diff --git a/plugins/samplesink/limesdroutput/limesdroutputgui.cpp b/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
index a7e2fe0b0..ae08449c3 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutputgui.cpp
@@ -395,7 +395,7 @@ void LimeSDROutputGUI::on_hwInterp_currentIndexChanged(int index)
 
 void LimeSDROutputGUI::on_swInterp_currentIndexChanged(int index)
 {
-    if ((index <0) || (index > 5))
+    if ((index <0) || (index > 6))
         return;
     m_settings.m_log2SoftInterp = index;
     sendSettings();
diff --git a/plugins/samplesink/limesdroutput/limesdroutputgui.ui b/plugins/samplesink/limesdroutput/limesdroutputgui.ui
index c9bc67345..0d3eceeaa 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputgui.ui
+++ b/plugins/samplesink/limesdroutput/limesdroutputgui.ui
@@ -295,7 +295,7 @@
         <string>TSP hardware interpolation factor</string>
        </property>
        <property name="currentIndex">
-        <number>2</number>
+        <number>0</number>
        </property>
        <item>
         <property name="text">
@@ -383,6 +383,11 @@
          <string>32</string>
         </property>
        </item>
+       <item>
+        <property name="text">
+         <string>64</string>
+        </property>
+       </item>
       </widget>
      </item>
      <item>
diff --git a/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp b/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
index a7b5591ca..82e7af93f 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutputplugin.cpp
@@ -30,7 +30,7 @@
 
 const PluginDescriptor LimeSDROutputPlugin::m_pluginDescriptor = {
     QString("LimeSDR Output"),
-    QString("3.4.0"),
+    QString("3.4.4"),
     QString("(c) Edouard Griffiths, F4EXB"),
     QString("https://github.com/f4exb/sdrangel"),
     true,
diff --git a/plugins/samplesink/limesdroutput/limesdroutputthread.cpp b/plugins/samplesink/limesdroutput/limesdroutputthread.cpp
index 0048bcd16..0f5f3043d 100644
--- a/plugins/samplesink/limesdroutput/limesdroutputthread.cpp
+++ b/plugins/samplesink/limesdroutput/limesdroutputthread.cpp
@@ -84,9 +84,9 @@ void LimeSDROutputThread::run()
     }
 
     count = 0;
-    msleep = LIMESDROUTPUT_BLOCKSIZE/(m_sampleRate/1e6f);
-    mdelta = msleep/100;
-    msleep = (3*msleep)/4; // to start faster
+//    msleep = LIMESDROUTPUT_BLOCKSIZE/(m_sampleRate/1e6f);
+//    mdelta = msleep/100;
+//    msleep = (3*msleep)/4; // to start faster
 
     while (m_running)
     {
@@ -104,25 +104,25 @@ void LimeSDROutputThread::run()
             qDebug("LimeSDROutputThread::run written %d/%d samples", res, LIMESDROUTPUT_BLOCKSIZE);
         }
 
-        usleep(msleep);
-
-        if (count < 10)
-        {
-            count++;
-        }
-        else
-        {
-            if (LMS_GetStreamStatus(m_stream, &streamStatus) == 0)
-            {
-                if (streamStatus.fifoFilledCount < (4*streamStatus.fifoSize)/5) { // FIFO at 80%
-                    msleep -= mdelta;
-                } else {
-                    msleep += mdelta;
-                }
-            }
-
-            count = 0;
-        }
+//        usleep(msleep);
+//
+//        if (count < 10)
+//        {
+//            count++;
+//        }
+//        else
+//        {
+//            if (LMS_GetStreamStatus(m_stream, &streamStatus) == 0)
+//            {
+//                if (streamStatus.fifoFilledCount < (4*streamStatus.fifoSize)/5) { // FIFO at 80%
+//                    msleep -= mdelta;
+//                } else {
+//                    msleep += mdelta;
+//                }
+//            }
+//
+//            count = 0;
+//        }
     }
 
     if (LMS_StopStream(m_stream) < 0) {
diff --git a/plugins/samplesource/limesdrinput/limesdrinputgui.cpp b/plugins/samplesource/limesdrinput/limesdrinputgui.cpp
index e8ca12ab4..a745446b3 100644
--- a/plugins/samplesource/limesdrinput/limesdrinputgui.cpp
+++ b/plugins/samplesource/limesdrinput/limesdrinputgui.cpp
@@ -427,7 +427,7 @@ void LimeSDRInputGUI::on_hwDecim_currentIndexChanged(int index)
 
 void LimeSDRInputGUI::on_swDecim_currentIndexChanged(int index)
 {
-    if ((index <0) || (index > 5))
+    if ((index <0) || (index > 6))
         return;
     m_settings.m_log2SoftDecim = index;
     sendSettings();
diff --git a/plugins/samplesource/limesdrinput/limesdrinputgui.ui b/plugins/samplesource/limesdrinput/limesdrinputgui.ui
index 135166fa0..d8ddb8325 100644
--- a/plugins/samplesource/limesdrinput/limesdrinputgui.ui
+++ b/plugins/samplesource/limesdrinput/limesdrinputgui.ui
@@ -330,7 +330,7 @@
         <string>TSP hardware decimation factor</string>
        </property>
        <property name="currentIndex">
-        <number>2</number>
+        <number>0</number>
        </property>
        <item>
         <property name="text">
@@ -418,6 +418,11 @@
          <string>32</string>
         </property>
        </item>
+       <item>
+        <property name="text">
+         <string>64</string>
+        </property>
+       </item>
       </widget>
      </item>
      <item>
diff --git a/plugins/samplesource/limesdrinput/limesdrinputplugin.cpp b/plugins/samplesource/limesdrinput/limesdrinputplugin.cpp
index 7f6a5be86..5e54a47db 100644
--- a/plugins/samplesource/limesdrinput/limesdrinputplugin.cpp
+++ b/plugins/samplesource/limesdrinput/limesdrinputplugin.cpp
@@ -31,7 +31,7 @@
 
 const PluginDescriptor LimeSDRInputPlugin::m_pluginDescriptor = {
     QString("LimeSDR Input"),
-    QString("3.4.0"),
+    QString("3.4.4"),
     QString("(c) Edouard Griffiths, F4EXB"),
     QString("https://github.com/f4exb/sdrangel"),
     true,
diff --git a/plugins/samplesource/limesdrinput/limesdrinputthread.cpp b/plugins/samplesource/limesdrinput/limesdrinputthread.cpp
index 1af495f12..752eff8bf 100644
--- a/plugins/samplesource/limesdrinput/limesdrinputthread.cpp
+++ b/plugins/samplesource/limesdrinput/limesdrinputthread.cpp
@@ -132,6 +132,9 @@ void LimeSDRInputThread::callback(const qint16* buf, qint32 len)
             case 5:
                 m_decimators.decimate32_inf(&it, buf, len);
                 break;
+            case 6:
+                m_decimators.decimate64_inf(&it, buf, len);
+                break;
             default:
                 break;
             }
@@ -155,6 +158,9 @@ void LimeSDRInputThread::callback(const qint16* buf, qint32 len)
             case 5:
                 m_decimators.decimate32_sup(&it, buf, len);
                 break;
+            case 6:
+                m_decimators.decimate64_sup(&it, buf, len);
+                break;
             default:
                 break;
             }
@@ -178,6 +184,9 @@ void LimeSDRInputThread::callback(const qint16* buf, qint32 len)
             case 5:
                 m_decimators.decimate32_cen(&it, buf, len);
                 break;
+            case 6:
+                m_decimators.decimate64_cen(&it, buf, len);
+                break;
             default:
                 break;
             }