diff --git a/src/sfizz/Effects.cpp b/src/sfizz/Effects.cpp
index 9ae699fb..c31f245e 100644
--- a/src/sfizz/Effects.cpp
+++ b/src/sfizz/Effects.cpp
@@ -91,10 +91,10 @@ void EffectBus::addToInputs(const float* const addInput[], float addGain, unsign
     }
 }
 
-void EffectBus::init(double sampleRate)
+void EffectBus::setSampleRate(double sampleRate)
 {
     for (const auto& effectPtr : _effects)
-        effectPtr->init(sampleRate);
+        effectPtr->setSampleRate(sampleRate);
 }
 
 void EffectBus::clear()
@@ -130,6 +130,10 @@ void EffectBus::mixOutputsTo(float* const mainOutput[], float* const mixOutput[]
     }
 }
 
+size_t EffectBus::numEffects() const noexcept
+{
+    return _effects.size();
+}
 void EffectBus::setSamplesPerBlock(int samplesPerBlock) noexcept
 {
     _inputs.resize(samplesPerBlock);
diff --git a/src/sfizz/Effects.h b/src/sfizz/Effects.h
index 17ded9de..0ea8d195 100644
--- a/src/sfizz/Effects.h
+++ b/src/sfizz/Effects.h
@@ -30,7 +30,7 @@ public:
     /**
        @brief Initializes with the given sample rate.
      */
-    virtual void init(double sampleRate) = 0;
+    virtual void setSampleRate(double sampleRate) = 0;
 
     /**
        @brief Reset the state to initial.
@@ -133,7 +133,7 @@ public:
     /**
        @brief Initializes all effects in the bus with the given sample rate.
      */
-    void init(double sampleRate);
+    void setSampleRate(double sampleRate);
 
     /**
        @brief Resets the state of all effects in the bus.
diff --git a/src/sfizz/Synth.cpp b/src/sfizz/Synth.cpp
index eeedafe1..efefd1e7 100644
--- a/src/sfizz/Synth.cpp
+++ b/src/sfizz/Synth.cpp
@@ -126,7 +126,7 @@ void sfz::Synth::clear()
     effectBuses.emplace_back(new EffectBus);
     effectBuses[0]->setGainToMain(1.0);
     effectBuses[0]->setSamplesPerBlock(samplesPerBlock);
-    effectBuses[0]->init(sampleRate);
+    effectBuses[0]->setSampleRate(sampleRate);
     resources.filePool.clear();
     resources.logger.clear();
     numGroups = 0;
@@ -201,10 +201,13 @@ void sfz::Synth::handleEffectOpcodes(const std::vector<Opcode>& members)
     auto getOrCreateBus = [this](unsigned index) -> EffectBus& {
         if (index + 1 > effectBuses.size())
             effectBuses.resize(index + 1);
-        EffectBusPtr& slot = effectBuses[index];
-        if (!slot)
-            slot.reset(new EffectBus);
-        return *slot;
+        EffectBusPtr& bus = effectBuses[index];
+        if (!bus) {
+            bus.reset(new EffectBus);
+            bus->setSampleRate(sampleRate);
+            bus->setSamplesPerBlock(samplesPerBlock);
+        }
+        return *bus;
     };
 
     for (const Opcode& opcode : members) {
@@ -255,7 +258,7 @@ void sfz::Synth::handleEffectOpcodes(const std::vector<Opcode>& members)
     // create the effect and add it
     EffectBus& bus = getOrCreateBus(busIndex);
     auto fx = effectFactory.makeEffect(members);
-    fx->init(sampleRate);
+    fx->setSampleRate(sampleRate);
     bus.addEffect(std::move(fx));
 }
 
@@ -482,7 +485,7 @@ void sfz::Synth::setSampleRate(float sampleRate) noexcept
 
     for (size_t i = 0, n = effectBuses.size(); i < n; ++i) {
         if (EffectBus* bus = effectBuses[i].get())
-            bus->init(sampleRate);
+            bus->setSampleRate(sampleRate);
     }
 }
 
diff --git a/src/sfizz/effects/Lofi.cpp b/src/sfizz/effects/Lofi.cpp
index 7c1c95d4..fdd511d1 100644
--- a/src/sfizz/effects/Lofi.cpp
+++ b/src/sfizz/effects/Lofi.cpp
@@ -45,7 +45,7 @@
 namespace sfz {
 namespace fx {
 
-    void Lofi::init(double sampleRate)
+    void Lofi::setSampleRate(double sampleRate)
     {
         for (unsigned c = 0; c < EffectChannels; ++c) {
             _bitred[c].init(sampleRate);
diff --git a/src/sfizz/effects/Lofi.h b/src/sfizz/effects/Lofi.h
index 65b5e54e..1c745154 100644
--- a/src/sfizz/effects/Lofi.h
+++ b/src/sfizz/effects/Lofi.h
@@ -19,7 +19,7 @@ namespace fx {
         /**
          * @brief Initializes with the given sample rate.
          */
-        void init(double sampleRate) override;
+        void setSampleRate(double sampleRate) override;
 
         /**
          * @brief Reset the state to initial.
diff --git a/src/sfizz/effects/Nothing.cpp b/src/sfizz/effects/Nothing.cpp
index 527ce5ae..47a3f8b0 100644
--- a/src/sfizz/effects/Nothing.cpp
+++ b/src/sfizz/effects/Nothing.cpp
@@ -10,7 +10,7 @@
 namespace sfz {
 namespace fx {
 
-    void Nothing::init(double sampleRate)
+    void Nothing::setSampleRate(double sampleRate)
     {
         (void)sampleRate;
     }
diff --git a/src/sfizz/effects/Nothing.h b/src/sfizz/effects/Nothing.h
index 239697d8..12326897 100644
--- a/src/sfizz/effects/Nothing.h
+++ b/src/sfizz/effects/Nothing.h
@@ -18,7 +18,7 @@ namespace fx {
         /**
          * @brief Initializes with the given sample rate.
          */
-        void init(double sampleRate) override;
+        void setSampleRate(double sampleRate) override;
 
         /**
          * @brief Reset the state to initial.