diff --git a/plugins/LadspaEffect/calf/src/audio_fx.cpp b/plugins/LadspaEffect/calf/src/audio_fx.cpp
index a5695be88..f42ccc0a8 100644
--- a/plugins/LadspaEffect/calf/src/audio_fx.cpp
+++ b/plugins/LadspaEffect/calf/src/audio_fx.cpp
@@ -567,6 +567,22 @@ lookahead_limiter::lookahead_limiter() {
     asc_coeff = 1.f;
 }
 
+lookahead_limiter::~lookahead_limiter()
+{
+	if( buffer != NULL)
+	{
+		free(buffer);
+	}
+	if( nextpos != NULL)
+	{
+		free(nextpos);
+	}
+	if( nextdelta != NULL)
+	{
+		free(nextdelta);
+	}
+}
+
 void lookahead_limiter::activate()
 {
     is_active = true;
diff --git a/plugins/LadspaEffect/calf/src/calf/audio_fx.h b/plugins/LadspaEffect/calf/src/calf/audio_fx.h
index f71880289..1799de944 100644
--- a/plugins/LadspaEffect/calf/src/calf/audio_fx.h
+++ b/plugins/LadspaEffect/calf/src/calf/audio_fx.h
@@ -608,6 +608,7 @@ public:
     void reset_asc();
     bool get_asc();
     lookahead_limiter();
+	~lookahead_limiter();
     void set_multi(bool set);
     void process(float &left, float &right, float *multi_buffer);
     void set_sample_rate(uint32_t sr);
diff --git a/plugins/LadspaEffect/calf/src/calf/ladspa_wrap.h b/plugins/LadspaEffect/calf/src/calf/ladspa_wrap.h
index d94ebcea3..daf7ae258 100644
--- a/plugins/LadspaEffect/calf/src/calf/ladspa_wrap.h
+++ b/plugins/LadspaEffect/calf/src/calf/ladspa_wrap.h
@@ -47,6 +47,7 @@ struct ladspa_instance: public plugin_ctl_iface
 #endif
     
     ladspa_instance(audio_module_iface *_module, ladspa_plugin_metadata_set *_ladspa, int sample_rate);
+	virtual ~ladspa_instance();
     virtual const line_graph_iface *get_line_graph_iface() const { return module->get_line_graph_iface(); }
     virtual float get_param_value(int param_no);
     virtual void set_param_value(int param_no, float value);
diff --git a/plugins/LadspaEffect/calf/src/calf/modules.h b/plugins/LadspaEffect/calf/src/calf/modules.h
index fb9ba7790..8cde47f62 100644
--- a/plugins/LadspaEffect/calf/src/calf/modules.h
+++ b/plugins/LadspaEffect/calf/src/calf/modules.h
@@ -263,6 +263,7 @@ class mono_audio_module:
     }
 public:
     mono_audio_module();
+	~mono_audio_module();
     void params_changed();
     void activate();
     void set_sample_rate(uint32_t sr);
@@ -291,6 +292,7 @@ class stereo_audio_module:
     }
 public:
     stereo_audio_module();
+	~stereo_audio_module();
     void params_changed();
     void activate();
     void set_sample_rate(uint32_t sr);
diff --git a/plugins/LadspaEffect/calf/src/calf/modules_limit.h b/plugins/LadspaEffect/calf/src/calf/modules_limit.h
index d5d4b9a52..850aff80d 100644
--- a/plugins/LadspaEffect/calf/src/calf/modules_limit.h
+++ b/plugins/LadspaEffect/calf/src/calf/modules_limit.h
@@ -84,6 +84,7 @@ public:
     uint32_t srate;
     bool is_active;
     multibandlimiter_audio_module();
+	~multibandlimiter_audio_module();
     void activate();
     void deactivate();
     void params_changed();
diff --git a/plugins/LadspaEffect/calf/src/modules.cpp b/plugins/LadspaEffect/calf/src/modules.cpp
index ba06f0201..98b4b8df3 100644
--- a/plugins/LadspaEffect/calf/src/modules.cpp
+++ b/plugins/LadspaEffect/calf/src/modules.cpp
@@ -460,6 +460,14 @@ stereo_audio_module::stereo_audio_module() {
     meter_outR = 0.f;
 }
 
+stereo_audio_module::~stereo_audio_module()
+{
+	if( buffer != NULL )
+	{
+		free(buffer);
+	}
+}
+
 void stereo_audio_module::activate() {
     active = true;
 }
@@ -686,6 +694,14 @@ mono_audio_module::mono_audio_module() {
     meter_outR = 0.f;
 }
 
+mono_audio_module::~mono_audio_module()
+{
+	if( buffer != NULL )
+	{
+		free(buffer);
+	}
+}
+
 void mono_audio_module::activate() {
     active = true;
 }
diff --git a/plugins/LadspaEffect/calf/src/modules_limit.cpp b/plugins/LadspaEffect/calf/src/modules_limit.cpp
index f7fb6fc80..3930078bb 100644
--- a/plugins/LadspaEffect/calf/src/modules_limit.cpp
+++ b/plugins/LadspaEffect/calf/src/modules_limit.cpp
@@ -252,6 +252,14 @@ multibandlimiter_audio_module::multibandlimiter_audio_module()
     asc_old = true;
 }
 
