do not attenuate that much in the server, more fair reduction of quality parameters in the server

src/channel.cpp

@@ -298,8 +298,11 @@ void CChannelSet::SetOutputParameters()
             break;
         }
 
-        int iCurCh = 0;
-        while ( ( iCurCh < USED_NUM_CHANNELS ) && ( !bUploadRateIsBelowLimit ) )
+        // we try to set the worst parameters to the clients which connected
+        // the latest to the server, therefore we apply the new parameters to
+        // the last channels first
+        int iCurCh = USED_NUM_CHANNELS - 1;
+        while ( ( iCurCh >= 0 ) && ( !bUploadRateIsBelowLimit ) )
         {
             if ( vecChannels[iCurCh].IsConnected() )
             {
@@ -312,8 +315,8 @@ void CChannelSet::SetOutputParameters()
                     ( CalculateTotalUploadRateKbps() <= iUploadRateLimitKbps );
             }
 
-            // next channel
-            iCurCh++;
+            // next channel (backwards counting)
+            iCurCh--;
         }
 
         // next trial index

src/server.cpp

@@ -183,8 +183,8 @@ CVector<short> CServer::ProcessData ( CVector<CVector<double> >& vecvecdData,
 
     const int iNumClients = vecvecdData.Size();
 
-    // 3 dB offset to avoid overload if all clients are set to gain 1
-    const double dNorm = (double) 2.0;
+    // some offset to avoid overload when mixing clients together
+    const double dNorm = (double) 1.25;
 
     // mix all audio data from all clients together
     for ( int i = 0; i < MIN_SERVER_BLOCK_SIZE_SAMPLES; i++ )