Merge branch 'skibidi-dop-doppler' into 'master'

Doppler, take two

See merge request OpenMW/openmw!4660

apps/launcher/settingspage.cpp

@@ -291,6 +291,7 @@ bool Launcher::SettingsPage::loadSettings()
             }
         }
         loadSettingBool(Settings::sound().mCameraListener, *cameraListenerCheckBox);
+        dopplerSpinBox->setValue(Settings::sound().mDopplerFactor);
     }
 
     // Interface Changes
@@ -482,6 +483,8 @@ void Launcher::SettingsPage::saveSettings()
 
         const bool cCameraListener = cameraListenerCheckBox->checkState() != Qt::Unchecked;
         Settings::sound().mCameraListener.set(cCameraListener);
+
+        Settings::sound().mDopplerFactor.set(dopplerSpinBox->value());
     }
 
     // Interface Changes

apps/launcher/ui/settingspage.ui

@@ -1224,6 +1224,51 @@
          </property>
         </widget>
        </item>
+       <item>
+        <layout class="QHBoxLayout">
+         <item>
+          <widget class="QLabel" name="dopplerLabel">
+           <property name="toolTip">
+            <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+           </property>
+           <property name="text">
+            <string>Doppler Factor</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QDoubleSpinBox" name="dopplerSpinBox">
+           <property name="sizePolicy">
+            <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+             <horstretch>0</horstretch>
+             <verstretch>0</verstretch>
+            </sizepolicy>
+           </property>
+           <property name="minimumSize">
+            <size>
+             <width>283</width>
+             <height>0</height>
+            </size>
+           </property>
+           <property name="decimals">
+            <number>2</number>
+           </property>
+           <property name="minimum">
+            <double>0.000000000000000</double>
+           </property>
+           <property name="maximum">
+            <double>1.000000000000000</double>
+           </property>
+           <property name="singleStep">
+            <double>0.010000000000000</double>
+           </property>
+           <property name="value">
+            <double>0.250000000000000</double>
+           </property>
+          </widget>
+         </item>
+        </layout>
+       </item>
        <item>
         <spacer>
          <property name="orientation">

apps/openmw/mwbase/soundmanager.hpp

@@ -234,6 +234,8 @@ namespace MWBase
             const osg::Vec3f& pos, const osg::Vec3f& dir, const osg::Vec3f& up, bool underwater)
             = 0;
 
+        virtual void setListenerVel(const osg::Vec3f& vel) = 0;
+
         virtual void updatePtr(const MWWorld::ConstPtr& old, const MWWorld::ConstPtr& updated) = 0;
 
         void setSimulationTimeScale(float scale) { mSimulationTimeScale = scale; }

apps/openmw/mwbase/world.hpp

@@ -496,6 +496,8 @@ namespace MWBase
         virtual float getSunVisibility() const = 0;
         virtual float getSunPercentage() const = 0;
 
+        virtual float getPhysicsFrameRateDt() const = 0;
+
         virtual bool findInteriorPositionInWorldSpace(const MWWorld::CellStore* cell, osg::Vec3f& result) = 0;
 
         /// Teleports \a ptr to the closest reference of \a id (e.g. DivineMarker, PrisonMarker, TempleMarker)

apps/openmw/mwphysics/physicssystem.cpp

@@ -93,9 +93,10 @@ namespace
 namespace MWPhysics
 {
     PhysicsSystem::PhysicsSystem(Resource::ResourceSystem* resourceSystem, osg::ref_ptr<osg::Group> parentNode)
-        : mShapeManager(
+        : mPhysicsDt(1.f / 60.f)
-            std::make_unique<Resource::BulletShapeManager>(resourceSystem->getVFS(), resourceSystem->getSceneManager(),
+        , mShapeManager(std::make_unique<Resource::BulletShapeManager>(resourceSystem->getVFS(),
-                resourceSystem->getNifFileManager(), Settings::cells().mCacheExpiryDelay))
+              resourceSystem->getSceneManager(), resourceSystem->getNifFileManager(),
+              Settings::cells().mCacheExpiryDelay))
         , mResourceSystem(resourceSystem)
         , mDebugDrawEnabled(false)
         , mTimeAccum(0.0f)
@@ -103,7 +104,6 @@ namespace MWPhysics
         , mWaterHeight(0)
         , mWaterEnabled(false)
         , mParentNode(std::move(parentNode))
-        , mPhysicsDt(1.f / 60.f)
     {
         mResourceSystem->addResourceManager(mShapeManager.get());
 

apps/openmw/mwphysics/physicssystem.hpp

@@ -287,6 +287,8 @@ namespace MWPhysics
         void reportStats(unsigned int frameNumber, osg::Stats& stats) const;
         void reportCollision(const btVector3& position, const btVector3& normal);
 