+multibandlimiter_audio_module::~multibandlimiter_audio_module()
+{
+	if( buffer != NULL)
+	{
+		free(buffer);
+	}
+}
+
 void multibandlimiter_audio_module::activate()
 {
     is_active = true;
diff --git a/plugins/LadspaEffect/calf/src/plugin.cpp b/plugins/LadspaEffect/calf/src/plugin.cpp
index 7b651de88..0cc02a885 100644
--- a/plugins/LadspaEffect/calf/src/plugin.cpp
+++ b/plugins/LadspaEffect/calf/src/plugin.cpp
@@ -54,6 +54,11 @@ ladspa_instance::ladspa_instance(audio_module_iface *_module, ladspa_plugin_meta
     module->post_instantiate();
 }
 
+ladspa_instance::~ladspa_instance()
+{
+	delete module;
+}
+
 float ladspa_instance::get_param_value(int param_no)
 {
     // XXXKF hack
diff --git a/plugins/LadspaEffect/swh/dj_eq_1901.c b/plugins/LadspaEffect/swh/dj_eq_1901.c
index a4baa9602..65205c123 100644
--- a/plugins/LadspaEffect/swh/dj_eq_1901.c
+++ b/plugins/LadspaEffect/swh/dj_eq_1901.c
@@ -116,6 +116,8 @@ static void activateDj_eq_mono(LADSPA_Handle instance) {
 }
 
 static void cleanupDj_eq_mono(LADSPA_Handle instance) {
+	Dj_eq_mono *plugin_data = (Dj_eq_mono *)instance;
+	free(plugin_data->filters);
 	free(instance);
 }
 
@@ -283,6 +285,8 @@ static void activateDj_eq(LADSPA_Handle instance) {
 }
 
 static void cleanupDj_eq(LADSPA_Handle instance) {
+	Dj_eq *plugin_data = (Dj_eq *)instance;
+	free(plugin_data->filters);
 	free(instance);
 }
 
diff --git a/plugins/LadspaEffect/swh/fast_lookahead_limiter_1913.c b/plugins/LadspaEffect/swh/fast_lookahead_limiter_1913.c
index 8589caf3a..eecd72e8e 100644
--- a/plugins/LadspaEffect/swh/fast_lookahead_limiter_1913.c
+++ b/plugins/LadspaEffect/swh/fast_lookahead_limiter_1913.c
@@ -137,6 +137,7 @@ static void cleanupFastLookaheadLimiter(LADSPA_Handle instance) {
 #line 188 "fast_lookahead_limiter_1913.xml"
 	FastLookaheadLimiter *plugin_data = (FastLookaheadLimiter *)instance;
 	free(plugin_data->buffer);
+	free(plugin_data->chunks);
 	free(instance);
 }
 
diff --git a/plugins/LadspaEffect/swh/imp_1199.c b/plugins/LadspaEffect/swh/imp_1199.c
index a5c7d3876..d172a927d 100644
--- a/plugins/LadspaEffect/swh/imp_1199.c
+++ b/plugins/LadspaEffect/swh/imp_1199.c
@@ -202,6 +202,11 @@ static void cleanupImp(LADSPA_Handle instance) {
 	local_free(plugin_data->op);
 	local_free(plugin_data->overlap);
 	local_free(plugin_data->opc);
+	unsigned int i;
+	for (i=0; i<IMPULSES; i++) {
+	  local_free(plugin_data->impulse_freq[i]);
+	}
+	local_free(plugin_data->impulse_freq);
 	free(instance);
 }
 
diff --git a/plugins/LadspaEffect/swh/vynil_1905.c b/plugins/LadspaEffect/swh/vynil_1905.c
index 187aa0f8f..c6aa448b0 100644
--- a/plugins/LadspaEffect/swh/vynil_1905.c
+++ b/plugins/LadspaEffect/swh/vynil_1905.c
@@ -163,6 +163,7 @@ static void cleanupVynil(LADSPA_Handle instance) {
 	free(plugin_data->buffer_m);
 	free(plugin_data->buffer_s);
 	free(plugin_data->click_buffer);
+	free(plugin_data->highp);
 	free(plugin_data->lowp_m);
 	free(plugin_data->lowp_s);
 	free(plugin_data->noise_filt);
diff --git a/plugins/LadspaEffect/tap/tap_eq.c b/plugins/LadspaEffect/tap/tap_eq.c
index daf9463a1..4cc0eb911 100644
--- a/plugins/LadspaEffect/tap/tap_eq.c
+++ b/plugins/LadspaEffect/tap/tap_eq.c
@@ -145,7 +145,8 @@ activate_eq(LADSPA_Handle instance) {
 static
 void
 cleanup_eq(LADSPA_Handle instance) {
-
+	eq *plugin_data = (eq *)instance;
+	free(plugin_data->filters);
 	free(instance);
 }
 
diff --git a/plugins/LadspaEffect/tap/tap_eqbw.c b/plugins/LadspaEffect/tap/tap_eqbw.c
index fd9d15d46..3d6b39f26 100644
--- a/plugins/LadspaEffect/tap/tap_eqbw.c
+++ b/plugins/LadspaEffect/tap/tap_eqbw.c
@@ -167,7 +167,8 @@ activate_eq(LADSPA_Handle instance) {
 static
 void
 cleanup_eq(LADSPA_Handle instance) {
-
+	eq *plugin_data = (eq *)instance;
+	free(plugin_data->filters);
 	free(instance);
 }