Ambient noise of the test room and signal characteristics of audiometric system seem to be the two main variables during the extended low-frequency hearing tests. The present data were compared with ISO 226-1987 and some other reports.

  • 文中结果同ISO226-1987及国外有关资料进行了比较.分析表明,测听室环境噪声、所用信号的谐波失真及频率稳定性乃影响扩展低频测试结果的主要变量。

  • 互联网摘选 2025-01-19 23:34:09

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