mirror of
https://github.com/eried/portapack-mayhem.git
synced 2024-10-01 01:26:06 -04:00
50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/*
|
|
* Copyright (C) 2014 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 __PROC_NFM_AUDIO_H__
|
|
#define __PROC_NFM_AUDIO_H__
|
|
|
|
#include "baseband_processor.hpp"
|
|
|
|
#include "channel_decimator.hpp"
|
|
#include "dsp_decimate.hpp"
|
|
#include "dsp_demodulate.hpp"
|
|
#include "dsp_fir_taps.hpp"
|
|
#include "dsp_iir.hpp"
|
|
#include "dsp_iir_config.hpp"
|
|
#include "dsp_squelch.hpp"
|
|
|
|
class NarrowbandFMAudio : public BasebandProcessor {
|
|
public:
|
|
void execute(buffer_c8_t buffer) override;
|
|
|
|
private:
|
|
ChannelDecimator decimator { ChannelDecimator::DecimationFactor::By32 };
|
|
const fir_taps_real<64>& channel_filter_taps = taps_64_lp_042_078_tfilter;
|
|
dsp::decimate::FIRAndDecimateComplex channel_filter { channel_filter_taps.taps, 2 };
|
|
dsp::demodulate::FM demod { 48000, 7500 };
|
|
|
|
IIRBiquadFilter audio_hpf { audio_hpf_config };
|
|
FMSquelch squelch;
|
|
};
|
|
|
|
#endif/*__PROC_NFM_AUDIO_H__*/
|