diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 
diff --git a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
index c5f565c..6682cfe 100644
--- a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
+++ b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
@@ -79,7 +79,12 @@
     }
 
     fun applyEffectAttributes(effect: Effect) {
-        applyEffectAttributes(id, effect.type.ordinal, effect.parameters[0].value)
+        applyEffectAttributes(
+            id,
+            effect.type.ordinal,
+            effect.influence.value,
+            effect.parameters[0].value
+        )
     }
 
     private external fun createInstrument(): Int
@@ -96,5 +101,10 @@
         release: Float
     )
 
-    private external fun applyEffectAttributes(id: Int, effectNumber: Int, parameter1: Float)
+    private external fun applyEffectAttributes(
+        id: Int,
+        effectNumber: Int,
+        influence: Float,
+        parameter1: Float
+    )
 }
\ No newline at end of file

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 
diff --git a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
index c5f565c..6682cfe 100644
--- a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
+++ b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
@@ -79,7 +79,12 @@
     }
 
     fun applyEffectAttributes(effect: Effect) {
-        applyEffectAttributes(id, effect.type.ordinal, effect.parameters[0].value)
+        applyEffectAttributes(
+            id,
+            effect.type.ordinal,
+            effect.influence.value,
+            effect.parameters[0].value
+        )
     }
 
     private external fun createInstrument(): Int
@@ -96,5 +101,10 @@
         release: Float
     )
 
-    private external fun applyEffectAttributes(id: Int, effectNumber: Int, parameter1: Float)
+    private external fun applyEffectAttributes(
+        id: Int,
+        effectNumber: Int,
+        influence: Float,
+        parameter1: Float
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
index ea81afb..dc20f7c 100644
--- a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
+++ b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
@@ -16,4 +16,11 @@
     val parameters = Array(type.parameterDescriptions.size) {
         EffectParameter(type.parameterDescriptions[it], instrument)
     }
+    val influence = EffectParameter(influenceDescription, instrument)
+
+    companion object {
+        val influenceDescription = EffectParameterDescription(0.0f, 1.0f, 0.0f) {
+            "influence: ${it.percentageValue}%"
+        }
+    }
 }
\ No newline at end of file

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 
diff --git a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
index c5f565c..6682cfe 100644
--- a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
+++ b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
@@ -79,7 +79,12 @@
     }
 
     fun applyEffectAttributes(effect: Effect) {
-        applyEffectAttributes(id, effect.type.ordinal, effect.parameters[0].value)
+        applyEffectAttributes(
+            id,
+            effect.type.ordinal,
+            effect.influence.value,
+            effect.parameters[0].value
+        )
     }
 
     private external fun createInstrument(): Int
@@ -96,5 +101,10 @@
         release: Float
     )
 
-    private external fun applyEffectAttributes(id: Int, effectNumber: Int, parameter1: Float)
+    private external fun applyEffectAttributes(
+        id: Int,
+        effectNumber: Int,
+        influence: Float,
+        parameter1: Float
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
index ea81afb..dc20f7c 100644
--- a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
+++ b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
@@ -16,4 +16,11 @@
     val parameters = Array(type.parameterDescriptions.size) {
         EffectParameter(type.parameterDescriptions[it], instrument)
     }
+    val influence = EffectParameter(influenceDescription, instrument)
+
+    companion object {
+        val influenceDescription = EffectParameterDescription(0.0f, 1.0f, 0.0f) {
+            "influence: ${it.percentageValue}%"
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
index bedabeb..1714b49 100644
--- a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
+++ b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
@@ -46,7 +46,7 @@
             }
         })
         binding.waveformSelection.smartSetup(Waveform.VALUES, instrument::waveform)
-        binding.volumeSeek.setup(0, 100, 30) {
+        binding.volumeSeek.setup(0, 100, (instrument.volume * 100f).toInt()) {
             binding.volumeText.text = "volume: $it%"
             instrument.volume = it.toFloat() / 100f
         }

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 
diff --git a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
index c5f565c..6682cfe 100644
--- a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
+++ b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
@@ -79,7 +79,12 @@
     }
 
     fun applyEffectAttributes(effect: Effect) {
-        applyEffectAttributes(id, effect.type.ordinal, effect.parameters[0].value)
+        applyEffectAttributes(
+            id,
+            effect.type.ordinal,
+            effect.influence.value,
+            effect.parameters[0].value
+        )
     }
 
     private external fun createInstrument(): Int
@@ -96,5 +101,10 @@
         release: Float
     )
 
