diff --git a/docs/ReleaseNotes.md b/docs/ReleaseNotes.md
index 6de03f8..1e83cd4 100644
--- a/docs/ReleaseNotes.md
+++ b/docs/ReleaseNotes.md
@@ -12,6 +12,7 @@ Bug Fixes:
 - A fix for the dreaded "Audio Stopped" error (and associated memory corruption). You may underrun, but at least audio won't stop.
 - Further improvements to clean (and timely) shutdown procedure.
 - Minor UI improvements for adaptive display on small devices.
+- A bug in TooB Freeverb that causes memory use to increase exponentially each time the plugin is loaded.
 
 
 ## PiPedal 1.2.52 Release
diff --git a/lv2/aarch64/ToobAmp.lv2/CabIR.ttl b/lv2/aarch64/ToobAmp.lv2/CabIR.ttl
index d1b9de0..b3be428 100644
--- a/lv2/aarch64/ToobAmp.lv2/CabIR.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/CabIR.ttl
@@ -23,6 +23,7 @@
 @prefix state: <http://lv2plug.in/ns/ext/state#> .
 @prefix urid: <http://lv2plug.in/ns/ext/urid#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix mod: <http://moddevices.com/ns/mod#>.
 
 
 @prefix cabir: <http://two-play.com/plugins/toob-cab-ir#> .
@@ -33,6 +34,7 @@
 cabir:impulseFile1Group
     a param:ControlGroup ,
         pg:InputGroup ;
+
     lv2:name "Impulse Response 1" ;
     lv2:symbol "impulse1" .
 
@@ -53,6 +55,7 @@ cabir:impulseFile
         a lv2:Parameter;
         rdfs:label "IR";
         pg:group cabir:impulseFile1Group ;
+        mod:fileTypes "wav,flac";
 
         rdfs:range atom:Path.
 
@@ -60,12 +63,14 @@ cabir:impulseFile2
         a lv2:Parameter;
         rdfs:label "IR";
         pg:group cabir:impulseFile2Group ;
+        mod:fileTypes "wav,flac";
         rdfs:range atom:Path.
 
 cabir:impulseFile3
         a lv2:Parameter;
         rdfs:label "IR";
         pg:group cabir:impulseFile3Group ;
+        mod:fileTypes "wav,flac";
         rdfs:range atom:Path.
 
 
@@ -88,7 +93,7 @@ cabir:impulseFile3
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 
 TooB Cab IR is a convolution-based guitar cabinet impulse response simulator.
diff --git a/lv2/aarch64/ToobAmp.lv2/CabSim.ttl b/lv2/aarch64/ToobAmp.lv2/CabSim.ttl
index dfadfb4..24afc03 100644
--- a/lv2/aarch64/ToobAmp.lv2/CabSim.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/CabSim.ttl
@@ -49,7 +49,7 @@ toob:frequencyResponseVector
     doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
     doap:maintainer <http://two-play.com/rerdavies#me> ;
     lv2:minorVersion 0 ;
-    lv2:microVersion 48 ;
+    lv2:microVersion 49 ;
 
     mod:brand "TooB";
     mod:label "TooB CabSim";
diff --git a/lv2/aarch64/ToobAmp.lv2/ConvolutionReverb.ttl b/lv2/aarch64/ToobAmp.lv2/ConvolutionReverb.ttl
index e24df4a..0514a21 100644
--- a/lv2/aarch64/ToobAmp.lv2/ConvolutionReverb.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ConvolutionReverb.ttl
@@ -23,7 +23,7 @@
 @prefix state: <http://lv2plug.in/ns/ext/state#> .
 @prefix urid: <http://lv2plug.in/ns/ext/urid#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
-
+@prefix mod: <http://moddevices.com/ns/mod#>.
 
 @prefix toobcr: <http://two-play.com/plugins/toob-convolution-reverb#> .
 @prefix toobimpulse: <http://two-play.com/plugins/toob-impulse#> .
@@ -32,9 +32,11 @@
 toobimpulse:impulseFile
         a lv2:Parameter;
         rdfs:label "Reverb Impulse File";
+        mod:fileTypes "wav,flac";
         rdfs:range atom:Path.
 
