ELECTROACOUSTICAL COMPENSATION HEARING AID

描述：（改编自申请人的摘要）申请人 组织已经发现并实验观察到， 电声补偿（ELAC）电路抵消闭塞 戴助听器的人的听力损失。 带ELAC电路的无源助听器显示出显著的 在以下方面改进了现有的通风设计：1）更高 正反馈振荡前的可用增益，2）降低放大器 和接收器失真，3）减少环境噪声的直接传输， 4)更好的低频响应（如果需要），5）更适合 在运河中的设备。 鉴于7年的耳内闭塞 基于ELAC电路的通信设备设计，申请人将 能够设计、制造和执行ELAC的有限评估 在有限的时间和资源的拟议第一阶段助听器 study. 所有设施都已到位。

DESCRIPTION: (Adapted From the Applicant's Abstract) The applicant organization has discovered and experimentally observed that an Electroacoustical Compensation (ELAC) circuit counteracts the occlusion effect experienced by hearing aid wearers of unvented hearing aids. Unvented hearing aids with the ELAC circuit show promise for a significant improvement over present vented designs in the following areas: 1) Higher available gain before positive feedback oscillation, 2) Reduced amplifier and receiver distortion, 3) Reduced direct transmission of ambient noise, 4) Better low-frequency response (if needed), 5) Better suited for in-the-canal devices. In view of the seven-year involvement with occluded in-the-ear communication device design based on ELAC circuit, the applicant will be able to design, fabricate, and perform a limited evaluation of ELAC hearing aids within the limited time and resources of the proposed Phase I study. All facilities are in place.