Professor Jeong-Guon Lee made a keynote speech at RECAV 2017 (Regional Conference on Acoustics and Vibration) held in Bali, Indonesia from November 26th to 28th. The title of the lecture is “Creation of Virtual Source, Field, and Feelings by Using Vibro-acoustic Methods”, which is the core contents of Ind 4.0. It is about realizing sound field and vibration field control related to emotion control technology. The RECAV Society of Korea is a member of the Acoustical Society of the United States (ASA), Korea (ASK), Japan (ASJ) and Singapore (SAS) and the International Association of Acoustical Society (ICA) to celebrate the launch of the recently established Acousto- We actively supported. Professor Lee is an honorary chairman of the Acoustical Society of Korea and currently serves as ICA Vice Chairman. During the conference, the volcano of Agung volcano erupted on the island, it was isolated on the island and had difficulties in returning home.