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zooming_spectrum_AMFM_mode (#2565)

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Brumi-2021 2025-03-16 18:35:03 +01:00 committed by GitHub
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commit dc2f3260f3
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1 changed files with 7 additions and 2 deletions
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9
firmware/baseband/proc_am_audio.cpp
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@ -112,9 +112,14 @@ void NarrowbandAMAudio::configure(const AMConfigureMessage& message) {
channel_filter_low_f = message.channel_filter.low_frequency_normalized * channel_filter_input_fs;
channel_filter_high_f = message.channel_filter.high_frequency_normalized * channel_filter_input_fs;
channel_filter_transition = message.channel_filter.transition_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(1.0f);
// modulation_ssb = (message.modulation == AMConfigureMessage::Modulation::SSB); // originally we had just 2 AM types of demod. (DSB , SSB)
modulation_ssb = (int)message.modulation; // now sending by message , 3 types of AM demod : enum class Modulation : int32_t {DSB = 0, SSB = 1, SSB_FM = 2}
modulation_ssb = (int)message.modulation; // now sending by message , 3 types of AM demod : enum class Modulation : int32_t {DSB = 0, SSB = 1, SSB_FM = 2}
if (modulation_ssb == (int)(AMConfigureMessage::Modulation::SSB_FM)) {
channel_spectrum.set_decimation_factor(6.0f); // zooming for better tuning {SSB_FM = 2}
} else {
channel_spectrum.set_decimation_factor(1.0f); // no zooming .{DSB = 0, SSB = 1,}
}
audio_output.configure(message.audio_hpf_lpf_config); // hpf in all AM demod modes (AM-6K/9K, USB/LSB,DSB), except Wefax (lpf there).
configured = true;