The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

The focus of this research is on developing a more immersive combat training system aimed at cultivating a battle ready force. Scientific combat training currently enables realistic exercises for units ranging from small teams to the highest echelons, designed to closely replicate actual battlefield environments. However, limitations exist in providing bullet flight sounds and explosion sounds, such as those from grenade launchers, during engagements. These restrictions create discrepancies between real combat and training scenarios, potentially reducing immersion. To address this, the study proposes a solution where bullet flight sounds (shock waves) and explosion sounds are delivered based on their generation points and the distance from the listener. This allows soldiers to experience the psychological impact of battlefield noise, simulating the fear and intensity of actual combat, thereby improving training engagement. The proposed system calculates the distance from the bullet trajectory in the case of direct fire weapons to provide shock waves corresponding to the appropriate sound pressure. For indirect fire weapons, such as grenade launchers, it computes the distance from the point of impact to generate explosion sounds matching the relevant sound pressure.