<u>Jarring</u> is used to describe something or someone that has a harshly concussive, disagreeable, or discordant effect. The word also makes reference to something or someone incongruous in a striking or shocking way. In this case, it describes the noise produced. As you can notice, it does not have a positive connotation in the sentence and the following sentence affirmed it: "everyone quickly covered their ears!"
I think you should start with English translation because 67 country can talk so they can understand that what are you trying to do so do you like my suggestion? and you can write about nature first