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ref: 66fa8ef996ffb3ded8ad1f9b6eb756727e0aa705
dir: /dsp/piano.h/

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//Parameters for piano.dsp
//©Romain Michon (rmichon@ccrma.stanford.edu), 2011
//licence: FAUST-STK

// translated to C

static double lookupValue(double *points, int numpoints, double x)
{
	// Note: Assumes points are monotonically increasing in X!

	int i=0;
	while (x>points[i*2] && i<numpoints)
		i++;

	if (i==0)
		return points[1];

	if (i>=numpoints)
		return points[(numpoints-1)*2+1];

	double ratio = (x - points[(i-1)*2]) / (points[i*2] - points[(i-1)*2]);

	return points[(i-1)*2+1]*(1-ratio) + points[i*2+1]*(ratio);
}

#define lookup(t,x) lookupValue(t, nelem(t)/2, x)

/* PianoDriver.sb */
static double noteOffDelayTime[] = {
	89.000,3.000,
	93.000,2.000,
	95.000,1.500,
	99.782,1.020,
	108.000,0.300,
};

/* pianoDriverC.sb */
/* Coupling Filter */

static double singleStringDecayRate[] = {
	21.000,-1.500,
	24.000,-1.500,
	28.000,-1.500,
	29.000,-6.000,
	36.000,-6.000,
	42.000,-6.100,
	48.000,-7.000,
	52.836,-7.000,
	60.000,-7.300,
	66.000,-7.700,
	72.000,-8.000,
	78.000,-8.800,
	84.000,-10.000,
	88.619,-11.215,
	92.368,-12.348,
	95.684,-13.934,
	99.000,-15.000
};

static double singleStringZero[] = {
	21.000,-1.000,
	24.000,-1.000,
	28.000,-1.000,
	29.000,-1.000,
	32.534,-1.000,
	36.000,-0.700,
	42.000,-0.400,
	48.000,-0.200,
	54.000,-0.120,
	60.000,-0.080,
	66.000,-0.070,
	72.000,-0.070,
	79.000,-0.065,
	84.000,-0.063,
	88.000,-0.060,
	96.000,-0.050,
	99.000,-0.050
};

static double singleStringPole[] = {
	21.000,0.350,
	24.604,0.318,
	26.335,0.279,
	28.000,0.250,
	32.000,0.150,
	36.000,0.000,
	42.000,0.000,
	48.000,0.000,
	54.000,0.000,
	60.000,0.000,
	66.000,0.000,
	72.000,0.000,
	76.000,0.000,
	84.000,0.000,
	88.000,0.000,
	96.000,0.000,
	99.000,0.000
};

static double releaseLoopGain[] = {
	21.000,0.865,
	24.000,0.880,
	29.000,0.896,
	36.000,0.910,
	48.000,0.920,
	60.000,0.950,
	72.000,0.965,
	84.000,0.988,
	88.000,0.997,
	99.000,0.988
};

static double detuningHz[] = {
	21.000,0.003,
	24.000,0.003,
	28.000,0.003,
	29.000,0.060,
	31.000,0.100,
	36.000,0.110,
	42.000,0.120,
	48.000,0.200,
	54.000,0.200,
	60.000,0.250,
	66.000,0.270,
	72.232,0.300,
	78.000,0.350,
	84.000,0.500,
	88.531,0.582,
	92.116,0.664,
	95.844,0.793,
	99.000,1.000
};

static double stiffnessCoefficient[] = {
	21.000,-0.850,
	23.595,-0.850,
	27.055,-0.830,
	29.000,-0.700,
	37.725,-0.516,
	46.952,-0.352,
	60.000,-0.250,
	73.625,-0.036,
	93.810,-0.006,
	99.000,1.011
};

static double strikePosition[] = {
	21.000,0.050,
	24.000,0.050,
	28.000,0.050,
	35.000,0.050,
	41.000,0.050,
	42.000,0.125,
	48.000,0.125,
	60.000,0.125,
	72.000,0.125,
	84.000,0.125,
	96.000,0.125,
	99.000,0.125
};

