The medial olivo cochlear efferent tract is a part of the efferent auditory system that is responsible for improving speech perception in noisy environments. Its activity can be measured by the suppression of otoacoustic emissions upon stimulation by contra lateral noise. AIM: Here we investigated the effect of suppressing transient otoacoustic emissions on efferent auditory system functionality among young adults. MATERIALS AND METHODS: We recorded transient otoacoustic emissions upon stimulation with a contra lateral 60-dBSPL white noise, among 20 normal-hearing subjects, with no hearing complaints. RESULTS: Data analysis revealed higher otoacoustic emissions at bands 1.4 kHz, 2.8 kHz, and 2 kHz and a greater magnitude of suppression at bands 1 kHz and 1.4 kHz in both ears. Suppression was more common at 2 kHz, 2.8 kHz, and 4 kHz (65-80%) as compared to 1 kHz and 1.4 kHz (50-65%) in both ears. There were no significant differences between right and left ears in the magnitude of suppression, though suppression was more common in the left ear. CONCLUSION: The magnitude of suppression was greater for bands of low frequencies, which suggests a distinct function of the efferent auditory system among young adults with no hearing complaints.