+        float mPhysicsDt;
+
     private:
         void updateWater();
 
@@ -330,8 +332,6 @@ namespace MWPhysics
 
         osg::ref_ptr<osg::Group> mParentNode;
 
-        float mPhysicsDt;
-
         std::size_t mSimulationsCounter = 0;
         std::array<std::vector<Simulation>, 2> mSimulations;
         std::vector<std::pair<MWWorld::Ptr, osg::Vec3f>> mActorsPositions;

apps/openmw/mwsound/openaloutput.cpp

@@ -15,6 +15,7 @@
 #include <components/misc/constants.hpp>
 #include <components/misc/resourcehelpers.hpp>
 #include <components/misc/thread.hpp>
+#include <components/settings/values.hpp>
 #include <components/vfs/manager.hpp>
 
 #include "efxpresets.h"
@@ -963,6 +964,7 @@ namespace MWSound
         // Speed of sound is in units per second. Take the sound speed in air (assumed
         // meters per second), multiply by the units per meter to get the speed in u/s.
         alSpeedOfSound(Constants::SoundSpeedInAir * Constants::UnitsPerMeter);
+        alDopplerFactor(Settings::sound().mDopplerFactor);
         alGetError();
 
         mInitialized = true;
@@ -1142,8 +1144,8 @@ namespace MWSound
         alSource3f(source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
     }
 
-    void OpenALOutput::initCommon3D(ALuint source, const osg::Vec3f& pos, ALfloat mindist, ALfloat maxdist,
+    void OpenALOutput::initCommon3D(ALuint source, const osg::Vec3f& pos, const osg::Vec3f& vel, ALfloat mindist,
-        ALfloat gain, ALfloat pitch, bool loop, bool useenv)
+        ALfloat maxdist, ALfloat gain, ALfloat pitch, bool loop, bool useenv)
     {
         alSourcef(source, AL_REFERENCE_DISTANCE, mindist);
         alSourcef(source, AL_MAX_DISTANCE, maxdist);
@@ -1179,11 +1181,11 @@ namespace MWSound
         alSourcef(source, AL_PITCH, pitch);
         alSourcefv(source, AL_POSITION, pos.ptr());
         alSource3f(source, AL_DIRECTION, 0.0f, 0.0f, 0.0f);
-        alSource3f(source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
+        alSourcefv(source, AL_VELOCITY, vel.ptr());
     }
 
-    void OpenALOutput::updateCommon(
+    void OpenALOutput::updateCommon(ALuint source, const osg::Vec3f& pos, const osg::Vec3f& vel, ALfloat maxdist,
-        ALuint source, const osg::Vec3f& pos, ALfloat maxdist, ALfloat gain, ALfloat pitch, bool useenv)
+        ALfloat gain, ALfloat pitch, bool useenv)
     {
         if (useenv && mListenerEnv == Env_Underwater && !mWaterFilter)
         {
@@ -1195,7 +1197,7 @@ namespace MWSound
         alSourcef(source, AL_PITCH, pitch);
         alSourcefv(source, AL_POSITION, pos.ptr());
         alSource3f(source, AL_DIRECTION, 0.0f, 0.0f, 0.0f);
-        alSource3f(source, AL_VELOCITY, 0.0f, 0.0f, 0.0f);
+        alSourcefv(source, AL_VELOCITY, vel.ptr());
     }
 
     bool OpenALOutput::playSound(Sound* sound, Sound_Handle data, float offset)
@@ -1248,8 +1250,9 @@ namespace MWSound
         }
         source = mFreeSources.front();
 
