Update project.pbxproj

When using a Runn/Stryd sensor for speed instead of treadmill's built-in
speed, there's a latency between the treadmill changing speed and the
sensor detecting it. This caused QZ to over-correct, leading to speed
oscillations ("yo-yo" effect).

This adds a new "Speed Correction Gain" setting (0.0 - 1.0) that controls
how aggressively QZ applies speed corrections. A value of 1.0 applies
the full correction immediately (previous behavior), while lower values
(e.g., 0.3) apply gradual corrections to allow smooth convergence without
oscillations.

https://claude.ai/code/session_01A3c7YGsoALtmFszVZ8rLxm

build-qdomyos-zwift-Qt_5_15_2_for_iOS-Debug/qdomyoszwift.xcodeproj/project.pbxproj

@@ -4593,7 +4593,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_ENTITLEMENTS = "../src/ios/qdomyos-zwift.entitlements";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				DEVELOPMENT_TEAM = 6335M7T29D;
 				ENABLE_BITCODE = NO;
@@ -4794,7 +4794,7 @@
 				ASSETCATALOG_COMPILER_APPICON_NAME = AppIcon;
 				CODE_SIGN_ENTITLEMENTS = "../src/ios/qdomyos-zwift.entitlements";
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				DERIVE_MACCATALYST_PRODUCT_BUNDLE_IDENTIFIER = YES;
 				DEVELOPMENT_TEAM = 6335M7T29D;
@@ -5031,7 +5031,7 @@
 				CODE_SIGN_ENTITLEMENTS = "watchkit Extension/WatchKit Extension.entitlements";
 				CODE_SIGN_IDENTITY = "Apple Development";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEVELOPMENT_TEAM = 6335M7T29D;
 				ENABLE_BITCODE = YES;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
@@ -5127,7 +5127,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = "watchkit Extension/WatchKit Extension.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_TEAM = 6335M7T29D;
 				ENABLE_BITCODE = YES;
@@ -5219,7 +5219,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = "watchkit Extension/WatchKit Extension.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEVELOPMENT_ASSET_PATHS = "\"watchkit Extension/Preview Content\"";
 				ENABLE_BITCODE = YES;
 				ENABLE_PREVIEWS = YES;
@@ -5335,7 +5335,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = "watchkit Extension/WatchKit Extension.entitlements";
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_ASSET_PATHS = "\"watchkit Extension/Preview Content\"";
 				ENABLE_BITCODE = YES;
@@ -5445,7 +5445,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = QZWidgetExtension.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEVELOPMENT_TEAM = 6335M7T29D;
 				ENABLE_STRICT_OBJC_MSGSEND = YES;
 				ENABLE_TESTABILITY = YES;
@@ -5536,7 +5536,7 @@
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				CODE_SIGN_ENTITLEMENTS = QZWidgetExtension.entitlements;
 				CODE_SIGN_STYLE = Automatic;
-				CURRENT_PROJECT_VERSION = 1279;
+				CURRENT_PROJECT_VERSION = 1280;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_TEAM = 6335M7T29D;
 				ENABLE_NS_ASSERTIONS = NO;

src/devices/treadmill.cpp

@@ -37,10 +37,12 @@ void treadmill::changeSpeed(double speed) {
     if(stryd_speed_instead_treadmill && Speed.value() > 0) {
         double delta = (Speed.value() - rawSpeed.value());
         double maxAllowedDelta = speed * 0.20; // 20% of the speed request
+        double correction_gain = settings.value(QZSettings::stryd_speed_correction_gain, QZSettings::default_stryd_speed_correction_gain).toDouble();
 
         if (std::abs(delta) <= maxAllowedDelta) {
-            qDebug() << "stryd_speed_instead_treadmill so override speed by " << delta;
-            speed -= delta;
+            double correctedDelta = delta * correction_gain;
+            qDebug() << "stryd_speed_instead_treadmill so override speed by " << correctedDelta << "(delta:" << delta << "gain:" << correction_gain << ")";
+            speed -= correctedDelta;
         } else {
             qDebug() << "Delta" << delta << "exceeds 20% threshold of" << maxAllowedDelta << "- not applying correction";
         }

src/qzsettings.cpp

@@ -789,6 +789,7 @@ const QString QZSettings::tile_erg_mode_enabled = QStringLiteral("tile_erg_mode_
 const QString QZSettings::tile_erg_mode_order = QStringLiteral("tile_erg_mode_order");
 const QString QZSettings::toorx_srx_3500 = QStringLiteral("toorx_srx_3500");
 const QString QZSettings::stryd_speed_instead_treadmill = QStringLiteral("stryd_speed_instead_treadmill");
+const QString QZSettings::stryd_speed_correction_gain = QStringLiteral("stryd_speed_correction_gain");
 const QString QZSettings::inclination_delay_seconds = QStringLiteral("inclination_delay_seconds");
 const QString QZSettings::ergDataPoints = QStringLiteral("ergDataPoints");
 const QString QZSettings::default_ergDataPoints = QStringLiteral("");
@@ -1052,7 +1053,7 @@ const QString QZSettings::trainprogram_auto_lap_on_segment = QStringLiteral("tra
 const QString QZSettings::kingsmith_r2_enable_hw_buttons = QStringLiteral("kingsmith_r2_enable_hw_buttons");
 
