mirror of
https://github.com/chuot/rdio-scanner.git
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86 lines
2.5 KiB
Bash
Executable file
86 lines
2.5 KiB
Bash
Executable file
#!/bin/bash
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##
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## #############################################################################
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## Copyright (C) 2019-2021 Chrystian Huot <chrystian.huot@saubeo.solutions>
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##
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## This program is free software: you can redistribute it and/or modify
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## it under the terms of the GNU General Public License as published by
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## the Free Software Foundation, either version 3 of the License, or
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## (at your option) any later version.
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##
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## This program is distributed in the hope that it will be useful,
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## but WITHOUT ANY WARRANTY; without even the implied warranty of
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## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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## GNU General Public License for more details.
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##
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## You should have received a copy of the GNU General Public License
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## along with this program. If not, see <http://www.gnu.org/licenses/>
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## #############################################################################
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##
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##
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## Begin of configurable values
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##
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audio_dir=./audio_files/air
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device_id=00000001
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center_freq=119.4e6
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gain=38.6
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sampling_rate=2400000
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squelch=2e-4
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## List of frequencies covered by your RTL
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freqs=(118.9e6 119.1e6 119.9e6)
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## Filename tempaltes for each frequencies
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## See sox documentation for multiple files output
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filenames=(118900000-%6n 119100000-%6n 119900000-%6n)
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##
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## End of configurable values
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##
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for i in ${!freqs[@]}; do
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mkfifo /tmp/csdr_${device_id}_${freqs[i]}_iq.fifo
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mkfifo /tmp/csdr_${device_id}_${freqs[i]}_squelch.fifo
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done
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trap cleanup EXIT
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test -d ${audio_dir} || mkdir -p ${audio_dir} || exit 1
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trap "rm -f /tmp/csdr_${device_id}_*.fifo" EXIT
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for i in ${!freqs[@]}; do
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cat /tmp/csdr_${device_id}_${freqs[i]}_iq.fifo |
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csdr convert_u8_f |
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csdr shift_addition_cc $(csdr =\(${center_freq}-${freqs[i]}\)/${sampling_rate}) |
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csdr fir_decimate_cc 50 0.005 HAMMING |
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csdr squelch_and_smeter_cc --fifo /tmp/csdr_${device_id}_${freqs[i]}_squelch.fifo --outfifo /dev/null 6e-5 600 |
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csdr amdemod_cf |
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csdr agc_ff |
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csdr limit_ff |
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csdr convert_f_s16 |
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sox -c 1 -r 44100 -t s16 - "${audio_dir}/${filenames[i]}.wav" silence 1 0.50 0.1% 1 2.0 0.1% : newfile : restart &
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done
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for i in ${!freqs[@]}; do
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echo ${squelch} >/tmp/csdr_${device_id}_${freqs[i]}_squelch.fifo
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done
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server="rtl_sdr -d ${device_id} -f ${center_freq} -g ${gain} -s ${sampling_rate} -"
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for i in ${!freqs[@]}; do
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if [ $i == $((${#freqs[@]} - 1)) ]; then
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server+=" > /tmp/csdr_${device_id}_${freqs[i]}_iq.fifo"
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else
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server+=" | tee /tmp/csdr_${device_id}_${freqs[i]}_iq.fifo"
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fi
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done
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eval ${server}
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