-        initCommon3D(source, sound->getPosition(), sound->getMinDistance(), sound->getMaxDistance(),
+        initCommon3D(source, sound->getPosition(), sound->getVelocity(), sound->getMinDistance(),
-            sound->getRealVolume(), getTimeScaledPitch(sound), sound->getIsLooping(), sound->getUseEnv());
+            sound->getMaxDistance(), sound->getRealVolume(), getTimeScaledPitch(sound), sound->getIsLooping(),
+            sound->getUseEnv());
         alSourcei(source, AL_BUFFER, GET_PTRID(data));
         alSourcef(source, AL_SEC_OFFSET, offset);
         if (getALError() != AL_NO_ERROR)
@@ -1312,8 +1315,8 @@ namespace MWSound
             return;
         ALuint source = GET_PTRID(sound->mHandle);
 
-        updateCommon(source, sound->getPosition(), sound->getMaxDistance(), sound->getRealVolume(),
+        updateCommon(source, sound->getPosition(), sound->getVelocity(), sound->getMaxDistance(),
-            getTimeScaledPitch(sound), sound->getUseEnv());
+            sound->getRealVolume(), getTimeScaledPitch(sound), sound->getUseEnv());
         getALError();
     }
 
@@ -1360,8 +1363,8 @@ namespace MWSound
         if (sound->getIsLooping())
             Log(Debug::Warning) << "Warning: cannot loop stream \"" << decoder->getName() << "\"";
 
-        initCommon3D(source, sound->getPosition(), sound->getMinDistance(), sound->getMaxDistance(),
+        initCommon3D(source, sound->getPosition(), sound->getVelocity(), sound->getMinDistance(),
-            sound->getRealVolume(), getTimeScaledPitch(sound), false, sound->getUseEnv());
+            sound->getMaxDistance(), sound->getRealVolume(), getTimeScaledPitch(sound), false, sound->getUseEnv());
         if (getALError() != AL_NO_ERROR)
             return false;
 
@@ -1443,8 +1446,8 @@ namespace MWSound
         OpenAL_SoundStream* stream = reinterpret_cast<OpenAL_SoundStream*>(sound->mHandle);
         ALuint source = stream->mSource;
 
-        updateCommon(source, sound->getPosition(), sound->getMaxDistance(), sound->getRealVolume(),
+        updateCommon(source, sound->getPosition(), sound->getVelocity(), sound->getMaxDistance(),
-            getTimeScaledPitch(sound), sound->getUseEnv());
+            sound->getRealVolume(), getTimeScaledPitch(sound), sound->getUseEnv());
         getALError();
     }
 
@@ -1459,12 +1462,13 @@ namespace MWSound
     }
 
     void OpenALOutput::updateListener(
-        const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir, Environment env)
+        const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir, const osg::Vec3f& vel, Environment env)
     {
         if (mContext)
         {
             ALfloat orient[6] = { atdir.x(), atdir.y(), atdir.z(), updir.x(), updir.y(), updir.z() };
             alListenerfv(AL_POSITION, pos.ptr());
+            alListenerfv(AL_VELOCITY, vel.ptr());
             alListenerfv(AL_ORIENTATION, orient);
 
             if (env != mListenerEnv)
@@ -1497,6 +1501,7 @@ namespace MWSound
         }
 
         mListenerPos = pos;
+        mListenerVel = vel;
         mListenerEnv = env;
     }
 
@@ -1582,7 +1587,6 @@ namespace MWSound
         : SoundOutput(mgr)
         , mDevice(nullptr)
         , mContext(nullptr)
-        , mListenerPos(0.0f, 0.0f, 0.0f)
         , mListenerEnv(Env_Normal)
         , mWaterFilter(0)
         , mWaterEffect(0)

apps/openmw/mwsound/openaloutput.hpp

@@ -46,6 +46,7 @@ namespace MWSound
         StreamVec mActiveStreams;
 
         osg::Vec3f mListenerPos;
+        osg::Vec3f mListenerVel;
         Environment mListenerEnv;
 
         ALuint mWaterFilter;
@@ -64,11 +65,11 @@ namespace MWSound
         std::unique_ptr<DefaultDeviceThread> mDefaultDeviceThread;
 
         void initCommon2D(ALuint source, const osg::Vec3f& pos, ALfloat gain, ALfloat pitch, bool loop, bool useenv);
-        void initCommon3D(ALuint source, const osg::Vec3f& pos, ALfloat mindist, ALfloat maxdist, ALfloat gain,
+        void initCommon3D(ALuint source, const osg::Vec3f& pos, const osg::Vec3f& vel, ALfloat mindist, ALfloat maxdist,
-            ALfloat pitch, bool loop, bool useenv);
+            ALfloat gain, ALfloat pitch, bool loop, bool useenv);
 
