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Adding_WFM_AM_mode_to_Audio_App (#2644)

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* Adding_WFM_AM_mode_to_Audio_App
* more precise values for cos and sin theta, fix sen_theta to sin_theta
* fix sen_theta to sin_theta
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Brumi-2021 2025-05-05 17:48:01 +02:00 • committed by GitHub
parent bd781ce37b
commit 4342f5c0ee
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GPG key ID: B5690EEEBB952194
18 changed files with 448 additions and 49 deletions
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18
firmware/application/baseband_api.cpp
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@ -93,9 +93,9 @@ void NBFMConfig::apply(const uint8_t squelch_level) const {
void WFMConfig::apply() const {
const WFMConfigureMessage message{
decim_0, // taps_200k_decim_0 , taps_180k_wfm_decim_0, taps_40k_wfm_decim_0
decim_1, // taps_200k_decim_1 or taps_180k_wfm_decim_1, taps_40k_wfm_decim_1
taps_64_lp_156_198,
decim_0, // Dynamic array 24 taps : taps_200k_decim_0 , taps_180k_wfm_decim_0, taps_40k_wfm_decim_0
decim_1, // Dynamic array 16 taps : taps_200k_decim_1 or taps_180k_wfm_decim_1, taps_40k_wfm_decim_1
taps_64_lp_156_198, // Fixed channel audio filter 15khz
75000,
audio_48k_hpf_30hz_config,
audio_48k_deemph_2122_6_config};
@ -103,6 +103,18 @@ void WFMConfig::apply() const {
audio::set_rate(audio::Rate::Hz_48000);
}
void WFMAMConfig::apply() const {
const WFMAMConfigureMessage message{
decim_0, // Fixed 24 taps array : taps_16k0_decim_0
decim_1, // Fixed 32 taps array : taps_84k_wfm_decim_1
taps_64_lp_1875_2166, // Fixed channel audio filter , 64 taps array , to filter DSB AM 2k4 carrier before demod. AM .
17000, // NOAA satellite tx , FM deviation = +-17Khz.
apt_audio_12k_notch_2k4_config,
apt_audio_12k_lpf_2000hz_config};
send_message(&message);
audio::set_rate(audio::Rate::Hz_12000);
}
void set_tone(const uint32_t index, const uint32_t delta, const uint32_t duration) {
shared_memory.bb_data.tones_data.tone_defs[index].delta = delta;
shared_memory.bb_data.tones_data.tone_defs[index].duration = duration;