mayhem-firmware/firmware/baseband/dsp_iir_config.hpp

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/*
* 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"
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// scipy.signal.butter(2, 300 / 24000.0, 'highpass', analog=False)
constexpr iir_biquad_config_t audio_hpf_config {
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{ 0.97261390f, -1.94522780f, 0.97261390f, },
{ 1.00000000f, -1.94447766f, 0.94597794f, }
};
// 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 }
};
#endif/*__DSP_IIR_CONFIG_H__*/