A new method to estimate sound energy entering the middle ear
文献类型：会议论文
| 作者 | Chen, Shixiong; Deng, Jun; Bian, Lin; Li, Guanglin |
| 出版日期 | 2013 |
| 会议名称 | 2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013 |
| 会议地点 | Osaka, Japan |
| 英文摘要 | Standing waves in the ear canal can cause inaccurate quantification of the sound pressure level (SPL) entering the ear and therefore lead to unreliable results in clinical tests. Since it is impractical to directly measure the SPL at the eardrum position, in this study we proposed a new method to estimate the eardrum SPL by solely making measurement at the entry of the ear canal. To achieve this, the acoustic characteristics of the earphone were calculated using a calculation tube with variable lengths. Then the ear canal impedance was calculated according to the obtained source characteristics. Finally, the eardrum SPL was estimated by the ear-canal impedance and the SPL measured at the entry of the ear canal. The results showed that the eardrum SPL could be reliably estimated for all the five subjects participated in this study. The maximal estimation error was less than 3 dB for all frequencies from 0.5 to 10 kHz. These findings suggested that the proposed method could avoid the standing wave problem and therefore might be a great candidate for accurate calibration of sound pressure in various acoustic measurements. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/4947]  |
| 专题 | 深圳先进技术研究院_医工所 |
| 作者单位 | 2013 |
| 推荐引用方式 GB/T 7714 | Chen, Shixiong,Deng, Jun,Bian, Lin,et al. A new method to estimate sound energy entering the middle ear[C]. 见:2013 35th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2013. Osaka, Japan. |
入库方式： OAI收割
来源：深圳先进技术研究院
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