fix: fixed issue on ios

audio engine needs to be restarted upon changing anything like attaching
detaching nodes

Author: poneciak57

packages/react-native-audio-api/ios/audioapi/ios/core/NativeAudioPlayer.m

@@ -40,7 +40,8 @@ - (bool)start
   assert(audioEngine != nil);
   self.sourceNodeId = [audioEngine attachSourceNode:self.sourceNode format:self.format];
 
-  return [audioEngine startIfNecessary];
+  // if the engine is already running we need to restart it to make it use newly attached node
+  return [audioEngine restartAudioEngine];
 }
 
 - (void)stop
@@ -50,6 +51,7 @@ - (void)stop
   AudioEngine *audioEngine = [AudioEngine sharedInstance];
   assert(audioEngine != nil);
   [audioEngine detachSourceNodeWithId:self.sourceNodeId];
+  [audioEngine restartAudioEngine];
   [audioEngine stopIfNecessary];
   self.sourceNodeId = nil;
 }

packages/react-native-audio-api/ios/audioapi/ios/core/NativeAudioRecorder.m

@@ -101,14 +101,17 @@ - (void)start
   AudioEngine *audioEngine = [AudioEngine sharedInstance];
   assert(audioEngine != nil);
   [audioEngine attachInputNode:self.sinkNode];
-  [audioEngine startIfNecessary];
+
+  // if the engine is running we need to restart it to make it use newly attached node
+  [audioEngine restartAudioEngine];
 }
 
 - (void)stop
 {
   AudioEngine *audioEngine = [AudioEngine sharedInstance];
   assert(audioEngine != nil);
   [audioEngine detachInputNode];
+  [audioEngine restartAudioEngine];
   [audioEngine stopIfNecessary];
 }