fix crash by closing socket before deleting audio data

interface/src/AudioData.cpp

@@ -39,6 +39,7 @@ AudioData::~AudioData() {
         }
     }
     
-    
     delete[] samplesToQueue;
+    
+    delete audioSocket;
 }

interface/src/UDPSocket.cpp

@@ -51,6 +51,10 @@ UDPSocket::UDPSocket(int listeningPort) {
     printf("Created UDP socket listening on port %d.\n", listeningPort);
 }
 
+UDPSocket::~UDPSocket() {
+    close(handle);
+}
+
 bool UDPSocket::receive(void *receivedData, int *receivedBytes) {
     
     *receivedBytes = recvfrom(handle, receivedData, MAX_BUFFER_LENGTH_BYTES,

interface/src/UDPSocket.h

@@ -17,6 +17,7 @@
 class UDPSocket {    
     public:    
         UDPSocket(int listening_port);
+        ~UDPSocket();
         int send(char *destAddress, int destPort, const void *data, int byteLength);
         bool receive(void *receivedData, int *receivedBytes);
     private: