[Speech in noise test in 7-9 years old school age children with otitis media with effusion in 12 and 13 areas in Tehran, 1378-79]

Method and Material: This study examined the speech in noise test in 60 school age children with otitis media with effusion and 30 school age children with normal hearing in +5, 0 and -5 dB signal to noise ratio. The mean of age was 8.05 in study group and 8.25 in control group. Speech in noise test were performed for study group and control group in quiet an in noise. Speech noise presented ipsilaterally in both groups

Finding: The correlation of mean of SDS in +5, 0 and -5 dB signal to noise ratio between study group and control group, is significant

[Temporary threshold shift by otoacoustic emission in a group of 18-25 years old with normal hearing]

Method and Material: This study was performed on 36 normal-hearing subjects aged 18-25 years for survey of temporary threshold shift [TTS] by transient evoked otoacoustic emissions

Finding: Noise can affect the pure-tone thresholds and [TEOAEs] amplitudes. When cochlea affected by noise, evaluating TEOAE is more suitable than pure-tone audiometry. Because of this test, is objective an unaffected by attention and alertness and can be evaluated in difficult to test subject and also have high carefulness and can be performed in a quiet, but not sound-proof room