The effectiveness of Chinese instrumental music embedded with binaural beats in relieving anxiety related to academic stress among undergraduates: A randomized controlled trial

The study aimed to determine the effectiveness of binaural beat (BB) Chinese music, with dynamic theta- to delta-frequency progression, in relieving anxiety among Singapore undergraduates. It also examined whether the binaural effects differ between students with high and normal trait anxiety. This was a randomized controlled trial with 151 undergraduates assigned to listen to a single 30 min episode of BB Chinese music, Chinese music, or audiobook. The Perceived Stress Scale (PSS) measured stress, while the state subscale of the State-Trait Anxiety Inventory (STAI-S) and root mean square of successive R–R interval differences (RMSSD) were outcome measures for anxiety. Results indicated that mean STAI-S and PSS reductions were not statistically significant between groups. No significant difference in mean change of RMSSD was detected when the BB Chinese music group was compared with the Chinese music or audiobook groups. However, students with high baseline trait anxiety experienced a greater, marginally significant reduction in STAI-S scores and an increase in RMSSD than those with normal trait anxiety after BB exposure. BB Chinese instrumental music may not have anxiolytic effects on healthy undergraduate populations, as evidence for an anxiolytic effect was observed only among students with high baseline trait anxiety, warranting further research on this population.