Influences of the duration of stimulus sounds on stimulated oto-acoustic emission (OAE) were studied in 9 normal hearing ears. Tone bursts with two kinds of duration (3ms and 6ms) at 5 frequencies between 1.0kHz and 4.0kHz were used as the stimulus sound. It was found that the pseudothreshold, the latency and the maximum stimulus level differentiating OAE from damped oscillation of stimulus sound were all influenced by the duration of tone burst especially at higt stimulus frequencies.
