(No Title)
収録刊行物
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- Improving telephone handset performance-On the use of ear simulators ITU-T P.57 Type 1 and Type 3.2 for telephonometric measurements-
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Improving telephone handset performance-On the use of ear simulators ITU-T P.57 Type 1 and Type 3.2 for telephonometric measurements- 1-11, 1997