 
-const uint32_t allSettingsCount = 858;
+const uint32_t allSettingsCount = 859;
 
 QVariant allSettings[allSettingsCount][2] = {
     {QZSettings::cryptoKeySettingsProfiles, QZSettings::default_cryptoKeySettingsProfiles},
@@ -1711,6 +1712,7 @@ QVariant allSettings[allSettingsCount][2] = {
     {QZSettings::tile_erg_mode_order, QZSettings::default_tile_erg_mode_order},
     {QZSettings::toorx_srx_3500, QZSettings::default_toorx_srx_3500},
     {QZSettings::stryd_speed_instead_treadmill, QZSettings::default_stryd_speed_instead_treadmill},
+    {QZSettings::stryd_speed_correction_gain, QZSettings::default_stryd_speed_correction_gain},
     {QZSettings::inclination_delay_seconds, QZSettings::default_inclination_delay_seconds},
     {QZSettings::ergDataPoints, QZSettings::default_ergDataPoints},
     {QZSettings::proform_carbon_tl, QZSettings::default_proform_carbon_tl},

src/qzsettings.h

@@ -2184,6 +2184,8 @@ class QZSettings {
 
     static const QString stryd_speed_instead_treadmill;
     static constexpr bool default_stryd_speed_instead_treadmill = false;
+    static const QString stryd_speed_correction_gain;
+    static constexpr double default_stryd_speed_correction_gain = 1.0;
     static const QString inclination_delay_seconds;
     static constexpr float default_inclination_delay_seconds = 0.0;
 

src/settings.qml

@@ -1275,6 +1275,7 @@ import Qt.labs.platform 1.1
 			property bool domyos_treadmill_ts100: false
 			property bool thinkrider_controller: false
 			property bool weight_kg_unit: false
+            property real stryd_speed_correction_gain: 1.0            
         }
 
 
@@ -11888,6 +11889,60 @@ import Qt.labs.platform 1.1
                                 color: Material.color(Material.Lime)
                             }
 
+                            RowLayout {
+                                visible: settings.stryd_speed_instead_treadmill
+                                spacing: 10
+                                Label {
+                                    id: labelStrydSpeedCorrectionGain
+                                    text: qsTr("Speed Correction Gain:")
+                                    Layout.fillWidth: true
+                                }
+                                TextField {
+                                    id: strydSpeedCorrectionGainTextField
+                                    text: settings.stryd_speed_correction_gain.toFixed(2)
+                                    horizontalAlignment: Text.AlignRight
+                                    Layout.fillHeight: false
+                                    Layout.alignment: Qt.AlignRight | Qt.AlignVCenter
+                                    inputMethodHints: Qt.ImhDigitsOnly
+                                    onActiveFocusChanged: if(this.focus) this.selectAll()
+                                    onAccepted: {
+                                        var value = parseFloat(text)
+                                        if (value >= 0.0 && value <= 1.0) {
+                                            settings.stryd_speed_correction_gain = value
+                                        } else {
+                                            text = settings.stryd_speed_correction_gain.toFixed(2)
+                                        }
+                                    }
+                                }
+                                Button {
+                                    id: okStrydSpeedCorrectionGainButton
+                                    text: "OK"
+                                    Layout.alignment: Qt.AlignRight | Qt.AlignVCenter
+                                    onClicked: {
+                                        var value = parseFloat(strydSpeedCorrectionGainTextField.text)
+                                        if (value >= 0.0 && value <= 1.0) {
+                                            settings.stryd_speed_correction_gain = value
+                                        } else {
+                                            strydSpeedCorrectionGainTextField.text = settings.stryd_speed_correction_gain.toFixed(2)
+                                        }
+                                    }
+                                }
+                            }
+
+                            Label {
+                                visible: settings.stryd_speed_instead_treadmill
+                                text: qsTr("Controls how aggressively QZ corrects treadmill speed based on sensor readings. A value of 1.0 applies full correction immediately (may cause oscillations). Lower values (e.g., 0.3) apply gradual corrections to avoid speed fluctuations. Range: 0.0 - 1.0. Default: 1.0")
+                                font.bold: true
+                                font.italic: true
+                                font.pixelSize: Qt.application.font.pixelSize - 2
+                                textFormat: Text.PlainText
+                                wrapMode: Text.WordWrap
+                                verticalAlignment: Text.AlignVCenter
+                                Layout.alignment: Qt.AlignLeft | Qt.AlignTop
+                                Layout.fillWidth: true
+                                color: Material.color(Material.Lime)
+                            }
+
                             IndicatorOnlySwitch {
                                 text: qsTr("Use inclination from the power sensor")
                                 spacing: 0