 Bioacoustic properties of speech have shown promise in identifying psychiatric disorders. However, obtaining a sufficient amount of speech data to accurately measure these properties can be challenging. This study examined how the duration of speech affects the reproducibility of certain acoustic features. The authors found that fewer features were reproducible when the speech was reduced in length, particularly in terms of spectral shape, pitch, and formants. Additionally, gender differences were observed in the reproducibility of certain features. Overall, this study highlights the importance of collecting adequate amounts of speech data to ensure accurate measurement of bioacoustic properties. This article was authored by Shekha A. Almagrabi, Dominic Thoulas, Simon Thwaites, and others.