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Imrpoved sound quality in analog_audio_app, and added Nyquist protection option to BBW filter for praline. (#3054)

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stafur
2026-02-28 17:36:01 -05:00
committed by GitHub
parent b013e68b17
commit 3a54b112ec
7 changed files with 225 additions and 74 deletions
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firmware/application/apps/analog_audio_app.cpp
+4
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@@ -574,7 +574,11 @@ void AnalogAudioView::update_modulation(ReceiverModel::Mode modulation) {
const auto is_wideband_spectrum_mode = (modulation == ReceiverModel::Mode::SpectrumAnalysis);
receiver_model.set_modulation(modulation);
#ifdef PRALINE
receiver_model.set_sampling_rate(is_wideband_spectrum_mode ? spec_bw : 3023000);
#else
receiver_model.set_sampling_rate(is_wideband_spectrum_mode ? spec_bw : 3072000);
#endif
receiver_model.set_baseband_bandwidth(is_wideband_spectrum_mode ? spec_bw / 2 : 1750000);
receiver_model.set_hidden_offset(modulation == ReceiverModel::Mode::AMAudioFMApt ? -2200 : 0); // wefax needs to be shifted, see wefax rx app.