-    private external fun applyEffectAttributes(id: Int, effectNumber: Int, parameter1: Float)
+    private external fun applyEffectAttributes(
+        id: Int,
+        effectNumber: Int,
+        influence: Float,
+        parameter1: Float
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
index ea81afb..dc20f7c 100644
--- a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
+++ b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
@@ -16,4 +16,11 @@
     val parameters = Array(type.parameterDescriptions.size) {
         EffectParameter(type.parameterDescriptions[it], instrument)
     }
+    val influence = EffectParameter(influenceDescription, instrument)
+
+    companion object {
+        val influenceDescription = EffectParameterDescription(0.0f, 1.0f, 0.0f) {
+            "influence: ${it.percentageValue}%"
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
index bedabeb..1714b49 100644
--- a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
+++ b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
@@ -46,7 +46,7 @@
             }
         })
         binding.waveformSelection.smartSetup(Waveform.VALUES, instrument::waveform)
-        binding.volumeSeek.setup(0, 100, 30) {
+        binding.volumeSeek.setup(0, 100, (instrument.volume * 100f).toInt()) {
             binding.volumeText.text = "volume: $it%"
             instrument.volume = it.toFloat() / 100f
         }
diff --git a/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt b/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
index dc9edfa..1577609 100644
--- a/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
+++ b/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
@@ -28,6 +28,9 @@
     ): View? {
         binding = FragmentEffectBinding.inflate(inflater)
         binding.effectName.text = effect.type.toString()
+        binding.influenceSeekBar.smartSetup(0, 100, effect.influence::percentageValue) {
+            binding.influenceText.text = effect.influence.description.text(effect.influence)
+        }
         binding.parameter1SeekBar.smartSetup(0, 100, effect.parameters[0]::percentageValue) {
             binding.parameter1Text.text =
                 effect.parameters[0].description.text(effect.parameters[0])

diff --git a/app/src/main/cpp/Instrument.cpp b/app/src/main/cpp/Instrument.cpp
index 985e93e..09d83d5 100644
--- a/app/src/main/cpp/Instrument.cpp
+++ b/app/src/main/cpp/Instrument.cpp
@@ -18,6 +18,12 @@
     }
 }
 
+void multiply(float *target, float value, uint32_t size) {
+    for (uint32_t i = 0; i < size; i++) {
+        target[i] *= value;
+    }
+}
+
 void add(float *target, float *other, uint32_t size) {
     for (uint32_t i = 0; i < size; i++) {
         target[i] += other[i];
@@ -30,7 +36,10 @@
     multiply(waveform, modulation, count);
     lowPass->input = waveform;
     float *filtered = lowPass->render(count);
-    add(buffer, filtered, count);
+    multiply(filtered, lowPass->influence, count);
+    multiply(waveform, 1 - lowPass->influence, count);
+    add(waveform, filtered, count);
+    add(buffer, waveform, count);
 }
 
 void Instrument::startNote(float frequency) {
diff --git a/app/src/main/cpp/JavaFunctions.cpp b/app/src/main/cpp/JavaFunctions.cpp
index cb732f2..b39abb1 100644
--- a/app/src/main/cpp/JavaFunctions.cpp
+++ b/app/src/main/cpp/JavaFunctions.cpp
@@ -98,6 +98,7 @@
 Java_com_lukas_music_instruments_InternalInstrument_applyEffectAttributes(JNIEnv *env, jobject thiz,
                                                                           jint id,
                                                                           jint effect_number,
+                                                                          jfloat influence,
                                                                           jfloat parameter1) {
     Instrument *instrument = getInstrument(id);
     Effect *effect;
@@ -106,6 +107,7 @@
             effect = instrument->lowPass;
             break;
     }
+    effect->influence = influence;
     effect->parameter1 = parameter1;
 }
 }
\ No newline at end of file
diff --git a/app/src/main/cpp/effects/Effect.h b/app/src/main/cpp/effects/Effect.h
index d4777f9..80ba84c 100644
--- a/app/src/main/cpp/effects/Effect.h
+++ b/app/src/main/cpp/effects/Effect.h
@@ -7,7 +7,7 @@
 
 class Effect : public Processable {
 public:
-    float parameter1, frequency;
+    float parameter1, frequency, influence;
     float *input;
     AudioHost *host;
 
diff --git a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
index c5f565c..6682cfe 100644
--- a/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
+++ b/app/src/main/java/com/lukas/music/instruments/InternalInstrument.kt
@@ -79,7 +79,12 @@
     }
 
     fun applyEffectAttributes(effect: Effect) {
-        applyEffectAttributes(id, effect.type.ordinal, effect.parameters[0].value)
+        applyEffectAttributes(
+            id,
+            effect.type.ordinal,
+            effect.influence.value,
+            effect.parameters[0].value
+        )
     }
 
     private external fun createInstrument(): Int
@@ -96,5 +101,10 @@
         release: Float
     )
 