static double EQGain[] = {
	21.000,2.000,
	24.000,2.000,
	28.000,2.000,
	30.000,2.000,
	35.562,1.882,
	41.000,1.200,
	42.000,0.600,
	48.000,0.500,
	54.000,0.500,
	59.928,0.502,
	66.704,0.489,
	74.201,0.477,
	91.791,1.000,
	99.000,1.000
};

static double EQBandwidthFactor[] = {
	21.000,5.000,
	24.112,5.000,
	28.000,5.000,
	35.000,4.956,
	41.000,6.000,
	42.000,2.000,
	48.773,1.072,
	57.558,1.001,
	63.226,1.048,
	69.178,1.120,
	72.862,1.525,
	80.404,2.788,
	97.659,1.739
};

/* PianoDriverA */
/* HammerFilter */

static double loudPole[] = {
	21.000,0.875,
	23.719,0.871,
	27.237,0.836,
	28.996,0.828,
	32.355,0.820,
	36.672,0.816,
	40.671,0.820,
	45.788,0.812,
	47.867,0.812,
	54.000,0.810,
	60.000,0.800,
	66.000,0.800,
	72.000,0.810,
	78.839,0.824,
	84.446,0.844,
	89.894,0.844,
	96.463,0.848,
	103.512,0.840,
	107.678,0.840
};

static double softPole[] = {
	21.000,0.990,
	24.000,0.990,
	28.000,0.990,
	29.000,0.990,
	36.000,0.990,
	42.000,0.990,
	48.000,0.985,
	54.000,0.970,
	60.000,0.960,
	66.000,0.960,
	72.000,0.960,
	78.000,0.970,
	84.673,0.975,
	91.157,0.990,
	100.982,0.970,
	104.205,0.950
};

static double normalizedVelocity[] = {
	0.000,0.000,
	0.170,0.318,
	0.316,0.546,
	0.460,0.709,
	0.599,0.825,
	0.717,0.894,
	0.841,0.945,
	1.000,1.000
};

static double loudGain[] = {
	21.873,0.891,
	25.194,0.870,
	30.538,0.848,
	35.448,0.853,
	41.513,0.842,
	47.434,0.826,
	53.644,0.820,
	60.720,0.815,
	65.630,0.820,
	72.995,0.853,
	79.060,0.920,
	85.270,1.028,
	91.624,1.247,
	95.668,1.296,
	99.000,1.300,
	100.000,1.100
};

static double softGain[] = {
	20.865,0.400,
	22.705,0.400,
	25.960,0.400,
	28.224,0.400,
	31.196,0.400,
	36.715,0.400,
	44.499,0.400,
	53.981,0.400,
	60.000,0.350,
	66.000,0.350,
	72.661,0.350,
	81.435,0.430,
	88.311,0.450,
	93.040,0.500,
	96.434,0.500
};

/* Soundboard */

static double sustainPedalLevel[] = {
	21.000,0.050,
	24.000,0.050,
	31.000,0.030,
	36.000,0.025,
	48.000,0.010,
	60.000,0.005,
	66.000,0.003,
	72.000,0.002,
	78.000,0.002,
	84.000,0.003,
	90.000,0.003,
	96.000,0.003,
	108.000,0.002
};

static double DryTapAmpT60[] = {
	21.001,0.491,
	26.587,0.498,
	34.249,0.470,
	40.794,0.441,
	47.977,0.392,
	55.000,0.370,
	60.000,0.370,
	66.000,0.370,
	71.934,0.370,
	78.000,0.370,
	83.936,0.390,
	88.557,0.387, 
	92.858,0.400,
	97.319,0.469,
	102.400,0.500,
	107.198,0.494
};

static double DryTapAmpCurrent = 0.15;

static double DCBa1[] = {
	21.000,-0.999,
	24.000,-0.999,
	30.000,-0.999,
	36.000,-0.999,
	42.000,-0.999,
	48.027,-0.993,
	60.000,-0.995,
	72.335,-0.960,
	78.412,-0.924,
	84.329,-0.850,
	87.688,-0.770,
	91.000,-0.700,
	92.000,-0.910,
	96.783,-0.850,
	99.000,-0.800,
	100.000,-0.850,
	104.634,-0.700,
	107.518,-0.500
};

