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Add separate audio bandwidth setting.

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This commit is contained in:
srcejon 2023-10-23 14:22:33 +01:00
parent 42f847f1a2
commit 53372d0508
11 changed files with 185 additions and 61 deletions
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11
plugins/channelrx/demodam/amdemod.cpp
View File

@ -218,6 +218,7 @@ void AMDemod::applySettings(const AMDemodSettings& settings, bool force)
qDebug() << "AMDemod::applySettings:"
<< " m_inputFrequencyOffset: " << settings.m_inputFrequencyOffset
<< " m_rfBandwidth: " << settings.m_rfBandwidth
<< " m_afBandwidth: " << settings.m_afBandwidth
<< " m_volume: " << settings.m_volume
<< " m_squelch: " << settings.m_squelch
<< " m_audioMute: " << settings.m_audioMute
@ -238,6 +239,9 @@ void AMDemod::applySettings(const AMDemodSettings& settings, bool force)
if ((m_settings.m_rfBandwidth != settings.m_rfBandwidth) || force) {
reverseAPIKeys.append("rfBandwidth");
}
if ((m_settings.m_afBandwidth != settings.m_afBandwidth) || force) {
reverseAPIKeys.append("afBandwidth");
}
if ((m_settings.m_bandpassEnable != settings.m_bandpassEnable) || force) {
reverseAPIKeys.append("bandpassEnable");
}
@ -411,6 +415,9 @@ void AMDemod::webapiUpdateChannelSettings(
if (channelSettingsKeys.contains("rfBandwidth")) {
settings.m_rfBandwidth = response.getAmDemodSettings()->getRfBandwidth();
}
if (channelSettingsKeys.contains("afBandwidth")) {
settings.m_afBandwidth = response.getAmDemodSettings()->getAfBandwidth();
}
if (channelSettingsKeys.contains("rgbColor")) {
settings.m_rgbColor = response.getAmDemodSettings()->getRgbColor();
}
@ -483,6 +490,7 @@ void AMDemod::webapiFormatChannelSettings(SWGSDRangel::SWGChannelSettings& respo
response.getAmDemodSettings()->setAudioMute(settings.m_audioMute ? 1 : 0);
response.getAmDemodSettings()->setInputFrequencyOffset(settings.m_inputFrequencyOffset);
response.getAmDemodSettings()->setRfBandwidth(settings.m_rfBandwidth);
response.getAmDemodSettings()->setAfBandwidth(settings.m_afBandwidth);
response.getAmDemodSettings()->setRgbColor(settings.m_rgbColor);
response.getAmDemodSettings()->setSquelch(settings.m_squelch);
response.getAmDemodSettings()->setVolume(settings.m_volume);
@ -634,6 +642,9 @@ void AMDemod::webapiFormatChannelSettings(
if (channelSettingsKeys.contains("rfBandwidth") || force) {
swgAMDemodSettings->setRfBandwidth(settings.m_rfBandwidth);
}
if (channelSettingsKeys.contains("afBandwidth") || force) {
swgAMDemodSettings->setAfBandwidth(settings.m_afBandwidth);
}
if (channelSettingsKeys.contains("rgbColor") || force) {
swgAMDemodSettings->setRgbColor(settings.m_rgbColor);
}

13
plugins/channelrx/demodam/amdemodgui.cpp
View File

@ -163,6 +163,14 @@ void AMDemodGUI::on_rfBW_valueChanged(int value)
ui->rfBWText->setText(QString("%1 kHz").arg(value / 10.0, 0, 'f', 1));
m_channelMarker.setBandwidth(value * 100);
m_settings.m_rfBandwidth = value * 100;
ui->afBW->setMaximum(value);
applySettings();
}
void AMDemodGUI::on_afBW_valueChanged(int value)
{
ui->afBWText->setText(QString("%1 kHz").arg(value / 10.0, 0, 'f', 1));
m_settings.m_afBandwidth = value * 100;
applySettings();
}
@ -354,6 +362,10 @@ void AMDemodGUI::displaySettings()
ui->rfBW->setValue(displayValue);
ui->rfBWText->setText(QString("%1 kHz").arg(displayValue / 10.0, 0, 'f', 1));
displayValue = m_settings.m_afBandwidth / 100.0;
ui->afBW->setValue(displayValue);
ui->afBWText->setText(QString("%1 kHz").arg(displayValue / 10.0, 0, 'f', 1));
ui->volume->setValue(m_settings.m_volume * 10.0);
ui->volumeText->setText(QString("%1").arg(m_settings.m_volume, 0, 'f', 1));
@ -503,6 +515,7 @@ void AMDemodGUI::makeUIConnections()
QObject::connect(ui->ssb, &QToolButton::toggled, this, &AMDemodGUI::on_ssb_toggled);
QObject::connect(ui->bandpassEnable, &ButtonSwitch::toggled, this, &AMDemodGUI::on_bandpassEnable_toggled);
QObject::connect(ui->rfBW, &QSlider::valueChanged, this, &AMDemodGUI::on_rfBW_valueChanged);
QObject::connect(ui->afBW, &QSlider::valueChanged, this, &AMDemodGUI::on_afBW_valueChanged);
QObject::connect(ui->volume, &QSlider::valueChanged, this, &AMDemodGUI::on_volume_valueChanged);
QObject::connect(ui->squelch, &QSlider::valueChanged, this, &AMDemodGUI::on_squelch_valueChanged);
QObject::connect(ui->audioMute, &QToolButton::toggled, this, &AMDemodGUI::on_audioMute_toggled);

