mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-13 19:54:39 +00:00
114 lines
4.2 KiB
C++
114 lines
4.2 KiB
C++
/*
|
|
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __DSP_IIR_CONFIG_H__
|
|
#define __DSP_IIR_CONFIG_H__
|
|
|
|
#include "dsp_iir.hpp"
|
|
|
|
// scipy.signal.butter(2, 30 / 24000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_48k_hpf_30hz_config {
|
|
{ 0.99722705f, -1.99445410f, 0.99722705f },
|
|
{ 1.00000000f, -1.99444641f, 0.99446179f }
|
|
};
|
|
|
|
// scipy.signal.butter(2, 300 / 24000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_48k_hpf_300hz_config {
|
|
{ 0.97261390f, -1.94522780f, 0.97261390f },
|
|
{ 1.00000000f, -1.94447766f, 0.94597794f }
|
|
};
|
|
|
|
// scipy.signal.butter(2, 300 / 12000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_24k_hpf_300hz_config {
|
|
{ 0.94597686f, -1.89195371f, 0.94597686f },
|
|
{ 1.00000000f, -1.88903308f, 0.89487434f }
|
|
|
|
};
|
|
|
|
// scipy.signal.butter(2, 300 / 8000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_16k_hpf_300hz_config {
|
|
{ 0.92006616f, -1.84013232f, 0.92006616f },
|
|
{ 1.00000000f, -1.83373266f, 0.84653197f }
|
|
};
|
|
|
|
// scipy.signal.butter(2, 300 / 6000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_12k_hpf_300hz_config {
|
|
{ 0.89485861f, -1.78971721f, 0.89485861f },
|
|
{ 1.00000000f, -1.77863178f, 0.80080265f }
|
|
};
|
|
|
|
// scipy.signal.butter(2, 300 / 4000.0, 'highpass', analog=False)
|
|
constexpr iir_biquad_config_t audio_8k_hpf_300hz_config {
|
|
{ 0.84645925f, -1.69291851f, 0.84645925f },
|
|
{ 1.00000000f, -1.66920314f, 0.71663387f }
|
|
};
|
|
|
|
// scipy.signal.iirdesign(wp=8000 / 24000.0, ws= 4000 / 24000.0, gpass=1, gstop=18, ftype='ellip')
|
|
constexpr iir_biquad_config_t non_audio_hpf_config {
|
|
{ 0.51891061f, -0.95714180f, 0.51891061f },
|
|
{ 1.0f , -0.79878302f, 0.43960231f }
|
|
};
|
|
|
|
// scipy.signal.butter(1, 300 / 24000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_48k_deemph_300_6_config {
|
|
{ 0.01925927f, 0.01925927f, 0.00000000f },
|
|
{ 1.00000000f, -0.96148145f, 0.00000000f }
|
|
};
|
|
|
|
// scipy.signal.butter(1, 300 / 12000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_24k_deemph_300_6_config {
|
|
{ 0.03780475f, 0.03780475f, 0.00000000f },
|
|
{ 1.00000000f, -0.92439049f, 0.00000000f }
|
|
};
|
|
|
|
// scipy.signal.butter(1, 300 / 8000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_16k_deemph_300_6_config {
|
|
{ 0.05568894f, 0.05568894f, 0.00000000f },
|
|
{ 1.00000000f, -0.88862213f, 0.00000000f }
|
|
};
|
|
|
|
// scipy.signal.butter(1, 300 / 6000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_12k_deemph_300_6_config {
|
|
{ 0.07295966f, 0.07295966f, 0.00000000f },
|
|
{ 1.00000000f, -0.85408069f, 0.00000000f }
|
|
};
|
|
|
|
// scipy.signal.butter(1, 300 / 4000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_8k_deemph_300_6_config {
|
|
{ 0.10583178f, 0.10583178f, 0.00000000f },
|
|
{ 1.00000000f, -0.78833643f, 0.00000000f }
|
|
};
|
|
|
|
// 75us RC time constant, used in broadcast FM in Americas, South Korea
|
|
// scipy.signal.butter(1, 2122 / 24000.0, 'lowpass', analog=False)
|
|
// NOTE: Technically, order-1 filter, b[2] = a[2] = 0.
|
|
constexpr iir_biquad_config_t audio_48k_deemph_2122_6_config {
|
|
{ 0.12264116f, 0.12264116f, 0.00000000f },
|
|
{ 1.00000000f, -0.75471767f, 0.00000000f }
|
|
};
|
|
|
|
#endif/*__DSP_IIR_CONFIG_H__*/
|