Added missing port for invoking socket_comm()

        /* sanity check */

        if ( arg.outputConfig != IVAS_AUDIO_CONFIG_BINAURAL && arg.outputConfig != IVAS_AUDIO_CONFIG_BINAURAL_ROOM_IR && arg.outputConfig != IVAS_AUDIO_CONFIG_BINAURAL_ROOM_REVERB && arg.outputConfig != IVAS_AUDIO_CONFIG_BINAURAL_SPLIT_CODED && arg.outputConfig != IVAS_AUDIO_CONFIG_BINAURAL_SPLIT_PCM )

        {

#ifdef SOCKET_INTERFACE_FOR_POSE_AND_AUDIO

            fprintf( stderr, "\nError: Head-rotation cannot be used in this output configuration.\n\n" );

#else

            fprintf( stderr, "\nError: Head-rotation file file cannot be used in this output configuration.\n\n" );

#endif

            goto cleanup;

        }

#ifdef SOCKET_INTERFACE_FOR_POSE_AND_AUDIO

        if ( arg.enableHeadrotTrajSocket )

        {

            if ( ( error = SocketComm_start( &hSocket, arg.socketPort ) ) != IVAS_ERR_OK )

            {

                fprintf( stderr, "\nError: Can't start socket communication \n\n" );

                goto cleanup;

            }

        }

        else

        {

            if ( ( error = RotationFileReader_open( arg.headrotTrajFileName, &headRotReader ) ) != IVAS_ERR_OK )

            {

                fprintf( stderr, "\nError: Can't open head-rotation file %s \n\n", arg.headrotTrajFileName );

                goto cleanup;

            }

        }

#else

        if ( ( error = RotationFileReader_open( arg.headrotTrajFileName, &headRotReader ) ) != IVAS_ERR_OK )

        {

            fprintf( stderr, "\nError: Can't open head-rotation file %s \n\n", arg.headrotTrajFileName );

            goto cleanup;

        }

#endif

    }

    /*------------------------------------------------------------------------------------------*