1
plugins/channelrx/demodam/amdemodgui.h
View File

@ -87,6 +87,7 @@ private slots:
void on_ssb_toggled(bool checked);
void on_bandpassEnable_toggled(bool checked);
void on_rfBW_valueChanged(int value);
void on_afBW_valueChanged(int value);
void on_volume_valueChanged(int value);
void on_squelch_valueChanged(int value);
void on_audioMute_toggled(bool checked);

100
plugins/channelrx/demodam/amdemodgui.ui
View File

@ -279,21 +279,6 @@
</property>
</widget>
</item>
<item>
<widget class="ButtonSwitch" name="bandpassEnable">
<property name="toolTip">
<string>Toggle boxcar bandpass filter with 300 Hz low cutoff</string>
</property>
<property name="icon">
<iconset resource="../../../sdrgui/resources/res.qrc">
<normaloff>:/filter_bandpass.png</normaloff>
<normalon>:/filter_bandpass.png</normalon>:/filter_bandpass.png</iconset>
</property>
<property name="checkable">
<bool>true</bool>
</property>
</widget>
</item>
<item>
<widget class="QSlider" name="rfBW">
<property name="toolTip">
@ -332,6 +317,73 @@
</property>
</widget>
</item>
<item>
<widget class="Line" name="line_2">
<property name="orientation">
<enum>Qt::Vertical</enum>
</property>
</widget>
</item>
<item>
<widget class="ButtonSwitch" name="bandpassEnable">
<property name="toolTip">
<string>Toggle boxcar bandpass filter with 300 Hz low cutoff</string>
</property>
<property name="icon">
<iconset resource="../../../sdrgui/resources/res.qrc">
<normaloff>:/filter_bandpass.png</normaloff>
<normalon>:/filter_bandpass.png</normalon>:/filter_bandpass.png</iconset>
</property>
<property name="checkable">
<bool>true</bool>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="afBWLabel">
<property name="text">
<string>AF BW</string>
</property>
</widget>
</item>
<item>
<widget class="QSlider" name="afBW">
<property name="toolTip">
<string>Audio bandwidth</string>
</property>
<property name="minimum">
<number>10</number>
</property>
<property name="maximum">
<number>400</number>
</property>
<property name="pageStep">
<number>1</number>
</property>
<property name="value">
<number>50</number>
</property>
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
<item>
<widget class="QLabel" name="afBWText">
<property name="minimumSize">
<size>
<width>50</width>
<height>0</height>
</size>
</property>
<property name="text">
<string>5.0 kHz</string>
</property>
<property name="alignment">
<set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
</property>
</widget>
</item>
</layout>
</item>
<item>
@ -434,10 +486,9 @@
</widget>
<customwidgets>
<customwidget>
<class>ValueDialZ</class>
<extends>QWidget</extends>
<header>gui/valuedialz.h</header>
<container>1</container>
<class>ButtonSwitch</class>
<extends>QToolButton</extends>
<header>gui/buttonswitch.h</header>
</customwidget>
<customwidget>
<class>RollupContents</class>
@ -445,17 +496,18 @@
<header>gui/rollupcontents.h</header>
<container>1</container>
</customwidget>
<customwidget>
<class>ValueDialZ</class>
<extends>QWidget</extends>
<header>gui/valuedialz.h</header>
<container>1</container>
</customwidget>
<customwidget>
<class>LevelMeterSignalDB</class>
<extends>QWidget</extends>
<header>gui/levelmeter.h</header>
<container>1</container>
</customwidget>
<customwidget>
<class>ButtonSwitch</class>
<extends>QToolButton</extends>
<header>gui/buttonswitch.h</header>
</customwidget>
</customwidgets>
<resources>
<include location="../../../sdrgui/resources/res.qrc"/>

5
plugins/channelrx/demodam/amdemodsettings.cpp
View File

@ -38,6 +38,7 @@ void AMDemodSettings::resetToDefaults()
m_volume = 2.0;
m_audioMute = false;
m_bandpassEnable = false;
m_afBandwidth = 5000;
m_rgbColor = QColor(255, 255, 0).rgb();
m_title = "AM Demodulator";
m_audioDeviceName = AudioDeviceManager::m_defaultDeviceName;
@ -69,6 +70,7 @@ QByteArray AMDemodSettings::serialize() const
s.writeU32(7, m_rgbColor);
s.writeBool(8, m_bandpassEnable);
s.writeString(9, m_title);
s.writeReal(10, m_afBandwidth);
s.writeString(11, m_audioDeviceName);
s.writeBool(12, m_pll);
s.writeS32(13, (int) m_syncAMOperation);
@ -85,6 +87,7 @@ QByteArray AMDemodSettings::serialize() const
s.writeS32(20, m_workspaceIndex);
s.writeBlob(21, m_geometryBytes);
s.writeBool(22, m_hidden);
s.writeBool(23, m_audioMute);
return s.final();
}
@ -124,6 +127,7 @@ bool AMDemodSettings::deserialize(const QByteArray& data)
d.readU32(7, &m_rgbColor);
d.readBool(8, &m_bandpassEnable, false);
d.readString(9, &m_title, "AM Demodulator");
d.readReal(10, &m_afBandwidth, 5000);
d.readString(11, &m_audioDeviceName, AudioDeviceManager::m_defaultDeviceName);
d.readBool(12, &m_pll, false);
d.readS32(13, &tmp, 0);
@ -152,6 +156,7 @@ bool AMDemodSettings::deserialize(const QByteArray& data)
d.readS32(20, &m_workspaceIndex, 0);
d.readBlob(21, &m_geometryBytes);
d.readBool(22, &m_hidden, false);
d.readBool(23, &m_audioMute);
return true;
}

1
plugins/channelrx/demodam/amdemodsettings.h
View File

@ -37,6 +37,7 @@ struct AMDemodSettings
Real m_volume;
bool m_audioMute;
bool m_bandpassEnable;
Real m_afBandwidth; //!< High frequency for bandpass
quint32 m_rgbColor;
QString m_title;
Serializable *m_channelMarker;

12
plugins/channelrx/demodam/amdemodsink.cpp
View File

@ -273,19 +273,21 @@ void AMDemodSink::applySettings(const AMDemodSettings& settings, bool force)
<< " m_squelch: " << settings.m_squelch
<< " m_audioMute: " << settings.m_audioMute
<< " m_bandpassEnable: " << settings.m_bandpassEnable
<< " m_afBandwidth: " << settings.m_afBandwidth
<< " m_audioDeviceName: " << settings.m_audioDeviceName
<< " m_pll: " << settings.m_pll
<< " m_syncAMOperation: " << (int) settings.m_syncAMOperation
<< " force: " << force;
if((m_settings.m_rfBandwidth != settings.m_rfBandwidth) ||
(m_settings.m_bandpassEnable != settings.m_bandpassEnable) || force)
(m_settings.m_bandpassEnable != settings.m_bandpassEnable) ||
(m_settings.m_afBandwidth != settings.m_afBandwidth) || force)
{
m_interpolator.create(16, m_channelSampleRate, settings.m_rfBandwidth / 2.2f);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) m_channelSampleRate / (Real) m_audioSampleRate;
m_bandpass.create(301, m_audioSampleRate, 300.0, settings.m_rfBandwidth / 2.0f);
m_lowpass.create(301, m_audioSampleRate, settings.m_rfBandwidth / 2.0f);
m_bandpass.create(301, m_audioSampleRate, 300.0, settings.m_afBandwidth / 2.0f);
m_lowpass.create(301, m_audioSampleRate, settings.m_afBandwidth / 2.0f);
DSBFilter->create_dsb_filter((2.0f * settings.m_rfBandwidth) / (float) m_audioSampleRate);
}
@ -326,8 +328,8 @@ void AMDemodSink::applyAudioSampleRate(int sampleRate)
m_interpolator.create(16, m_channelSampleRate, m_settings.m_rfBandwidth / 2.2f);
m_interpolatorDistanceRemain = 0;
m_interpolatorDistance = (Real) m_channelSampleRate / (Real) sampleRate;
m_bandpass.create(301, sampleRate, 300.0, m_settings.m_rfBandwidth / 2.0f);
m_lowpass.create(301, sampleRate, m_settings.m_rfBandwidth / 2.0f);
m_bandpass.create(301, sampleRate, 300.0, m_settings.m_afBandwidth / 2.0f);
m_lowpass.create(301, sampleRate, m_settings.m_afBandwidth / 2.0f);
m_audioFifo.setSize(sampleRate);
m_squelchDelayLine.resize(sampleRate/5);
DSBFilter->create_dsb_filter((2.0f * m_settings.m_rfBandwidth) / (float) sampleRate);