 
+
 <http://two-play.com/rerdavies#me>
 	a foaf:Person ;
 	foaf:name "Robin Davies" ;
@@ -51,7 +53,7 @@ toobimpulse:impulseFile
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 
 Convolution reverb is a notoriously compute-intensive effect. If you are having performance issues,  use the Max T control to constrain the length of the impulse file to
diff --git a/lv2/aarch64/ToobAmp.lv2/ConvolutionReverbStereo.ttl b/lv2/aarch64/ToobAmp.lv2/ConvolutionReverbStereo.ttl
index d42d446..4ac8a0a 100644
--- a/lv2/aarch64/ToobAmp.lv2/ConvolutionReverbStereo.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ConvolutionReverbStereo.ttl
@@ -23,6 +23,7 @@
 @prefix state: <http://lv2plug.in/ns/ext/state#> .
 @prefix urid: <http://lv2plug.in/ns/ext/urid#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix mod: <http://moddevices.com/ns/mod#>.
 
 @prefix toobcrs: <http://two-play.com/plugins/toob-convolution-reverb-stereo#> .
 @prefix toobimpulse: <http://two-play.com/plugins/toob-impulse#> .
@@ -30,6 +31,7 @@
 toobimpulse:impulseFile
         a lv2:Parameter;
         rdfs:label "File";
+        mod:fileTypes "wav,flac";
         rdfs:range atom:Path.
 
 
@@ -49,7 +51,7 @@ toobimpulse:impulseFile
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
          lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 
 
diff --git a/lv2/aarch64/ToobAmp.lv2/InputStage.ttl b/lv2/aarch64/ToobAmp.lv2/InputStage.ttl
index 3c49d4e..2f4e176 100644
--- a/lv2/aarch64/ToobAmp.lv2/InputStage.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/InputStage.ttl
@@ -65,7 +65,7 @@ inputStage:filterGroup
         doap:license <https://two-play.com/TooB/licenses/isc> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
 
         mod:brand "TooB";
         mod:label "TooB Input";
diff --git a/lv2/aarch64/ToobAmp.lv2/PowerStage2l.ttl b/lv2/aarch64/ToobAmp.lv2/PowerStage2l.ttl
index 019a919..b513012 100644
--- a/lv2/aarch64/ToobAmp.lv2/PowerStage2l.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/PowerStage2l.ttl
@@ -67,7 +67,7 @@ pstage:stage3
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
          lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
 
         mod:brand "TooB";
         mod:label "Power Stage";
diff --git a/lv2/aarch64/ToobAmp.lv2/SpectrumAnalyzer.ttl b/lv2/aarch64/ToobAmp.lv2/SpectrumAnalyzer.ttl
index 6cb3411..8f73067 100644
--- a/lv2/aarch64/ToobAmp.lv2/SpectrumAnalyzer.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/SpectrumAnalyzer.ttl
@@ -58,7 +58,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment "TooB spectrum analyzer" ;
 
         mod:brand "TooB";
diff --git a/lv2/aarch64/ToobAmp.lv2/ToneStack.ttl b/lv2/aarch64/ToobAmp.lv2/ToneStack.ttl
index f81a90d..fe19df6 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToneStack.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToneStack.ttl
@@ -55,7 +55,7 @@ tonestack:eqGroup
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
          lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
 
