d4c, 0xc29c},
		{0x0005, 0x000a, 0x0005, 0x7d6a, 0xc280},
		{0x0005, 0x000a, 0x0005, 0x7d86, 0xc265},
		{0x0004, 0x0009, 0x0004, 0x7da1, 0xc24c},
		{0x0004, 0x0008, 0x0004, 0x7dbb, 0xc234},
		{0x0004, 0x0007, 0x0004, 0x7dd4, 0xc21c},
		{0x0003, 0x0007, 0x0003, 0x7dec, 0xc206},
		{0x0003, 0x0006, 0x0003, 0x7e03, 0xc1f0},
		{0x0003, 0x0006, 0x0003, 0x7e19, 0xc1db},
		{0x0003, 0x0005, 0x0003, 0x7e2e, 0xc1c8},
		{0x0002, 0x0005, 0x0002, 0x7e42, 0xc1b5},
		{0x0002, 0x0004, 0x0002, 0x7e55, 0xc1a2},
		{0x0002, 0x0004, 0x0002, 0x7e67, 0xc191},
		{0x0002, 0x0004, 0x0002, 0x7e79, 0xc180},
		{0x0002, 0x0003, 0x0002, 0x7e89, 0xc170},
		{0x0002, 0x0003, 0x0002, 0x7e99, 0xc161},
		{0x0001, 0x0003, 0x0001, 0x7ea9, 0xc152},
		{0x0001, 0x0003, 0x0001, 0x7eb7, 0xc144},
		{0x0001, 0x0002, 0x0001, 0x7ec5, 0xc136},
		{0x0001, 0x0002, 0x0001, 0x7ed3, 0xc129},
		{0x0001, 0x0002, 0x0001, 0x7ee0, 0xc11d},
		{0x0001, 0x0002, 0x0001, 0x7eec, 0xc111},
		{0x0001, 0x0002, 0x0001, 0x7ef8, 0xc105},
		{0x0001, 0x0002, 0x0001, 0x7f03, 0xc0fa},
		{0x0001, 0x0001, 0x0001, 0x7f0e, 0xc0f0},
		{0x0001, 0x0001, 0x0001, 0x7f18, 0xc0e6}
	};

	u16 const Util::CalcLpfFreqTable[CALC_LPF_FREQ_TABLE_SIZE] =
	{
		   80,   100,   128,
		  160,   200,   256,
		  320,   400,   500,
		  640,   800,  1000,
		 1280,  1600,  2000,
		 2560,  3200,  4000,
		 5120,  6400,  8000,
		10240, 12800, 16000
	};
	// clang-format on

	// .data

	// clang-format off
	f32 const *Util::PanTableTable[PAN_CURVE_NUM] =
	{
		/*[PAN_CURVE_SQRT]	= */Pan2RatioTableSqrt,
		/*[PAN_CURVE_SINCOS]	=*/ Pan2RatioTableSinCos,
		/*[PAN_CURVE_LINEAR]	=*/ Pan2RatioTableLinear,
	};
	// clang-format on
}}} // namespace nw4r::snd::detail

/*******************************************************************************
 * functions
 */

namespace nw4r { namespace snd { namespace detail {

f32 Util::CalcPitchRatio(int pitch)
{
	f32 ratio;

	int octave = 0;
	f32 octave_float = 1.0f;

	while (pitch < 0)
	{
		octave--;
		pitch += OCTAVE_DIVISION * PITCH_DIVISION_RANGE;
	}

	while (pitch >= OCTAVE_DIVISION * PITCH_DIVISION_RANGE)
	{
		octave++;
		pitch -= OCTAVE_DIVISION * PITCH_DIVISION_RANGE;
	}

	while (octave > 0)
	{
		octave_float *= 2.0f;
		octave--;
	}

	while (octave < 0)
	{
		octave_float /= 2.0f;
		octave++;
	}

	int note = pitch / PITCH_DIVISION_RANGE;
	pitch %= PITCH_DIVISION_RANGE;

	ratio = octave_float;

	if (note != 0)
		ratio *= NoteTable[note];

	if (pitch != 0)
		ratio *= PitchTable[pitch];

	return ratio;
}

f32 Util::CalcVolumeRatio(f32 dB)
{
	dB = ut::Clamp(dB, VOLUME_DB_MIN / 10.0f, VOLUME_DB_MAX / 10.0f);

	return Decibel2RatioTable[static_cast<int>(dB * 10.0f) - VOLUME_DB_MIN];
}

f32 Util::CalcPanRatio(f32 pan, PanInfo const &info)
{
	pan = (ut::Clamp(pan, -1.0f, 1.0f) + 1.0f) / 2.0f;

	f32 const *table = PanTableTable[info.curve];
	f32 ratio = table[static_cast<int>(pan * PAN_TABLE_MAX + 0.5f)];

	if (info.centerZeroFlag)
		ratio /= table[PAN_TABLE_CENTER];

	return info.zeroClampFlag ? ut::Clamp(ratio, 0.0f, 1.0f)
	                          : ut::Clamp(ratio, 0.0f, 2.0f);
}

f32 Util::CalcSurroundPanRatio(f32 pan, PanInfo const &info)
{
	pan = ut::Clamp(pan, 0.0f, 2.0f) / 2.0f;

	f32 const *table = PanTableTable[info.curve];
	f32 ratio = table[static_cast<int>(pan * PAN_TABLE_MAX + 0.5f)];

	return ut::Clamp(ratio, 0.0f, 2.0f);
}

u16 Util::CalcLpfFreq(f32 scale)
{
	scale = ut::Clamp(scale, 0.0f, 1.0f);

	u16 freq = 0;

	if (scale < CALC_LPF_FREQ_INTERCEPT)
	{
		freq = CalcLpfFreqTable[0];
	}
	else if (scale >= 0.9f)
	{
		freq = CalcLpfFreqTable[CALC_LPF_FREQ_TABLE_SIZE - 1];
	}
	else
	{
		int idx = (scale - CALC_LPF_FREQ_INTERCEPT) / (1.0f / 3.0f / 10.0f);

		freq = CalcLpfFreqTable[idx];
	}

	return freq;
}

void Util::GetRemoteFilterCoefs(int filter, u16 *b0, u16 *b1, u16 *b2, u16 *a1,
                                u16 *a2)
{
	filter = ut::Clamp(filter, COEF_TABLE_MIN, COEF_TABLE_MAX);

	*b0 = RemoteFilterCoefTable[filter][0];
	*b1 = RemoteFilterCoefTable[filter][1];
	*b2 = RemoteFilterCoefTable[filter][2];
	*a1 = RemoteFilterCoefTable[filter][3];
	*a2 = RemoteFilterCoefTable[filter][4];
}

u16 Util::CalcRandom()
{
	/* ogws leaves this note:
	 *
	 * randq1 :D
	 */

	static unsigned long u = 0x12345678ul;

	u = u * 0x19660d + 0x3c6ef35f;
	return u >> 16;
}

void const *Util::GetDataRefAddressImpl(RefType refType, u32 value,
                                        void const *baseAddress)
{
	if (refType == REFTYPE_OFFSET)
	{
		return ut::AddOffsetToPtr(baseAddress, Util::ReadBigEndian(value));
	}
	else if (refType == REFTYPE_ADDRESS)
	{
		return reinterpret_cast<void const *>(Util::ReadBigEndian(value));
	}
	else
	{
		NW4RPanicMessage_Line(758, "invalid DataRef::RefType");

		return nullptr;
	}
}

}}} // namespace nw4r::snd::detail