diff --git a/cpp/OscillatorNode/OscillatorNodeWrapper.h b/cpp/OscillatorNode/OscillatorNodeWrapper.h
index fefc2642..cf37e9d0 100644
--- a/cpp/OscillatorNode/OscillatorNodeWrapper.h
+++ b/cpp/OscillatorNode/OscillatorNodeWrapper.h
@@ -17,10 +17,6 @@ namespace audiocontext {
     class OscillatorNodeWrapper: public AudioNodeWrapper {
 #ifdef ANDROID
         std::shared_ptr<OscillatorNode> oscillator_;
-#else
-        std::shared_ptr<IOSOscillator> oscillator_;
-#endif
-
     public:
         explicit OscillatorNodeWrapper(const std::shared_ptr<OscillatorNode> &oscillator) : AudioNodeWrapper(
                 oscillator), oscillator_(oscillator) {}
diff --git a/example/src/App.tsx b/example/src/App.tsx
index 9aac829d..cd16e67c 100644
--- a/example/src/App.tsx
+++ b/example/src/App.tsx
@@ -32,7 +32,8 @@ const App: React.FC = () => {
 
     if (Platform.OS === 'android') {
       const destination = audioContextRef.current.destination;
-      oscillatorRef.current.connect(destination!);
+      oscillatorRef.current.connect(gainRef.current);
+      gainRef.current.connect(destination!);
     }
   };
 
@@ -90,7 +91,7 @@ const App: React.FC = () => {
         />
       </View>
       <View style={styles.container}>
-        <Text>Gain: {gain.toFixed(1)}</Text>
+        <Text>Gain: {gain.toFixed(2)}</Text>
         <Slider
           containerStyle={styles.slider}
           value={gain}
diff --git a/src/AudioContext.ts b/src/AudioContext.ts
deleted file mode 100644
index 7f36e857..00000000
--- a/src/AudioContext.ts
+++ /dev/null
@@ -1,24 +0,0 @@
-import { NativeModules, Platform } from 'react-native';
-
-import type {
-  AudioDestinationNode,
-  BaseAudioContext,
-  Oscillator,
-} from './types';
-
-export class AudioContext implements BaseAudioContext {
-  destination: AudioDestinationNode | null;
-
-  constructor() {
-    this.destination = null;
-
-    if (Platform.OS === 'android') {
-      NativeModules.AudioContextModule.installAudioContext();
-      this.destination = global.__AudioContext.destination;
-    }
-  }
-
-  createOscillator(): Oscillator {
-    return global.__AudioContext.createOscillator();
-  }
-}
diff --git a/src/modules/global.d.ts b/src/modules/global.d.ts
index b7dc178b..85cdb3e6 100644
--- a/src/modules/global.d.ts
+++ b/src/modules/global.d.ts
@@ -2,6 +2,7 @@ import type { Oscillator } from '../types';
 
 type AudioContext = {
   createOscillator: () => Oscillator;
+  createGain: () => Gain;
   destination: AudioDestinationNode | null;
 };