         uiext:ui <http://two-play.com/plugins/toob-tone-stack-ui>;                
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobAmp.so b/lv2/aarch64/ToobAmp.lv2/ToobAmp.so
index 59074e7..41e1cb0 100644
Binary files a/lv2/aarch64/ToobAmp.lv2/ToobAmp.so and b/lv2/aarch64/ToobAmp.lv2/ToobAmp.so differ
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobAmpUI.so b/lv2/aarch64/ToobAmp.lv2/ToobAmpUI.so
index f5cadc4..d840034 100644
Binary files a/lv2/aarch64/ToobAmp.lv2/ToobAmpUI.so and b/lv2/aarch64/ToobAmp.lv2/ToobAmpUI.so differ
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobChorus.ttl b/lv2/aarch64/ToobAmp.lv2/ToobChorus.ttl
index 11f0c1e..9e201e9 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobChorus.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobChorus.ttl
@@ -40,7 +40,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 Emulation of a Boss CE-2 Chorus.
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobDelay.ttl b/lv2/aarch64/ToobAmp.lv2/ToobDelay.ttl
index 6502d6b..2ee54a2 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobDelay.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobDelay.ttl
@@ -41,7 +41,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 A straightforward no-frills digital delay.
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobFlanger.ttl b/lv2/aarch64/ToobAmp.lv2/ToobFlanger.ttl
index 40d3c30..45553b8 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobFlanger.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobFlanger.ttl
@@ -41,7 +41,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 Emulation of a Boss BF-2 Flanger, based on circuit analysis and simulation of the original.
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobFlangerStereo.ttl b/lv2/aarch64/ToobAmp.lv2/ToobFlangerStereo.ttl
index ee1951b..e922e5c 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobFlangerStereo.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobFlangerStereo.ttl
@@ -41,7 +41,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
          lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 Digital emulation of a Boss BF-2 Flanger.
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobFreeverb.ttl b/lv2/aarch64/ToobAmp.lv2/ToobFreeverb.ttl
index c4a96f1..d0dc2af 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobFreeverb.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobFreeverb.ttl
@@ -41,7 +41,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
          lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 Toob Freeverb is an Lv2 implementation of the famous Freeverb reverb effect. FreeVerb delivers a well-balanced reverb with very little tonal coloration.
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobML.ttl b/lv2/aarch64/ToobAmp.lv2/ToobML.ttl
index bea6da2..e2be1a3 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobML.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobML.ttl
@@ -25,11 +25,13 @@
 @prefix urid: <http://lv2plug.in/ns/ext/urid#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 @prefix toobml: <http://two-play.com/plugins/toob-ml#> .
+@prefix mod: <http://moddevices.com/ns/mod#>.
 
 
 toobml:modelFile
         a lv2:Parameter;
         rdfs:label "Model";
+	mod:fileTypes "nam,nammodel";
         rdfs:range atom:Path.
 
 toobml:filterGroup
@@ -63,7 +65,7 @@ toobml:sagGroup
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 The TooB ML Amplifier plugin provides emulation of a variety of amplifiers and overdrive pedals that are implemented 
 using neural-network-based machine learning models of real amplifiers.
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobNeuralAmpModeler.ttl b/lv2/aarch64/ToobAmp.lv2/ToobNeuralAmpModeler.ttl
index ef68aaa..d7b97e1 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobNeuralAmpModeler.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobNeuralAmpModeler.ttl
@@ -23,6 +23,8 @@
 @prefix state: <http://lv2plug.in/ns/ext/state#> .
 @prefix urid: <http://lv2plug.in/ns/ext/urid#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
+@prefix mod: <http://moddevices.com/ns/mod#>.
+
 @prefix toobNam: <http://two-play.com/plugins/toob-nam#> .
 
 
@@ -36,6 +38,7 @@
 toobNam:modelFile
         a lv2:Parameter;
         rdfs:label "Model";
+	mod:fileTypes "nam,nammodel";
         rdfs:range atom:Path.
 
 toobNam:eqGroup
@@ -58,7 +61,7 @@ toobNam:eqGroup
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 A port of Steven Atkinson's Neural Amp Modeler to LV2. 
 
diff --git a/lv2/aarch64/ToobAmp.lv2/ToobTuner.ttl b/lv2/aarch64/ToobAmp.lv2/ToobTuner.ttl
index 8e08a17..3f25254 100644
--- a/lv2/aarch64/ToobAmp.lv2/ToobTuner.ttl
+++ b/lv2/aarch64/ToobAmp.lv2/ToobTuner.ttl
@@ -40,7 +40,7 @@
         doap:license <https://rerdavies.github.io/pipedal/LicenseToobAmp> ;
         doap:maintainer <http://two-play.com/rerdavies#me> ;
         lv2:minorVersion 0 ;
-        lv2:microVersion 48 ;
+        lv2:microVersion 49 ;
         rdfs:comment """
 TooB Tuner is a chromatic guitar tuner.
 """ ;