-        void updateCommon(
+        void updateCommon(ALuint source, const osg::Vec3f& pos, const osg::Vec3f& vel, ALfloat maxdist, ALfloat gain,
-            ALuint source, const osg::Vec3f& pos, ALfloat maxdist, ALfloat gain, ALfloat pitch, bool useenv);
+            ALfloat pitch, bool useenv);
 
         float getTimeScaledPitch(SoundBase* sound);
 
@@ -108,8 +109,8 @@ namespace MWSound
         void startUpdate() override;
         void finishUpdate() override;
 
-        void updateListener(
+        void updateListener(const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir,
-            const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir, Environment env) override;
+            const osg::Vec3f& vel, Environment env) override;
 
         void pauseSounds(int types) override;
         void resumeSounds(int types) override;

apps/openmw/mwsound/sound.hpp

@@ -31,6 +31,8 @@ namespace MWSound
     struct SoundParams
     {
         osg::Vec3f mPos;
+        osg::Vec3f mLastPos;
+        osg::Vec3f mVel;
         float mVolume = 1.0f;
         float mBaseVolume = 1.0f;
         float mPitch = 1.0f;
@@ -57,6 +59,8 @@ namespace MWSound
 
     public:
         void setPosition(const osg::Vec3f& pos) { mParams.mPos = pos; }
+        void setLastPosition(const osg::Vec3f& lastpos) { mParams.mLastPos = lastpos; }
+        void setVelocity(const osg::Vec3f& vel) { mParams.mVel = vel; }
         void setVolume(float volume) { mParams.mVolume = volume; }
         void setBaseVolume(float volume) { mParams.mBaseVolume = volume; }
         void setFadeout(float duration) { setFade(duration, 0.0, Play_StopAtFadeEnd); }
@@ -150,6 +154,8 @@ namespace MWSound
         }
 
         const osg::Vec3f& getPosition() const { return mParams.mPos; }
+        const osg::Vec3f& getLastPosition() const { return mParams.mLastPos; }
+        const osg::Vec3f& getVelocity() const { return mParams.mVel; }
         float getRealVolume() const { return mParams.mVolume * mParams.mBaseVolume * mParams.mFadeVolume; }
         float getPitch() const { return mParams.mPitch; }
         float getMinDistance() const { return mParams.mMinDistance; }

apps/openmw/mwsound/soundmanagerimp.cpp

@@ -119,6 +119,7 @@ namespace MWSound
         , mListenerPos(0, 0, 0)
         , mListenerDir(1, 0, 0)
         , mListenerUp(0, 0, 1)
+        , mListenerVel(0, 0, 0)
         , mUnderwaterSound(nullptr)
         , mNearWaterSound(nullptr)
         , mPlaybackPaused(false)
@@ -960,7 +961,7 @@ namespace MWSound
         }
 
         mOutput->startUpdate();
-        mOutput->updateListener(mListenerPos, mListenerDir, mListenerUp, env);
+        mOutput->updateListener(mListenerPos, mListenerDir, mListenerUp, mListenerVel, env);
 
         updateMusic(duration);
 
@@ -977,7 +978,13 @@ namespace MWSound
                 if (sound->getIs3D())
                 {
                     if (!ptr.isEmpty())
+                    {
+                        sound->setLastPosition(sound->getPosition());
                         sound->setPosition(ptr.getRefData().getPosition().asVec3());
+                        MWBase::World* world = MWBase::Environment::get().getWorld();
+                        sound->setVelocity(
+                            (sound->getPosition() - sound->getLastPosition()) / world->getPhysicsFrameRateDt());
+                    }
 
                     cull3DSound(sound);
                 }
@@ -1013,8 +1020,11 @@ namespace MWSound
             {
                 if (!ptr.isEmpty())
                 {
+                    sound->setLastPosition(sound->getPosition());
                     MWBase::World* world = MWBase::Environment::get().getWorld();
                     sound->setPosition(world->getActorHeadTransform(ptr).getTrans());
+                    sound->setVelocity(
+                        (sound->getPosition() - sound->getLastPosition()) / world->getPhysicsFrameRateDt());
                 }
 
                 cull3DSound(sound);
@@ -1153,6 +1163,11 @@ namespace MWSound
         mWaterSoundUpdater.setUnderwater(underwater);
     }
 
