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https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2025-05-07 12:56:49 +00:00
Wefax warning fix modulation fix (#2543)
* changed order of modulations, changed case to avoid capture * added missing AMAudioFMApt mode to dump pmem * reorder demod, adding missing ones, fix warnings * removed uneeded 'previous_modulation', renamed WFAX to AMFM to match other places * removing uneeded 'previous_modulation' uneeded check in change_modulation * move capture at the end so AMAUdioFMApt is matching the other arrays for position 4 * added AMFM to Recon Level and Scanner * clang + more details in some comments --------- Co-authored-by: gullradriel <gullradriel@no-mail.com>
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@ -116,8 +116,8 @@ AMFMAptOptionsView::AMFMAptOptionsView(
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});
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freqman_set_bandwidth_option(AMFM_MODULATION, options_config); // adding the common message from freqman.cpp to the options_config
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receiver_model.set_amfm_configuration(5); // Fix index 5 manually, not from freqman: set to RX AM (USB+FM) mode to demod audio tone, and get Wefax_APT signal.
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options_config.set_by_value(receiver_model.amfm_configuration());
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receiver_model.set_amfm_configuration(5); // Fix index 5 manually, not from freqman: set to RX AM (USB+FM) mode to demod audio tone, and get Wefax_APT signal.
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}
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/* SPECOptionsView *******************************************************/
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@ -193,9 +193,10 @@ AnalogAudioView::AnalogAudioView(
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};
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auto modulation = receiver_model.modulation();
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// This app doesn't handle "Capture" mode.
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if (modulation > ReceiverModel::Mode::SpectrumAnalysis) // This two should be together in the last index position : SpectrumAnalysis = 4, and Capture = 5
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modulation = ReceiverModel::Mode::SpectrumAnalysis; // For sw simplicity , Wefax_mode, should NOT be added between.
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if (modulation == ReceiverModel::Mode::Capture)
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modulation = ReceiverModel::Mode::SpectrumAnalysis;
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options_modulation.set_by_value(toUType(modulation));
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options_modulation.on_change = [this](size_t, OptionsField::value_t v) {
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@ -285,10 +286,6 @@ void AnalogAudioView::on_baseband_bandwidth_changed(uint32_t bandwidth_hz) {
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}
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void AnalogAudioView::on_modulation_changed(ReceiverModel::Mode modulation) {
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// This app doesn't know what to do with "Capture" mode.
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if (modulation > ReceiverModel::Mode::SpectrumAnalysis)
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modulation = ReceiverModel::Mode::SpectrumAnalysis;
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baseband::spectrum_streaming_stop();
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update_modulation(modulation);
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on_show_options_modulation();
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@ -224,11 +224,13 @@ class AnalogAudioView : public View {
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OptionsField options_modulation{
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{0 * 8, 0 * 16},
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4,
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{{" AM ", toUType(ReceiverModel::Mode::AMAudio)},
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{"NFM ", toUType(ReceiverModel::Mode::NarrowbandFMAudio)},
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{"WFM ", toUType(ReceiverModel::Mode::WidebandFMAudio)},
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{"WFAX", toUType(ReceiverModel::Mode::AMAudioFMApt)}, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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{"SPEC", toUType(ReceiverModel::Mode::SpectrumAnalysis)}}};
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{
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{" AM ", toUType(ReceiverModel::Mode::AMAudio)},
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{"NFM ", toUType(ReceiverModel::Mode::NarrowbandFMAudio)},
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{"WFM ", toUType(ReceiverModel::Mode::WidebandFMAudio)},
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{"SPEC", toUType(ReceiverModel::Mode::SpectrumAnalysis)},
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{"AMFM", toUType(ReceiverModel::Mode::AMAudioFMApt)} // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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}};
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AudioVolumeField field_volume{
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{28 * 8, 0 * 16}};
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@ -45,7 +45,7 @@ using option_db_t = std::pair<std::string_view, int32_t>;
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using options_db_t = std::vector<option_db_t>;
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extern options_db_t freqman_modulations;
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extern options_db_t freqman_bandwidths[4];
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extern options_db_t freqman_bandwidths[5];
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extern options_db_t freqman_steps;
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extern options_db_t freqman_steps_short;
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@ -277,6 +277,15 @@ size_t LevelView::change_mode(freqman_index_t new_mod) {
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field_bw.set_by_value(0);
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field_bw.on_change = [this](size_t index, OptionsField::value_t n) { radio_bw = index ; receiver_model.set_wfm_configuration(n); };
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break;
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case AMFM_MODULATION:
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audio_sampling_rate = audio::Rate::Hz_12000;
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freqman_set_bandwidth_option(new_mod, field_bw);
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baseband::run_image(portapack::spi_flash::image_tag_am_audio);
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receiver_model.set_modulation(ReceiverModel::Mode::AMAudioFMApt);
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receiver_model.set_amfm_configuration(5); // Fix index 5 manually, not from freqman: set to RX AM (USB+FM) mode to demod audio tone, and get Wefax_APT signal.
