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SSB demod: binaural option
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f4exb
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@ -19,7 +19,7 @@ These plugins come from the parent code base and have been maintained so that th
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- Channels:
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- lora
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- tcpsrc
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- tcpsrc (although it has evolved please use the udpsrc plugin instead)
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<h2>Unsupported plugins</h2>
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@ -180,6 +180,9 @@ For Debian Jessie or Stretch:
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- Scope: trigger countdown
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- Scope: multiple trigger chaining
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- Scope: new mode with linear IQ (two traces) on the primary display and polar IQ on the secondary display
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- New USB source plugin to connect to an external demodulator (ex: GNU radio) via USB ports
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- Binaural option for SSB demod
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- DSB option for SSB
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<h2>Major redesign</h2>
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@ -29,7 +29,8 @@ MESSAGE_CLASS_DEFINITION(SSBDemod::MsgConfigureSSBDemod, Message)
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SSBDemod::SSBDemod(SampleSink* sampleSink) :
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m_sampleSink(sampleSink),
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m_audioFifo(4, 24000),
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m_settingsMutex(QMutex::Recursive)
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m_settingsMutex(QMutex::Recursive),
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m_audioBinaual(false)
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{
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setObjectName("SSBDemod");
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@ -66,9 +67,14 @@ SSBDemod::~SSBDemod()
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DSPEngine::instance()->removeAudioSink(&m_audioFifo);
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}
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void SSBDemod::configure(MessageQueue* messageQueue, Real Bandwidth, Real LowCutoff, Real volume, int spanLog2)
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void SSBDemod::configure(MessageQueue* messageQueue,
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Real Bandwidth,
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Real LowCutoff,
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Real volume,
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int spanLog2,
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bool audioBinaural)
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{
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Message* cmd = MsgConfigureSSBDemod::create(Bandwidth, LowCutoff, volume, spanLog2);
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Message* cmd = MsgConfigureSSBDemod::create(Bandwidth, LowCutoff, volume, spanLog2, audioBinaural);
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messageQueue->push(cmd);
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}
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@ -102,9 +108,6 @@ void SSBDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
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for (int i = 0; i < n_out; i++)
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{
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//Real demod = (sideband[i].real() + sideband[i].imag()) * 0.7 * 32768.0;
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Real demod = (sideband[i].real() + sideband[i].imag()) * 0.7;
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// Downsample by 2^(m_scaleLog2 - 1) for SSB band spectrum display
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// smart decimation with bit gain using float arithmetic (23 bits significand)
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@ -122,9 +125,19 @@ void SSBDemod::feed(const SampleVector::const_iterator& begin, const SampleVecto
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sum.imag() = 0.0;
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}
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qint16 sample = (qint16)(demod * m_volume * 100);
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m_audioBuffer[m_audioBufferFill].l = sample;
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m_audioBuffer[m_audioBufferFill].r = sample;
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if (m_audioBinaual)
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{
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m_audioBuffer[m_audioBufferFill].r = (qint16)(sideband[i].real() * m_volume * 100);
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m_audioBuffer[m_audioBufferFill].l = (qint16)(sideband[i].imag() * m_volume * 100);
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}
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else
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{
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Real demod = (sideband[i].real() + sideband[i].imag()) * 0.7;
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qint16 sample = (qint16)(demod * m_volume * 100);
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m_audioBuffer[m_audioBufferFill].l = sample;
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m_audioBuffer[m_audioBufferFill].r = sample;
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}
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++m_audioBufferFill;
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if (m_audioBufferFill >= m_audioBuffer.size())
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@ -220,13 +233,15 @@ bool SSBDemod::handleMessage(const Message& cmd)
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m_volume *= m_volume * 0.1;
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m_spanLog2 = cfg.getSpanLog2();
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m_audioBinaual = cfg.getAudioBinaural();
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m_settingsMutex.unlock();
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qDebug() << " - MsgConfigureSSBDemod: m_Bandwidth: " << m_Bandwidth
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qDebug() << "SBDemod::handleMessage: MsgConfigureSSBDemod: m_Bandwidth: " << m_Bandwidth
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<< " m_LowCutoff: " << m_LowCutoff
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<< " m_volume: " << m_volume
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<< " m_spanLog2: " << m_spanLog2;
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<< " m_spanLog2: " << m_spanLog2
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<< " m_audioBinaual: " << m_audioBinaual;
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return true;
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}
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@ -34,7 +34,12 @@ public:
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SSBDemod(SampleSink* sampleSink);
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virtual ~SSBDemod();
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void configure(MessageQueue* messageQueue, Real Bandwidth, Real LowCutoff, Real volume, int spanLog2);
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void configure(MessageQueue* messageQueue,
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Real Bandwidth,
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Real LowCutoff,
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Real volume,
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int spanLog2,
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bool audioBinaural);
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virtual void feed(const SampleVector::const_iterator& begin, const SampleVector::const_iterator& end, bool positiveOnly);
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virtual void start();
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@ -52,10 +57,15 @@ private:
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Real getLoCutoff() const { return m_LowCutoff; }
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Real getVolume() const { return m_volume; }
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int getSpanLog2() const { return m_spanLog2; }
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bool getAudioBinaural() const { return m_audioBinaural; }
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static MsgConfigureSSBDemod* create(Real Bandwidth, Real LowCutoff, Real volume, int spanLog2)
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static MsgConfigureSSBDemod* create(Real Bandwidth,
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Real LowCutoff,
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Real volume,
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int spanLog2,
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bool audioBinaural)
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{
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return new MsgConfigureSSBDemod(Bandwidth, LowCutoff, volume, spanLog2);
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return new MsgConfigureSSBDemod(Bandwidth, LowCutoff, volume, spanLog2, audioBinaural);
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}
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private:
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@ -63,13 +73,19 @@ private:
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Real m_LowCutoff;
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Real m_volume;
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int m_spanLog2;
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bool m_audioBinaural;
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MsgConfigureSSBDemod(Real Bandwidth, Real LowCutoff, Real volume, int spanLog2) :
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MsgConfigureSSBDemod(Real Bandwidth,
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Real LowCutoff,
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Real volume,
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int spanLog2,
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bool audioBinaural) :
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Message(),
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m_Bandwidth(Bandwidth),
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m_LowCutoff(LowCutoff),
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m_volume(volume),
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m_spanLog2(spanLog2)
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m_spanLog2(spanLog2),
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m_audioBinaural(audioBinaural)
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{ }
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};
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@ -77,6 +93,7 @@ private:
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qint16 l;
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qint16 r;
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};
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typedef std::vector<AudioSample> AudioVector;
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Real m_Bandwidth;
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@ -86,6 +103,7 @@ private:
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int m_undersampleCount;
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int m_sampleRate;
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int m_frequency;
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bool m_audioBinaual;
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bool m_usb;
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Real m_magsq;
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@ -71,6 +71,7 @@ QByteArray SSBDemodGUI::serialize() const
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s.writeU32(5, m_channelMarker.getColor().rgb());
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s.writeS32(6, ui->lowCut->value());
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s.writeS32(7, ui->spanLog2->value());
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s.writeBool(8, m_audioBinaural);
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return s.final();
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}
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@ -108,6 +109,8 @@ bool SSBDemodGUI::deserialize(const QByteArray& data)
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d.readS32(7, &tmp, 20);
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ui->spanLog2->setValue(tmp);
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setNewRate(tmp);
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d.readBool(8, &m_audioBinaural);
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ui->audioBinaural->setChecked(m_audioBinaural);
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blockApplySettings(false);
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m_channelMarker.blockSignals(false);
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@ -143,6 +146,12 @@ void SSBDemodGUI::on_deltaMinus_toggled(bool minus)
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}
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}
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void SSBDemodGUI::on_audioBinaural_toggled(bool binaural)
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{
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m_audioBinaural = binaural;
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applySettings();
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}
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void SSBDemodGUI::on_deltaFrequency_changed(quint64 value)
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{
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if (ui->deltaMinus->isChecked())
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@ -257,6 +266,7 @@ SSBDemodGUI::SSBDemodGUI(PluginAPI* pluginAPI, QWidget* parent) :
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m_doApplySettings(true),
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m_rate(6000),
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m_spanLog2(3),
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m_audioBinaural(false),
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m_channelPowerDbAvg(20,0)
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{
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ui->setupUi(this);
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@ -374,7 +384,8 @@ void SSBDemodGUI::applySettings()
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ui->BW->value() * 100.0,
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ui->lowCut->value() * 100.0,
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ui->volume->value() / 10.0,
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m_spanLog2);
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m_spanLog2,
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m_audioBinaural);
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}
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}
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@ -40,6 +40,7 @@ private slots:
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void viewChanged();
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void on_deltaFrequency_changed(quint64 value);
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void on_deltaMinus_toggled(bool minus);
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void on_audioBinaural_toggled(bool binaural);
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void on_BW_valueChanged(int value);
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void on_lowCut_valueChanged(int value);
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void on_volume_valueChanged(int value);
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@ -56,6 +57,7 @@ private:
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bool m_doApplySettings;
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int m_rate;
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int m_spanLog2;
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bool m_audioBinaural;
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MovingAverage<Real> m_channelPowerDbAvg;
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ThreadedSampleSink* m_threadedChannelizer;
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@ -7,7 +7,7 @@
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<x>0</x>
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<y>0</y>
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<width>302</width>
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<height>544</height>
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<height>483</height>
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</rect>
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</property>
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<property name="minimumSize">
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@ -25,7 +25,7 @@
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<x>5</x>
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<y>35</y>
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<width>281</width>
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<height>349</height>
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<height>151</height>
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</rect>
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</property>
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<property name="windowTitle">
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@ -142,6 +142,24 @@
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</property>
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</widget>
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</item>
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<item>
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<widget class="QToolButton" name="audioBinaural">
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<property name="toolTip">
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<string>Binaural audio</string>
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</property>
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<property name="text">
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<string>...</string>
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</property>
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<property name="icon">
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<iconset resource="../../../sdrbase/resources/res.qrc">
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<normaloff>:/mono.png</normaloff>
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<normalon>:/stereo.png</normalon>:/mono.png</iconset>
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</property>
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<property name="checkable">
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<bool>true</bool>
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</property>
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</widget>
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</item>
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</layout>
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</item>
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</layout>
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@ -332,8 +350,8 @@
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<widget class="QWidget" name="spectrumContainer" native="true">
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<property name="geometry">
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<rect>
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<x>30</x>
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<y>390</y>
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<x>40</x>
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<y>190</y>
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<width>218</width>
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<height>284</height>
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</rect>
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@ -380,12 +398,6 @@
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</widget>
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</widget>
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<customwidgets>
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<customwidget>
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<class>RollupWidget</class>
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<extends>QWidget</extends>
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<header>gui/rollupwidget.h</header>
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<container>1</container>
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</customwidget>
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<customwidget>
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<class>ValueDial</class>
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<extends>QWidget</extends>
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@ -404,6 +416,12 @@
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<header>gui/glspectrumgui.h</header>
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<container>1</container>
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</customwidget>
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<customwidget>
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<class>RollupWidget</class>
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<extends>QWidget</extends>
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<header>gui/rollupwidget.h</header>
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<container>1</container>
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</customwidget>
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</customwidgets>
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<resources>
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<include location="../../../sdrbase/resources/res.qrc"/>
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