+    void SoundManager::setListenerVel(const osg::Vec3f& vel)
+    {
+        mListenerVel = vel;
+    }
+
     void SoundManager::updatePtr(const MWWorld::ConstPtr& old, const MWWorld::ConstPtr& updated)
     {
         SoundMap::iterator snditer = mActiveSounds.find(old.mRef);

apps/openmw/mwsound/soundmanagerimp.hpp

@@ -92,6 +92,7 @@ namespace MWSound
         osg::Vec3f mListenerPos;
         osg::Vec3f mListenerDir;
         osg::Vec3f mListenerUp;
+        osg::Vec3f mListenerVel;
 
         int mPausedSoundTypes[BlockerType::MaxCount] = {};
 
@@ -283,6 +284,8 @@ namespace MWSound
         void setListenerPosDir(
             const osg::Vec3f& pos, const osg::Vec3f& dir, const osg::Vec3f& up, bool underwater) override;
 
+        void setListenerVel(const osg::Vec3f& vel) override;
+
         void updatePtr(const MWWorld::ConstPtr& old, const MWWorld::ConstPtr& updated) override;
 
         void clear() override;

apps/openmw/mwsound/soundoutput.hpp

@@ -61,8 +61,8 @@ namespace MWSound
         virtual void startUpdate() = 0;
         virtual void finishUpdate() = 0;
 
-        virtual void updateListener(
+        virtual void updateListener(const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir,
-            const osg::Vec3f& pos, const osg::Vec3f& atdir, const osg::Vec3f& updir, Environment env)
+            const osg::Vec3f& vel, Environment env)
             = 0;
 
         virtual void pauseSounds(int types) = 0;

apps/openmw/mwworld/projectilemanager.cpp

@@ -461,6 +461,11 @@ namespace MWWorld
 
             update(magicBoltState, duration);
 
+            for (const auto& sound : magicBoltState.mSounds)
+            {
+                sound->setVelocity(direction * speed);
+            }
+
             // For AI actors, get combat targets to use in the ray cast. Only those targets will return a positive hit
             // result.
             std::vector<MWWorld::Ptr> targetActors;

apps/openmw/mwworld/worldimp.cpp

@@ -1460,6 +1460,8 @@ namespace MWWorld
     void World::queueMovement(const Ptr& ptr, const osg::Vec3f& velocity)
     {
         mPhysics->queueObjectMovement(ptr, velocity);
+        if (ptr == MWMechanics::getPlayer())
+            MWBase::Environment::get().getSoundManager()->setListenerVel(velocity);
     }
 
     void World::updateAnimatedCollisionShape(const Ptr& ptr)
@@ -3182,6 +3184,11 @@ namespace MWWorld
         return mWeatherManager->getSunPercentage(getTimeStamp().getHour());
     }
 
+    float World::getPhysicsFrameRateDt() const
+    {
+        return mPhysics->mPhysicsDt;
+    }
+
     bool World::findInteriorPositionInWorldSpace(const MWWorld::CellStore* cell, osg::Vec3f& result)
     {
         if (cell->isExterior())

apps/openmw/mwworld/worldimp.hpp

@@ -584,6 +584,8 @@ namespace MWWorld
         float getSunVisibility() const override;
         float getSunPercentage() const override;
 
+        float getPhysicsFrameRateDt() const override;
+
         bool findInteriorPositionInWorldSpace(const MWWorld::CellStore* cell, osg::Vec3f& result) override;
 