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field_bw.set_by_value(0);
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field_bw.on_change = [this](size_t, OptionsField::value_t n) { (void)n; };
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break;
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case SPEC_MODULATION:
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audio_sampling_rate = audio::Rate::Hz_24000;
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freqman_set_bandwidth_option(new_mod, field_bw);
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@ -1227,6 +1227,16 @@ size_t ReconView::change_mode(freqman_index_t new_mod) {
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text_ctcss.set(" ");
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recording_sampling_rate = 48000;
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break;
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case AMFM_MODULATION:
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freqman_set_bandwidth_option(new_mod, field_bw);
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baseband::run_image(portapack::spi_flash::image_tag_am_audio);
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receiver_model.set_modulation(ReceiverModel::Mode::AMAudioFMApt);
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receiver_model.set_amfm_configuration(5); // Fix index 5 manually, not from freqman: set to RX AM (USB+FM) mode to demod audio tone, and get Wefax_APT signal.
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field_bw.on_change = [this](size_t, OptionsField::value_t n) { (void)n; };
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field_bw.set_by_value(0);
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text_ctcss.set(" ");
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recording_sampling_rate = 12000;
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break;
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case SPEC_MODULATION:
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freqman_set_bandwidth_option(new_mod, field_bw);
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baseband::run_image(portapack::spi_flash::image_tag_capture);
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@ -725,6 +725,14 @@ void ScannerView::change_mode(freqman_index_t new_mod) {
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field_bw.set_by_value(receiver_model.wfm_configuration());
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field_bw.on_change = [this](size_t, OptionsField::value_t n) { receiver_model.set_wfm_configuration(n); };
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break;
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case AMFM_MODULATION:
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freqman_set_bandwidth_option(new_mod, field_bw);
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baseband::run_image(portapack::spi_flash::image_tag_am_audio);
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receiver_model.set_modulation(ReceiverModel::Mode::AMAudioFMApt);
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receiver_model.set_amfm_configuration(5);
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field_bw.set_by_value(0);
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field_bw.on_change = [this](size_t, OptionsField::value_t n) { (void)n; };
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break;
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default:
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break;
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}
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@ -66,10 +66,10 @@ static void send_message(const Message* const message) {
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void AMConfig::apply() const {
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const AMConfigureMessage message{
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taps_6k0_decim_0, // common FIR filter taps pre-decim_0 to all 6 x AM mod types.(AM-9K, AM-6K, USB, LSB, CW, WFAX)
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taps_6k0_decim_0, // common FIR filter taps pre-decim_0 to all 6 x AM mod types.(AM-9K, AM-6K, USB, LSB, CW, AMFM-WFAX)
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taps_6k0_decim_1, // common FIR filter taps pre-decim_1 to all 6 x AM mod. types. (")
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decim_2, // var decim_2 FIR taps filter , variable values, depending selected AM mod(AM 9k / 6k and all rest AM modes)
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channel, // var channel FIR taps filter , variable values, depending selected AM mode, each one different (DSB-9K, DSB-6K, USB-3K, LSB-3K,CW,WFAX)
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channel, // var channel FIR taps filter , variable values, depending selected AM mode, each one different (DSB-9K, DSB-6K, USB-3K, LSB-3K,CW,AMFM-WFAX)
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modulation, // var parameter . enum class Modulation : int32_t {DSB = 0, SSB = 1, SSB_FM = 2}
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audio_12k_iir_filter_config}; // var parameter , 300 Hz hpf all except Wefax (1.500Hz lpf)
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send_message(&message);
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@ -41,8 +41,8 @@ enum freqman_entry_modulation : uint8_t {
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AM_MODULATION = 0,
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NFM_MODULATION,
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WFM_MODULATION,
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AMFM_MODULATION, // Added for Wefax.
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SPEC_MODULATION
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SPEC_MODULATION,
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AMFM_MODULATION // Added for Wefax.
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};
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// TODO: Can these be removed after Recon is migrated to FreqmanDB?
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@ -49,6 +49,7 @@ options_t freqman_modulations = {
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{"NFM", 1},
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{"WFM", 2},
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{"SPEC", 3},
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{"AMFM", 4},
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};
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options_t freqman_bandwidths[5] = {
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@ -72,10 +73,6 @@ options_t freqman_bandwidths[5] = {
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{"180k", 1},
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{"200k", 0},
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},
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{
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// AMFM for Wefax-
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{"USB+FM", 5}, // Fixed RX demodul AM config Index 5 : USB+FM for Audio Weather fax (Wfax) tones.
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},
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{
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// SPEC -- TODO: these should be indexes.
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{"12k5", 12500},
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@ -103,7 +100,12 @@ options_t freqman_bandwidths[5] = {
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{"4500k", 4500000},
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{"5000k", 5500000},
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{"5500k", 5500000}, // Max capture, needs /4 decimation, (22Mhz sampling ADC).
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}};
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},
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{
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// AMFM for Wefax-
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{"USB+FM", 5}, // Fixed RX demodul AM config Index 5 : USB+FM for Audio Weather fax (WFAX) tones.
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},
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};
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// TODO: these should be indexes.
