This inquiry explored whether diverse types of corrective feedback (CF) in second language speech perception training have divergent effects on second language speech production. One hundred Korean learners of English were assigned to five diverse groups and partook in eight computer-assisted perception training sessions centering on English vowels. While no CF was supplied to the control group, participants in the four treatment groups received one of three types of auditory CF or a visual type of CF. A pretest, an immediate posttest, and a delayed posttest each consisted of a production measurement at a controlled-speech level. Results disclosed that the degree to which the participants’ production precision benefited from the perception training relied on CF type. In addition, by assuming the perception accuracy data by Lee and Lyster (2016b), this inquiry found that amelioration in perception precision was a significant predictor of amelioration in production precision.