         /// Teleports \a ptr to the closest reference of \a id (e.g. DivineMarker, PrisonMarker, TempleMarker)

components/settings/categories/sound.hpp

@@ -24,6 +24,7 @@ namespace Settings
         SettingValue<HrtfMode> mHrtfEnable{ mIndex, "Sound", "hrtf enable" };
         SettingValue<std::string> mHrtf{ mIndex, "Sound", "hrtf" };
         SettingValue<bool> mCameraListener{ mIndex, "Sound", "camera listener" };
+        SettingValue<float> mDopplerFactor{ mIndex, "Sound", "doppler factor", makeClampSanitizerFloat(0, 1) };
     };
 }
 

docs/source/reference/modding/settings/sound.rst

@@ -121,3 +121,13 @@ Sound Settings
    When true, uses the camera position and direction for audio instead of the player position.
    This makes audio in third person sound relative to camera instead of the player.
    False is vanilla Morrowind behaviour.
+
+.. omw-setting::
+   :title: doppler factor
+   :type: float32
+   :range: 0.0 (disabled), 1.0 (maximum strength)
+   :default: 0.25
+   :location: :bdg-success:`Launcher > Settings > Audio`
+
+   This setting controls the strength of the Doppler effect. The Doppler effect increases or decreases the pitch of sounds
+   relative to the velocity of the sound source and the listener.

files/lang/launcher_de.ts

@@ -1451,5 +1451,13 @@ to default Morrowind fonts. Check this box if you still prefer original fonts ov
         <source>Run Script After Startup:</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Doppler Factor</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 </TS>

files/lang/launcher_en.ts

@@ -1451,5 +1451,13 @@ to default Morrowind fonts. Check this box if you still prefer original fonts ov
         <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;If enabled - makes transitions between different animations/poses much smoother. Also allows to load animation blending config YAML files that can be bundled with animations in order to customise blending styles.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
         <translation></translation>
     </message>
+    <message>
+        <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
+        <translation></translation>
+    </message>
+    <message>
+        <source>Doppler Factor</source>
+        <translation></translation>
+    </message>
 </context>
 </TS>

files/lang/launcher_fr.ts

@@ -1454,5 +1454,13 @@ to default Morrowind fonts. Check this box if you still prefer original fonts ov
         <source>Run Script After Startup:</source>
         <translation>Script à lancer après démarrage :</translation>
     </message>
+    <message>
+        <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <source>Doppler Factor</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 </TS>

files/lang/launcher_ru.ts

@@ -1466,5 +1466,13 @@ to default Morrowind fonts. Check this box if you still prefer original fonts ov
         <source>Use the Camera as the Sound Listener</source>
         <translation>Использовать камеру как слушателя</translation>
     </message>
+    <message>
+        <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
+        <translation>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Определяет силу эффекта Доплера. Нулевое значение означает, что эффект отключен полностью.&lt;/p&gt;&lt;p&gt;Эффект Доплера увеличивает или уменьшает высоту звуков в зависимости от скорости источника звука и слушателя.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</translation>
+    </message>
+    <message>
+        <source>Doppler Factor</source>
+        <translation>Множитель эффекта Доплера</translation>
+    </message>
 </context>
 </TS>

files/lang/launcher_sv.ts

@@ -1470,5 +1470,13 @@ de ordinarie fonterna i Morrowind. Bocka denna ruta om du ändå föredrar ordin
         <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;If enabled - makes transitions between different animations/poses much smoother. Also allows to load animation blending config YAML files that can be bundled with animations in order to customise blending styles.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
         <translation>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Vid aktivering gör denna funktion att övergångarna mellan olika animationer och poser blir mycket mjukare. Funktionen gör det också möjligt att konfigurera animationsövergångarna i YAML-filer. Dessa filer kan buntas ihop tillsammans med nya animationsfiler.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</translation>
     </message>
+    <message>
+        <source>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Controls the strength of the Doppler effect. Zero means it is completely disabled.&lt;/p&gt;&lt;p&gt;The Doppler effect increases or decreases the pitch of sounds relative to the velocity of the sound source and the listener.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</source>
+        <translation>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Kontrollerar styrkan på dopplereffekten. Noll innebär helt inaktiverat.&lt;/p&gt;&lt;p&gt;Dopplereffekten höjer eller sänker tonhöjden på ljud i förhållande till ljudkällans hastighet och lyssnaren.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</translation>
+    </message>
+    <message>
+        <source>Doppler Factor</source>
+        <translation>Dopplerfaktor</translation>
+    </message>
 </context>
 </TS>

files/settings-default.cfg

@@ -624,6 +624,9 @@ hrtf =
 # Specifies whether to use camera as audio listener
 camera listener = false
 
+# Specifies strength of doppler effect
+doppler factor = 0.25
+
 [Video]
 
 # Resolution of the OpenMW window or screen.