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options_t freqman_steps = {
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@ -40,9 +40,9 @@ class ReceiverModel {
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AMAudio = 0,
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NarrowbandFMAudio = 1,
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WidebandFMAudio = 2,
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AMAudioFMApt = 3, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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SpectrumAnalysis = 4,
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Capture = 5
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SpectrumAnalysis = 3,
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AMAudioFMApt = 4, // Added to handle HF WeatherFax , SSB (USB demod) + Tone_Subcarrier FM demod
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Capture = 5,
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};
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struct settings_t {
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@ -72,7 +72,7 @@ void AudioOutput::on_block(const buffer_f32_t& audio) {
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if (do_processing) {
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const auto audio_present_now = squelch.execute(audio);
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hpf.execute_in_place(audio); // IIRBiquadFilter name is "hpf", but we will call with "hpf-coef" for all except WFAX with "lpf-coef".
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hpf.execute_in_place(audio); // IIRBiquadFilter name is "hpf", but we will call with "hpf-coef" for all except AMFM (WFAX) with "lpf-coef"
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deemph.execute_in_place(audio);
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audio_present_history = (audio_present_history << 1) | (audio_present_now ? 1 : 0);
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@ -79,7 +79,7 @@ static inline float angle_precise(const complex32_t t) {
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return atan2f(t.imag(), t.real());
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}
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buffer_f32_t SSB_FM::execute( // Added to handle WFAX (HF weather map )-
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buffer_f32_t SSB_FM::execute( // Added to handle AMFM (WFAX, HF weather map )
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const buffer_c16_t& src, // input arg , pointer Complex c16 i,q buffer.
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const buffer_f32_t& dst) { // input arg , pointer f32 buffer audio demodulated
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complex16_t* src_p = src.p; // removed const ; init src_p pointer with the mem address pointed by src.p.
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@ -48,7 +48,7 @@ class SSB {
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static constexpr float k = 1.0f / 32768.0f;
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};
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class SSB_FM { // Added to handle WFAX-
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class SSB_FM { // Added to handle AMFM for WFAX
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public:
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buffer_f32_t execute(
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const buffer_c16_t& src,
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@ -56,7 +56,7 @@ class SSB_FM { // Added to handle WFAX-
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private:
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static constexpr float k = 1.0f / 32768.0f;
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dsp::Real_to_Complex real_to_complex; // It is a member variable of SSB_FM.
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dsp::Real_to_Complex real_to_complex{}; // It is a member variable of SSB_FM.
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};
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class FM {
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@ -65,7 +65,9 @@ buffer_f32_t NarrowbandAMAudio::demodulate(const buffer_c16_t& channel) {
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return demod_ssb_fm.execute(channel, audio_buffer); // Calling a derivative of demod_ssb (USB) , but with different FIR taps + FM audio tones demod.
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break;
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// return demod am as a default
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default:
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return demod_am.execute(channel, audio_buffer);
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break;
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}
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}
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@ -34,7 +34,7 @@ constexpr iir_biquad_df2_config_t half_band_lpf_config[5] = {
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{1.0f, 0.08720754, 1.0f, 1.0f, 0.00220944f, 0.98743139f}};
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// scipy.signal.iirfilter(ftype="ellip", N = 10, rp = 0.5, rs = 60.0, Wn = 0.99, btype = 'lowpass', output="sos")
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// 6khz cutofff @fs:12Khz , used in WFAX demod.
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// 6khz cutofff @fs:12Khz , used in AMFM demod for WFAX
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constexpr iir_biquad_df2_config_t full_band_lpf_config[5] = {
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{0.88095275f, 1.76184993f, 0.88095275f, 1.0f, 1.89055677f, 0.89616378f},
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{1.0f, 1.99958798f, 1.0f, 1.0f, 1.9781807f, 0.98002549f},
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@ -43,7 +43,7 @@ constexpr iir_biquad_df2_config_t full_band_lpf_config[5] = {
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{1.0f, 1.99909558f, 1.0f, 1.0f, 1.9986187f, 0.99960319f}};
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// scipy.signal.iirfilter(ftype="ellip", N = 10, rp = 0.5 , rs = 60.0, Wn = 0.25, btype = 'lowpass', output="sos")
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// 1.5khz cutofff @fs:12Khz, used in WFAX demod.
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// 1.5khz cutofff @fs:12Khz, used in AMFM demod for WFAX
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constexpr iir_biquad_df2_config_t quarter_band_lpf_config[5] = {
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{0.00349312f, 0.00319397f, 0.00349312f, 1.0f, -1.53025211f, 0.6203438f},
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{1.0f, -0.83483341f, 1.0f, 1.0f, -1.47619047f, 0.77120659f},
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@ -1329,6 +1329,9 @@ bool debug_dump() {
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case ReceiverModel::Mode::Capture:
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pmem_dump_file.write_line("modulation: Mode::Capture");
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break;
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case ReceiverModel::Mode::AMAudioFMApt:
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pmem_dump_file.write_line("modulation: Mode::AMAudioFMApt");
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break;
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default:
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pmem_dump_file.write_line("modulation: !!unknown mode!!");
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break;
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