Sound Field Reproduction (image) The Korea Advanced Institute of Science and Technology (KAIST) Share Print E-Mail Caption This shows a sound field reproduced from a sound ball. The left is a target sound source, and the right is a virtual sound source (sound ball) created by loudspeakers. Credit KAIST Acoustics & Vibrations Lab Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.