/* pianoDriverB */
/* High Notes */

static double secondStageAmpRatio[] = {
	82.277,-18.508,
	88.000,-30.000,
	90.000,-30.000,
	93.451,-30.488,
	98.891,-30.633,
	107.573,-30.633
};

static double r1_1db[] = {
	100.000,-75.000,
	103.802,-237.513,
	108.000,-400.000
};

static double r1_2db[] = {
	98.388,-16.562,
	100.743,-75.531,
	103.242,-154.156,
	108.000,-300.000
};

double r2db[2*2] = {
	100.000,-115.898,
	107.858,-250.000
};

double r3db[2*2] = {
	100.000,-150.000,
	108.000,-400.000
};

double secondPartialFactor[2*2] = {
	88.000,2.000,
	108.000,2.100
};

double thirdPartialFactor[2*2] = {
	88.000,3.100,
	108.000,3.100
};

double bq4_gEarBalled[6*2] = {
	100.000,0.040,
	102.477,0.100,
	104.518,0.300,
	106.000,0.500,
	107.000,1.000,
	108.000,1.500
};

#define getValueDryTapAmpT60(x) lookup(DryTapAmpT60, x)
#define getValueSustainPedalLevel(x) lookup(sustainPedalLevel, x)
#define getValueLoudPole(x) lookup(loudPole, x)
#define getValuePoleValue(x) lookup(poleValue, x)
#define getValueLoudGain(x) lookup(loudGain, x)
#define getValueSoftGain(x) lookup(softGain, x)
#define getValueDCBa1(x) lookup(DCBa1, x)
#define getValuer1_1db(x) lookup(r1_1db, x)
#define getValuer1_2db(x) lookup(r1_2db, x)
#define getValuer2db(x) lookup(r2db, x)
#define getValuer3db(x) lookup(r3db, x)
#define getValueSecondStageAmpRatio(x) lookup(secondStageAmpRatio, x)
#define getValueSecondPartialFactor(x) lookup(secondPartialFactor, x)
#define getValueThirdPartialFactor(x) lookup(thirdPartialFactor, x)
#define getValueBq4_gEarBalled(x) lookup(bq4_gEarBalled, x)
#define getValueStrikePosition(x) lookup(strikePosition, x)
#define getValueEQBandWidthFactor(x) lookup(EQBandwidthFactor, x)
#define getValueEQGain(x) lookup(EQGain, x)
#define getValueDetuningHz(x) lookup(detuningHz, x)
#define getValueSingleStringDecayRate(x) lookup(singleStringDecayRate, x)
#define getValueSingleStringZero(x) lookup(singleStringZero, x)
#define getValueSingleStringPole(x) lookup(singleStringPole, x)
#define getValueStiffnessCoefficient(x) lookup(stiffnessCoefficient, x)
#define getValueReleaseLoopGain(x) lookup(releaseLoopGain, x)

//Harpsichord

static double loopFilterb0[] = {
	35.000,0.94373,
	36.000,0.94731,
	46.000,0.94731,
	47.000,0.96202,
	52.000,0.96202,
	53.000,0.97477,
	58.000,0.97477,
	59.000,0.97733,
	64.000,0.97733,
	65.000,0.97971,
	70.000,0.97971,
	71.000,0.97971,
	76.000,0.97971,
	77.000,0.98698,
	82.000,0.98698,
	83.000,0.98462,
	86.000,0.98462,
	87.000,0.98611,
};

static double loopFilterb1[] = {
	35.000,0.60010,
	36.000,-0.59124,
	46.000,-0.59124,
	47.000,-0.21243,
	52.000,-0.21243,
	53.000,-0.39280,
	58.000,-0.39280,
	59.000,-0.48307,
	64.000,-0.48307,
	65.000,0.51965,
	70.000,0.51965,
	71.000,0.51965,
	76.000,0.51965,
	77.000,-0.42463,
	82.000,-0.42463,
	83.000,0.85655,
	86.000,0.85655,
	87.000,0.68851,
};

