KyungA Lee is a PhD candidate in the Department of English Language Education at Seoul National University and works as a public elementary school teacher in South Korea. Her research interests focus on L2 speech perception and production, computer-assisted pronunciation training, and pronunciation teaching in elementary schools.

Hyunkee Ahn is a Full Professor in the Department of English Language Education at Seoul National University, South Korea. He earned his Ph.D. in Linguistics with a specialization in Phonetics from the University of Texas at Austin in 1999. His current research focuses on L2 phonetics, listening comprehension, and pronunciation teaching and learning.