Superminaren
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MMDVM
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This commit is contained in:
Geoffrey Merck 2020-05-08 09:04:28 +02:00
parent 77e0deee76
commit feff1ee2c7
2 changed files with 1 additions and 8 deletions
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7
FM.cpp
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@ -40,8 +40,6 @@ m_hangTimer(),
m_filterStage1( 724, 1448, 724, 32768, -37895, 21352),//3rd order Cheby Filter 300 to 2700Hz, 0.2dB passband ripple, sampling rate 24kHz
m_filterStage2(32768, 0,-32768, 32768, -50339, 19052),
m_filterStage3(32768, -65536, 32768, 32768, -64075, 31460),
m_preemphasis(32768, 13967, 0, 32768, -18801, 0),//75µS 24kHz sampling rate
m_deemphasis (32768, -18801, 0, 32768, 13967, 0),//75µS 24kHz sampling rate
m_blanking(),
m_useCOS(true),
m_cosInvert(false),
@ -92,8 +90,7 @@ void CFM::samples(bool cos, q15_t* samples, uint8_t length)
}
// Only let audio through when relaying audio
if (m_state == FS_RELAYING || m_state == FS_KERCHUNK) {
// currentSample = m_deemphasis.filter(currentSample);
if (m_state == FS_RELAYING || m_state == FS_KERCHUNK) {
// m_downsampler.addSample(currentSample);
currentSample = m_blanking.process(currentSample);
currentSample *= m_rfAudioBoost;
@ -116,8 +113,6 @@ void CFM::samples(bool cos, q15_t* samples, uint8_t length)
currentSample = m_filterStage3.filter(m_filterStage2.filter(m_filterStage1.filter(currentSample)));
// currentSample = m_preemphasis.filter(currentSample);
currentSample += m_ctcssTX.getAudio();
samples[i] = currentSample;

2
FM.h
View File

@ -77,8 +77,6 @@ private:
CFMDirectFormI m_filterStage1;
CFMDirectFormI m_filterStage2;
CFMDirectFormI m_filterStage3;
CFMDirectFormI m_preemphasis;
CFMDirectFormI m_deemphasis;
CFMBlanking m_blanking;
bool m_useCOS;
bool m_cosInvert;