fixes for reverberation in stereo mode (disable channel selection and apply reverb on both channels)

src/client.cpp

@@ -524,7 +524,8 @@ void CClient::Init()
     CycleTimeVariance.Reset();
 
     // init reverberation
-    AudioReverb.Init ( SYSTEM_SAMPLE_RATE );
+    AudioReverbL.Init ( SYSTEM_SAMPLE_RATE );
+    AudioReverbR.Init ( SYSTEM_SAMPLE_RATE );
 
     // inits for CELT coding
     if ( bCeltDoHighQuality )
@@ -634,13 +635,29 @@ void CClient::ProcessAudioDataIntern ( CVector<int16_t>& vecsStereoSndCrd )
         const double dRevLev =
             static_cast<double> ( iReverbLevel ) / AUD_REVERB_MAX / 2;
 
+        if ( bUseStereo )
+        {
+            // for stereo always apply reverberation effect on both channels
+            for ( i = 0; i < iStereoBlockSizeSam; i += 2 )
+            {
+                // left channel
+                vecdAudioStereo[i] +=
+                    dRevLev * AudioReverbL.ProcessSample ( vecdAudioStereo[i] );
+
+                // right channel
+                vecdAudioStereo[i + 1] +=
+                    dRevLev * AudioReverbR.ProcessSample ( vecdAudioStereo[i + 1] );
+            }
+        }
+        else
+        {
             if ( bReverbOnLeftChan )
             {
                 for ( i = 0; i < iStereoBlockSizeSam; i += 2 )
                 {
                     // left channel
                     vecdAudioStereo[i] +=
-                    dRevLev * AudioReverb.ProcessSample ( vecdAudioStereo[i] );
+                        dRevLev * AudioReverbL.ProcessSample ( vecdAudioStereo[i] );
                 }
             }
             else
@@ -649,7 +666,8 @@ void CClient::ProcessAudioDataIntern ( CVector<int16_t>& vecsStereoSndCrd )
                 {
                     // right channel
                     vecdAudioStereo[i] +=
-                    dRevLev * AudioReverb.ProcessSample ( vecdAudioStereo[i] );
+                        dRevLev * AudioReverbR.ProcessSample ( vecdAudioStereo[i] );
+                }
             }
         }
     }

src/client.h

@@ -117,7 +117,8 @@ public:
     void SetReverbOnLeftChan ( const bool bIL )
     {
         bReverbOnLeftChan = bIL;
-        AudioReverb.Clear();
+        AudioReverbL.Clear();
+        AudioReverbR.Clear();
     }
 
     void SetDoAutoSockBufSize ( const bool bValue ) { bDoAutoSockBufSize = bValue; }
@@ -251,7 +252,8 @@ protected:
     int                     iAudioInFader;
     bool                    bReverbOnLeftChan;
     int                     iReverbLevel;
-    CAudioReverb            AudioReverb;
+    CAudioReverb            AudioReverbL;
+    CAudioReverb            AudioReverbR;
 
     int                     iSndCrdPrefFrameSizeFactor;
     int                     iSndCrdFrameSizeFactor;

src/clientsettingsdlg.cpp

@@ -600,6 +600,7 @@ void CClientSettingsDlg::OnUseHighQualityAudioStateChanged ( int value )
 void CClientSettingsDlg::OnUseStereoStateChanged ( int value )
 {
     pClient->SetUseStereo ( value == Qt::Checked );
+    emit StereoCheckBoxChanged();
     UpdateDisplay(); // upload rate will be changed
 }
 

src/clientsettingsdlg.h

@@ -102,4 +102,5 @@ protected:
 
 signals:
     void GUIDesignChanged();
+    void StereoCheckBoxChanged();
 };

src/llconclientdlg.cpp

@@ -254,14 +254,9 @@ CLlconClientDlg::CLlconClientDlg ( CClient*        pNCliP,
 
     // set radio buttons ---
     // reverb channel
-    if ( pClient->IsReverbOnLeftChan() )
+    RevSelectionButtonGroup.addButton ( RadioButtonRevSelL );
-    {
+    RevSelectionButtonGroup.addButton ( RadioButtonRevSelR );
-        RadioButtonRevSelL->setChecked ( true );
+    UpdateRevSelection();
-    }
-    else
-    {
-        RadioButtonRevSelR->setChecked ( true );
-    }
 
 
     // connect on startup ---
@@ -340,11 +335,9 @@ CLlconClientDlg::CLlconClientDlg ( CClient*        pNCliP,
         this, SLOT ( OnSliderAudReverb ( int ) ) );
 
     // radio buttons
-    QObject::connect ( RadioButtonRevSelL, SIGNAL ( clicked() ),
+    QObject::connect ( &RevSelectionButtonGroup,
-        this, SLOT ( OnRevSelL() ) );
+        SIGNAL ( buttonClicked ( QAbstractButton* ) ), this,
-
+        SLOT ( OnRevSelectionButtonGroupClicked ( QAbstractButton* ) ) );
-    QObject::connect ( RadioButtonRevSelR, SIGNAL ( clicked() ),
-        this, SLOT ( OnRevSelR() ) );
 
