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/*
* Copyright (C) 2020 Linux Studio Plugins Project <https://lsp-plug.in/>
* (C) 2020 Vladimir Sadovnikov <sadko4u@gmail.com>
*
* This file is part of lsp-dsp-units
* Created on: 19 нояб. 2020 г.
*
* lsp-dsp-units is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* any later version.
*
* lsp-dsp-units is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with lsp-dsp-units. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LSP_PLUG_IN_DSP_UNITS_CONST_H_
#define LSP_PLUG_IN_DSP_UNITS_CONST_H_
#define LSP_DSP_UNITS_DEFAULT_SAMPLE_RATE 48000 /* Default sample rate */
#define LSP_DSP_UNITS_AIR_ADIABATIC_INDEX 1.4 /* Adiabatic index for the Air */
#define LSP_DSP_UNITS_AIR_MOLAR_MASS 28.98 /* Molar mass of the air [g/mol] */
#define LSP_DSP_UNITS_GAS_CONSTANT 8.3144598 /* Gas constant [ j/(mol * K) } */
#define LSP_DSP_UNITS_TEMP_ABS_ZERO -273.15 /* Temperature of the absolute zero [ C ] */
#define LSP_DSP_UNITS_SPEC_FREQ_MIN 10.0f /* Minimum frequency range [ Hz ] */
#define LSP_DSP_UNITS_SPEC_FREQ_MAX 24000.0f /* Maximum frequency range [ Hz ] */
#define LSP_DSP_UNITS_SOUND_SPEED_M_S 340.29f /* The default sound speed [ m / s ] */
// Gain levels in decibels
#define GAIN_AMP_P_96_DB 3.98107e+4 /* +96 dB */
#define GAIN_AMP_P_84_DB 1.5849e+4 /* +84 dB */
#define GAIN_AMP_P_72_DB 3981.073 /* +72 dB */
#define GAIN_AMP_P_60_DB 1000.0 /* +60 dB */
#define GAIN_AMP_P_48_DB 251.18861 /* +48 dB */
#define GAIN_AMP_P_36_DB 63.09575 /* +36 dB */
#define GAIN_AMP_P_24_DB 15.84893 /* +24 dB */
#define GAIN_AMP_P_12_DB 3.98107 /* +12 dB */
#define GAIN_AMP_P_6_DB 1.99526 /* +6 dB */
#define GAIN_AMP_P_3_DB 1.412536 /* +3 dB */
#define GAIN_AMP_0_DB 1.0 /* 0 dB */
#define GAIN_AMP_M_3_DB 0.707946 /* -3 dB */
#define GAIN_AMP_M_6_DB 0.50118 /* -6 dB */
#define GAIN_AMP_M_9_DB 0.354813 /* -9 dB */
#define GAIN_AMP_M_12_DB 0.25119 /* -12 dB */
#define GAIN_AMP_M_18_DB 0.12589 /* -18 dB */
#define GAIN_AMP_M_24_DB 0.06310 /* -24 dB */
#define GAIN_AMP_M_36_DB 0.01585 /* -36 dB */
#define GAIN_AMP_M_48_DB 3.98107e-3 /* -48 dB */
#define GAIN_AMP_M_60_DB 0.001 /* -60 dB */
#define GAIN_AMP_M_72_DB 2.5119e-4 /* -72 dB */
#define GAIN_AMP_M_84_DB 6.309575e-5 /* -84 dB */
#define GAIN_AMP_M_96_DB 1.5849e-5 /* -96 dB */
#define GAIN_AMP_M_108_DB 3.98107e-6 /* -60 dB */
#define GAIN_AMP_M_120_DB 1e-6 /* -120 dB */
#define GAIN_AMP_M_132_DB 2.5119e-7 /* -132 dB */
#define GAIN_AMP_M_144_DB 6.309575e-8 /* -144 dB */
#define GAIN_AMP_M_INF_DB 0.0 /* -inf dB */
#define GAIN_AMP_MIN 1e-6
#define GAIN_AMP_MAX 1e+6
#define GAIN_AMP_M_20_DB 0.1 /* -20 dB */
#define GAIN_AMP_M_40_DB 0.01 /* -40 dB */
#define GAIN_AMP_M_80_DB 0.0001 /* -80 dB */
#define GAIN_AMP_M_100_DB 0.00001 /* -100 dB */
#define GAIN_AMP_M_140_DB 0.0000001 /* -140 dB */
#define GAIN_AMP_M_160_DB 0.00000001 /* -160 dB */
#define GAIN_AMP_P_20_DB 10.0 /* +20 dB */
#define GAIN_AMP_P_40_DB 100.0 /* +40 dB */
#define GAIN_AMP_P_80_DB 10000.0 /* +80 dB */
#define GAIN_AMP_N_12_DB GAIN_AMP_M_12_DB
#define GAIN_AMP_N_24_DB GAIN_AMP_M_24_DB
#define GAIN_AMP_N_36_DB GAIN_AMP_M_36_DB
#define GAIN_AMP_N_48_DB GAIN_AMP_M_48_DB
#define GAIN_AMP_N_60_DB GAIN_AMP_M_60_DB
#define GAIN_AMP_N_72_DB GAIN_AMP_M_72_DB
// Gain steps
#define GAIN_AMP_S_0_1_DB 0.01157945426
#define GAIN_AMP_S_0_5_DB 0.05925372518
#define GAIN_AMP_S_1_DB 0.1220184543
// Float saturation limits
#define FLOAT_SAT_P_NAN 0.0f
#define FLOAT_SAT_N_NAN 0.0f
#define FLOAT_SAT_P_INF 1e+10f
#define FLOAT_SAT_N_INF -1e+10f
#define FLOAT_SAT_P_NAN_I 0
#define FLOAT_SAT_N_NAN_I 0
#define FLOAT_SAT_P_INF_I 0x501502f9
#define FLOAT_SAT_N_INF_I 0xd01502f9
#endif /* LSP_PLUG_IN_DSP_UNITS_CONST_H_ */
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