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Merge pull request #150 from strijar/wide-waterfall

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Extended waterfall in AM/NFM Audio mode
This commit is contained in:
Erwin Ried 2020-08-20 20:54:45 +02:00 committed by GitHub
commit 629f911b91
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 8 additions and 4 deletions
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6
firmware/baseband/proc_am_audio.cpp
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@ -34,12 +34,14 @@ void NarrowbandAMAudio::execute(const buffer_c8_t& buffer) {
const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
channel_spectrum.feed(decim_1_out, channel_filter_pass_f, channel_filter_stop_f);
const auto decim_2_out = decim_2.execute(decim_1_out, dst_buffer);
const auto channel_out = channel_filter.execute(decim_2_out, dst_buffer);
// TODO: Feed channel_stats post-decimation data?
feed_channel_stats(channel_out);
channel_spectrum.feed(channel_out, channel_filter_pass_f, channel_filter_stop_f);
auto audio = demodulate(channel_out);
audio_compressor.execute_in_place(audio);
@ -93,7 +95,7 @@ void NarrowbandAMAudio::configure(const AMConfigureMessage& message) {
channel_filter.configure(message.channel_filter.taps, channel_filter_decimation_factor);
channel_filter_pass_f = message.channel_filter.pass_frequency_normalized * channel_filter_input_fs;
channel_filter_stop_f = message.channel_filter.stop_frequency_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(std::floor(channel_filter_output_fs / (channel_filter_pass_f + channel_filter_stop_f)));
channel_spectrum.set_decimation_factor(1.0f);
modulation_ssb = (message.modulation == AMConfigureMessage::Modulation::SSB);
audio_output.configure(message.audio_hpf_config);

6
firmware/baseband/proc_nfm_audio.cpp
View File

@ -38,10 +38,12 @@ void NarrowbandFMAudio::execute(const buffer_c8_t& buffer) {
const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
const auto decim_1_out = decim_1.execute(decim_0_out, dst_buffer);
channel_spectrum.feed(decim_1_out, channel_filter_pass_f, channel_filter_stop_f);
const auto channel_out = channel_filter.execute(decim_1_out, dst_buffer);
feed_channel_stats(channel_out);
channel_spectrum.feed(channel_out, channel_filter_pass_f, channel_filter_stop_f);
if (!pitch_rssi_enabled) {
// Normal mode, output demodulated audio
@ -145,7 +147,7 @@ void NarrowbandFMAudio::configure(const NBFMConfigureMessage& message) {
demod.configure(demod_input_fs, message.deviation);
channel_filter_pass_f = message.channel_filter.pass_frequency_normalized * channel_filter_input_fs;
channel_filter_stop_f = message.channel_filter.stop_frequency_normalized * channel_filter_input_fs;
channel_spectrum.set_decimation_factor(std::floor(channel_filter_output_fs / (channel_filter_pass_f + channel_filter_stop_f)));
channel_spectrum.set_decimation_factor(1.0f);
audio_output.configure(message.audio_hpf_config, message.audio_deemph_config, (float)message.squelch_level / 100.0);
hpf.configure(audio_24k_hpf_30hz_config);