     // line edits
     QObject::connect ( LineEditFaderTag, SIGNAL ( textChanged ( const QString& ) ),
@@ -376,6 +369,9 @@ CLlconClientDlg::CLlconClientDlg ( CClient*        pNCliP,
     QObject::connect ( &ClientSettingsDlg, SIGNAL ( GUIDesignChanged() ),
         this, SLOT ( OnGUIDesignChanged() ) );
 
+    QObject::connect ( &ClientSettingsDlg, SIGNAL ( StereoCheckBoxChanged() ),
+        this, SLOT ( OnStereoCheckBoxChanged() ) );
+
     QObject::connect ( MainMixerBoard, SIGNAL ( ChangeChanGain ( int, double ) ),
         this, SLOT ( OnChangeChanGain ( int, double ) ) );
 
@@ -446,6 +442,39 @@ void CLlconClientDlg::UpdateAudioFaderSlider()
     }
 }
 
+void CLlconClientDlg::UpdateRevSelection()
+{
+    if ( pClient->GetUseStereo() )
+    {
+        // for stereo set both channels checked and disable all settings
+        RevSelectionButtonGroup.setExclusive ( false );
+
+        // to be able to set both checks, exclusive has to be disabled
+        RadioButtonRevSelL->setChecked ( true );
+        RadioButtonRevSelR->setChecked ( true );
+
+        // enable exclusive again, since this is required for mono mode
+        RevSelectionButtonGroup.setExclusive ( true );
+
+        // the user shall not modify the radio buttons in stereo mode
+        RadioButtonRevSelL->setEnabled ( false );
+        RadioButtonRevSelR->setEnabled ( false );
+    }
+    else
+    {
+        // mono case, enable all radio buttons and set to current value
+        RadioButtonRevSelL->setEnabled ( true );
+        RadioButtonRevSelR->setEnabled ( true );
+
+        // first reset and then set correct selection
+        RadioButtonRevSelL->setChecked ( false );
+        RadioButtonRevSelR->setChecked ( false );
+
+        RadioButtonRevSelL->setChecked ( pClient->IsReverbOnLeftChan() );
+        RadioButtonRevSelR->setChecked ( !pClient->IsReverbOnLeftChan() );
+    }
+}
+
 void CLlconClientDlg::OnSliderAudInFader ( int value )
 {
     pClient->SetAudioInFader ( value );
@@ -535,6 +564,19 @@ void CLlconClientDlg::OnNumClientsChanged ( int iNewNumClients )
     SetMyWindowTitle ( iNewNumClients );
 }
 
+void CLlconClientDlg::OnRevSelectionButtonGroupClicked ( QAbstractButton* button )
+{
+    if ( button == RadioButtonRevSelL )
+    {
+        pClient->SetReverbOnLeftChan ( true );
+    }
+
+    if ( button == RadioButtonRevSelR )
+    {
+        pClient->SetReverbOnLeftChan ( false );
+    }
+}
+
 void CLlconClientDlg::SetMyWindowTitle ( const int iNumClients )
 {
     // show number of connected clients in window title (and therefore also in

src/llconclientdlg.h

@@ -31,6 +31,7 @@
 #include <qtimer.h>
 #include <qslider.h>
 #include <qradiobutton.h>
+#include <qbuttongroup.h>
 #include <qmenubar.h>
 #include <qlayout.h>
 #include "global.h"
@@ -79,6 +80,7 @@ protected:
     void               SetMyWindowTitle ( const int iNumClients );
     void               ShowChatWindow();
     void               UpdateAudioFaderSlider();
+    void               UpdateRevSelection();
     void               ConnectDisconnect ( const bool bDoStart );
 
     CClient*           pClient;
@@ -94,6 +96,8 @@ protected:
     QMenu*             pViewMenu;
     QMenuBar*          pMenu;
 
+    QButtonGroup       RevSelectionButtonGroup;
+
     CClientSettingsDlg ClientSettingsDlg;
     CChatDlg           ChatDlg;
 
@@ -105,8 +109,7 @@ public slots:
     void OnOpenChatDialog() { ShowChatWindow(); }
     void OnSliderAudInFader ( int value );
     void OnSliderAudReverb ( int value ) { pClient->SetReverbLevel ( value ); }
-    void OnRevSelL() { pClient->SetReverbOnLeftChan ( true ); }
+    void OnRevSelectionButtonGroupClicked ( QAbstractButton* button );
-    void OnRevSelR() { pClient->SetReverbOnLeftChan ( false ); }
     void OnConClientListMesReceived ( CVector<CChannelShortInfo> vecChanInfo );
     void OnChangeChanGain ( int iId, double dGain )
         { pClient->SetRemoteChanGain ( iId, dGain ); }
@@ -119,5 +122,6 @@ public slots:
     void OnDisconnected();
     void OnStopped();
     void OnGUIDesignChanged() { SetGUIDesign ( pClient->GetGUIDesign() ); }
+    void OnStereoCheckBoxChanged() { UpdateRevSelection(); }
     void OnNumClientsChanged ( int iNewNumClients );
 };