limit of audibility

例句：

1. 1. The scientist conducted an experiment to measure the audibility of the sound.
   科学家进行了一项实验，以测量声音的可听度。
2. 2.The hearing aids are designed to improve people's audibility.
   助听器旨在提高人们的听力。
3. 3.The music was so loud that it drowned out all other sounds, making it difficult for me to hear what was being said.
   音乐太响了，以至于其他所有的声音都被淹没了，让我很难听到在说什么。