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NFM: review frequency deviation and NFM demod volume control

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f4exb
2020-11-05 23:21:04 +01:00
parent fecbd54a35
commit f1cf57bacd
9 changed files with 44 additions and 31 deletions
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plugins/channeltx/modnfm/nfmmodsource.cpp
+2 -3
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@@ -134,11 +134,10 @@ void NFMModSource::modulateSample()
calculateLevel(t);
m_audioBufferFill++;
// 0.625 = 1/1.25 (heuristic)
if (m_settings.m_ctcssOn) {
m_modPhasor += (m_settings.m_fmDeviation / (float) m_audioSampleRate) * (0.85f * m_bandpass.filter(t) + 0.15f * 0.625f * m_ctcssNco.next()) * (M_PI / 0.625f);
m_modPhasor += (m_settings.m_fmDeviation / (float) m_audioSampleRate) * (0.85f * m_bandpass.filter(t) + 0.15f * 0.625f * m_ctcssNco.next()) * 1.33f;
} else {
m_modPhasor += (m_settings.m_fmDeviation / (float) m_audioSampleRate) * m_bandpass.filter(t) * (M_PI / 0.625f);
m_modPhasor += (m_settings.m_fmDeviation / (float) m_audioSampleRate) * m_bandpass.filter(t) * 1.33f;
}
// limit phasor range to ]-pi,pi]