The impact of formal musical training on speech intelligibility performance: Implications for music pedagogy in high-consequence industries

Abstract

In high-risk industries, responding accurately and promptly to spoken commands is crucial to ensure safety and productivity. When simultaneous sounds occur, it increases the difficulty of responding efficiently and accurately. This study examined responses to spoken commands in an audio-visual multitasking paradigm that simulated a high-consequence working environment. Participants had varying levels of formal music training (FMT): no FMT, 1–3, 3–5, and 5+ years of FMT. We found that FMT groups were similar in accuracy overall and background music decreased accuracy for all groups. The degree of FMT significantly impacted non-response. Additionally, there was an interaction where the no FMT group responded 1.5-fold less frequently in the presence of background music; however, participants with 5+ years of FMT had no decrease. Considering the similar accuracy with less frequent responding, the 5+ years FMT group appears well calibrated to when they were unsure of the answer, suggestive of improved meta-cognition which could be valuable in high-risk industry settings. Future research can examine performance within different types or quality of musical training, and pedagogical approaches can be compared.