-    private external fun applyEffectAttributes(id: Int, effectNumber: Int, parameter1: Float)
+    private external fun applyEffectAttributes(
+        id: Int,
+        effectNumber: Int,
+        influence: Float,
+        parameter1: Float
+    )
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
index ea81afb..dc20f7c 100644
--- a/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
+++ b/app/src/main/java/com/lukas/music/instruments/effect/Effect.kt
@@ -16,4 +16,11 @@
     val parameters = Array(type.parameterDescriptions.size) {
         EffectParameter(type.parameterDescriptions[it], instrument)
     }
+    val influence = EffectParameter(influenceDescription, instrument)
+
+    companion object {
+        val influenceDescription = EffectParameterDescription(0.0f, 1.0f, 0.0f) {
+            "influence: ${it.percentageValue}%"
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
index bedabeb..1714b49 100644
--- a/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
+++ b/app/src/main/java/com/lukas/music/ui/fragments/EditInstrumentFragment.kt
@@ -46,7 +46,7 @@
             }
         })
         binding.waveformSelection.smartSetup(Waveform.VALUES, instrument::waveform)
-        binding.volumeSeek.setup(0, 100, 30) {
+        binding.volumeSeek.setup(0, 100, (instrument.volume * 100f).toInt()) {
             binding.volumeText.text = "volume: $it%"
             instrument.volume = it.toFloat() / 100f
         }
diff --git a/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt b/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
index dc9edfa..1577609 100644
--- a/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
+++ b/app/src/main/java/com/lukas/music/ui/fragments/EffectFragment.kt
@@ -28,6 +28,9 @@
     ): View? {
         binding = FragmentEffectBinding.inflate(inflater)
         binding.effectName.text = effect.type.toString()
+        binding.influenceSeekBar.smartSetup(0, 100, effect.influence::percentageValue) {
+            binding.influenceText.text = effect.influence.description.text(effect.influence)
+        }
         binding.parameter1SeekBar.smartSetup(0, 100, effect.parameters[0]::percentageValue) {
             binding.parameter1Text.text =
                 effect.parameters[0].description.text(effect.parameters[0])
diff --git a/app/src/main/res/layout/fragment_effect.xml b/app/src/main/res/layout/fragment_effect.xml
index 7e88115..d5e0681 100644
--- a/app/src/main/res/layout/fragment_effect.xml
+++ b/app/src/main/res/layout/fragment_effect.xml
@@ -31,6 +31,27 @@
             android:layout_width="match_parent"
             android:layout_height="match_parent">
 
+            <SeekBar
+                android:id="@+id/influenceSeekBar"
+                android:layout_width="0dp"
+                android:layout_height="40dp"
+                android:layout_marginTop="16dp"
+                android:layout_marginEnd="16dp"
+                app:layout_constraintEnd_toEndOf="parent"
+                app:layout_constraintStart_toStartOf="@+id/effectName"
+                app:layout_constraintTop_toBottomOf="@+id/effectName" />
+
+            <TextView
+                android:id="@+id/influenceText"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_marginStart="16dp"
+                android:text="@string/placeholder"
+                app:layout_constraintBottom_toBottomOf="@+id/influenceSeekBar"
+                app:layout_constraintEnd_toEndOf="@+id/parameter1Text"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="@+id/influenceSeekBar" />
+
             <TextView
                 android:id="@+id/effectName"
                 android:layout_width="wrap_content"
@@ -47,14 +68,13 @@
             <SeekBar
                 android:id="@+id/parameter1SeekBar"
                 android:layout_width="0dp"
-                android:layout_height="wrap_content"
+                android:layout_height="40dp"
                 android:layout_marginTop="16dp"
-                android:layout_marginEnd="16dp"
                 android:layout_marginBottom="16dp"
                 app:layout_constraintBottom_toBottomOf="parent"
-                app:layout_constraintEnd_toEndOf="parent"
-                app:layout_constraintStart_toStartOf="@+id/effectName"
-                app:layout_constraintTop_toBottomOf="@+id/effectName" />
+                app:layout_constraintEnd_toEndOf="@+id/influenceSeekBar"
+                app:layout_constraintStart_toStartOf="@+id/influenceSeekBar"
+                app:layout_constraintTop_toBottomOf="@+id/influenceSeekBar" />
 
             <TextView
                 android:id="@+id/parameter1Text"
@@ -65,8 +85,10 @@
                 android:text="@string/placeholder"
                 app:layout_constraintBottom_toBottomOf="@+id/parameter1SeekBar"
                 app:layout_constraintEnd_toStartOf="@+id/parameter1SeekBar"
+                app:layout_constraintHorizontal_bias="1.0"
                 app:layout_constraintStart_toStartOf="parent"
-                app:layout_constraintTop_toTopOf="@+id/parameter1SeekBar" />
+                app:layout_constraintTop_toTopOf="@+id/parameter1SeekBar"
+                app:layout_constraintVertical_bias="0.0" />
         </androidx.constraintlayout.widget.ConstraintLayout>
     </androidx.cardview.widget.CardView>