static double loopFilterb2[] = {
	35.000,-0.00360,
	36.000,-0.12249,
	46.000,-0.12249,
	47.000,-0.16044,
	52.000,-0.16044,
	53.000,-0.21680,
	58.000,-0.21680,
	59.000,-0.16346,
	64.000,-0.16346,
	65.000,0.22162,
	70.000,0.22162,
	71.000,0.22162,
	76.000,0.22162,
	77.000,-0.14973,
	82.000,-0.14973,
	83.000,0.24937,
	86.000,0.24937,
	87.000,0.14838,
};

static double loopFiltera1[] = {
	35.000,0.5941,
	36.000,-0.65928,
	46.000,-0.65928,
	47.000,-0.24222,
	52.000,-0.24222,
	53.000,-0.41402,
	58.000,-0.41402,
	59.000,-0.50837,
	64.000,-0.50837,
	65.000,0.51263,
	70.000,0.51263,
	71.000,0.51263,
	76.000,0.51263,
	77.000,-0.43976,
	82.000,-0.43976,
	83.000,0.85396,
	86.000,0.85396,
	87.000,0.68332,
};

static double loopFiltera2[] = {
	35.000,-0.02641,
	36.000,-0.10275,
	46.000,-0.10275,
	47.000,-0.15842,
	52.000,-0.15842,
	53.000,-0.21653,
	58.000,-0.21653,
	59.000,-0.15833,
	64.000,-0.15833,
	65.000,0.22025,
	70.000,0.22025,
	71.000,0.22025,
	76.000,0.22025,
	77.000,-0.14583,
	82.000,-0.14583,
	83.000,0.24405,
	86.000,0.24405,
	87.000,0.14370,
};

#define getValueLoopFilterb0(x) lookup(LoopFilterb0, x)
#define getValueLoopFilterb1(x) lookup(LoopFilterb1, x)
#define getValueLoopFilterb2(x) lookup(LoopFilterb2, x)
#define getValueLoopFiltera1(x) lookup(LoopFiltera1, x)
#define getValueLoopFiltera2(x) lookup(LoopFiltera2, x)

//bass

static double bassLoopFilterb0[] = {
	24.000,0.54355,
	26.000,0.54355,
	27.000,0.55677,
	29.000,0.55677,
	32.000,0.55677,
	33.000,0.83598,
	36.000,0.83598,
	43.000,0.83598,
	44.000,0.88292,
	48.000,0.88292,
	51.000,0.88292,
	52.000,0.77805,
	54.000,0.77805,
	57.000,0.77805,
	58.000,0.91820,
	60.000,0.91820,
	61.000,0.91820,
	63.000,0.94594,
	65.000,0.91820,
};

static double bassLoopFilterb1[] = {
	24.000,-0.36586,
	26.000,-0.36586,
	27.000,-0.37628,
	29.000,-0.37628,
	32.000,-0.37628,
	33.000,-0.60228,
	36.000,-0.60228,
	43.000,-0.60228,
	44.000,-0.65721,
	48.000,-0.65721,
	51.000,-0.65721,
	52.000,-0.51902,
	54.000,-0.51902,
	57.000,-0.51902,
	58.000,-0.80765,
	60.000,-0.80765,
	61.000,-0.80765,
	63.000,-0.83230,
	65.000,-0.83230,
};

static double bassLoopFiltera1[] = {
	24.000,-0.81486,
	26.000,-0.81486,
	27.000,-0.81147,
	29.000,-0.81147,
	32.000,-0.81147,
	33.000,-0.76078,
	36.000,-0.76078,
	43.000,-0.76078,
	44.000,-0.77075,
	48.000,-0.77075,
	51.000,-0.77075,
	52.000,-0.73548,
	54.000,-0.73548,
	57.000,-0.73548,
	58.000,-0.88810,
	60.000,-0.88810,
	61.000,-0.88810,
	63.000,-0.88537,
	65.000,-0.88537,
};

#define getValueBassLoopFilterb0(x) lookup(BassLoopFilterb0, x)
#define getValueBassLoopFilterb1(x) lookup(BassLoopFilterb1, x)
#define getValueBassLoopFiltera1(x) lookup(BassLoopFiltera1, x)