She couldn't make herself_above the noise of the traffic.为什么是heard而不是hear?

She couldn't make herself【heard】_above the noise of the traffic.为什么是heard 而不是hear?
句意：车辆的喧闹声使他无法【让人听到他的声音】.
结构搭配：
make oneself heard/noticed/known/understood 使自己被别人听到/注意/认识/理解
例如：
The speaker raised his voice to make himself 【heard】.
The teacher explained his idea again to make himself 【understood】.不是make sb. do sth. 吗？ 还有被动式不是有be done 的be吗？make 的典型用法不止一个： make sb do sth—— sb be made to do sthmake sb/sth done 你问的问题就是这个结构中的变化形式。例如：We made the work 【done/finished】 yesterday. 我们昨天已经让人做了/完成了这项工作。