7
plugins/channelrx/demodam/readme.md
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@ -55,3 +55,10 @@ This is the volume of the audio signal from 0.0 (mute) to 10.0 (maximum). It can
<h3>10: Squelch threshold</h3>
This is the squelch threshold in dB. The average total power received in the signal bandwidth before demodulation is compared to this value and the squelch input is open above this value. It can be varied continuously in 0.1 dB steps from 0.0 to -100.0 dB using the dial button.
<h3>11: Audio bandwidth</h3>
Specifies cutoff frequency of low pass (or band pass if boxcar (7) enabled) filter applied to audio.
In many use cases, this can be the same as the RF bandwidth (8). However, where offset carrier is used
(a.k.a CLIMAX as used by some ATC ground stations), this can reduce noise, when the RF bandwidth is set around ~20kHz
to cope with the offset, but the audio is only ~5-6kHz wide.

4
swagger/sdrangel/api/swagger/include/AMDemod.yaml
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@ -9,6 +9,10 @@ AMDemodSettings:
description: channel RF bandwidth in Hz (floors to next 100 Hz)
type: number
format: float
afBandwidth:
description: AF bandwidth in Hz
type: number
format: float
squelch:
description: power squelch threshold in decibels
type: number

24
swagger/sdrangel/code/qt5/client/SWGAMDemodSettings.cpp
View File

@ -32,6 +32,8 @@ SWGAMDemodSettings::SWGAMDemodSettings() {
m_input_frequency_offset_isSet = false;
rf_bandwidth = 0.0f;
m_rf_bandwidth_isSet = false;
af_bandwidth = 0.0f;
m_af_bandwidth_isSet = false;
squelch = 0.0f;
m_squelch_isSet = false;
volume = 0.0f;
@ -78,6 +80,8 @@ SWGAMDemodSettings::init() {
m_input_frequency_offset_isSet = false;
rf_bandwidth = 0.0f;
m_rf_bandwidth_isSet = false;
af_bandwidth = 0.0f;
m_af_bandwidth_isSet = false;
squelch = 0.0f;
m_squelch_isSet = false;
volume = 0.0f;
@ -123,6 +127,7 @@ SWGAMDemodSettings::cleanup() {
if(title != nullptr) {
delete title;
}
@ -162,6 +167,8 @@ SWGAMDemodSettings::fromJsonObject(QJsonObject &pJson) {
::SWGSDRangel::setValue(&rf_bandwidth, pJson["rfBandwidth"], "float", "");
::SWGSDRangel::setValue(&af_bandwidth, pJson["afBandwidth"], "float", "");
::SWGSDRangel::setValue(&squelch, pJson["squelch"], "float", "");
::SWGSDRangel::setValue(&volume, pJson["volume"], "float", "");
@ -218,6 +225,9 @@ SWGAMDemodSettings::asJsonObject() {
if(m_rf_bandwidth_isSet){
obj->insert("rfBandwidth", QJsonValue(rf_bandwidth));
}
if(m_af_bandwidth_isSet){
obj->insert("afBandwidth", QJsonValue(af_bandwidth));
}
if(m_squelch_isSet){
obj->insert("squelch", QJsonValue(squelch));
}
@ -293,6 +303,16 @@ SWGAMDemodSettings::setRfBandwidth(float rf_bandwidth) {
this->m_rf_bandwidth_isSet = true;
}
float
SWGAMDemodSettings::getAfBandwidth() {
return af_bandwidth;
}
void
SWGAMDemodSettings::setAfBandwidth(float af_bandwidth) {
this->af_bandwidth = af_bandwidth;
this->m_af_bandwidth_isSet = true;
}
float
SWGAMDemodSettings::getSquelch() {
return squelch;
@ -474,6 +494,9 @@ SWGAMDemodSettings::isSet(){
if(m_rf_bandwidth_isSet){
isObjectUpdated = true; break;
}
if(m_af_bandwidth_isSet){
isObjectUpdated = true; break;
}
if(m_squelch_isSet){
isObjectUpdated = true; break;
}
@ -529,4 +552,3 @@ SWGAMDemodSettings::isSet(){
return isObjectUpdated;
}
}

6
swagger/sdrangel/code/qt5/client/SWGAMDemodSettings.h
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@ -50,6 +50,9 @@ public:
float getRfBandwidth();
void setRfBandwidth(float rf_bandwidth);
float getAfBandwidth();
void setAfBandwidth(float af_bandwidth);
float getSquelch();
void setSquelch(float squelch);
@ -111,6 +114,9 @@ private:
float rf_bandwidth;
bool m_rf_bandwidth_isSet;
float af_bandwidth;
bool m_af_bandwidth_isSet;
float squelch;
bool m_squelch_isSet;