Jitter is irregularity of pitch from natural voice. It includes lots of information to provide useful information about human voice. We use statistical signal processing and machine learning approaches to accomplish the goal.

Research area to investigate methods to classify human voice into normal and pathological categories using convolutional neural networks.

Development and application of educational ways to improve teaching engineering students in the class and laboratories. Goal is to find effective and innovative ways of engineering education on the ground of Korean educatinal environment.