A clinical comparison of Grason Stadler insert earphones and TDH-50P standard earphones.
Recent investigations have reported numerous advantages of insert earphones. However, no data have been reported regarding Grason Stadler (GS) insert earphones. The purpose of this investigation was to compare results obtained using the GS insert earphone to those obtained using a standard earphone on pure-tone thresholds, ipsilateral effective masking levels, and an estimate of interaural attenuation. Twenty-seven normal-hearing listeners participated. Pure-tone thresholds and ipsilateral effective masking levels obtained were not significantly different for the two transducers. However, the GS insert earphones yielded significantly greater interaural attenuation.
Blackwell
K L
KL
Radford University, Department of Communication Sciences and Disorders, Virginia.
Oyler
R F
RF
Seyfried
D N
DN
D000328:Adult; D001301:Audiometry, Pure-Tone / Q000295:instrumentation*; D004423:Ear; D004424:Ear Canal; D005260:Female; D006801:Humans; D008297:Male; D010470:Perceptual Masking