Acoustic Analysis of Speech for Screening for Suicide Risk: Machine Learning Classifiers for Between- and Within-Person Evaluation of Suicidality

Sooyeon Min   ^{1, 2 *} , MSc, MD ;   Daun Shin   ^{3 *} , MD, PhD ;   Sang Jin Rhee   ¹ , MD, PhD ;   C Hyung Keun Park   ⁴ , MD, PhD ;   Jeong Hun Yang   ¹ , MD ;   Yoojin Song   ¹ , MD ;   Min Ji Kim   ² , MD, PhD ;   Kyungdo Kim   ⁵ , MSc ;   Won Ik Cho   ⁶ , PhD ;   Oh Chul Kwon   ⁷ , MD ;   Yong Min Ahn   ^{1, 2} , MD, PhD ;   Hyunju Lee   ¹ , MD, PhD

¹ Department of Neuropsychiatry, Seoul National University Hospital, Seoul, Republic of Korea

² Department of Psychiatry, Seoul National University College of Medicine, Seoul, Republic of Korea

³ Department of Psychiatry, Korea University College of Medicine, Seoul, Republic of Korea

⁴ Department of Psychiatry, Asan Medical Center, Seoul, Republic of Korea

⁵ Department of Biomedical Engineering, Duke University, Durham, NC, United States

⁶ Department of Electrical and Computer Engineering, Seoul National University, Seoul, Republic of Korea

⁷ MDB Incorporated, Seoul, Republic of Korea

*these authors contributed equally