I do a lot of outreach so the sound of parents/kids is ever-present .....
so...... when I go to observe by myself I don't want to hear phones, people, slewing motors or controllers beeping..... I often set up in the Snowy Mountains where the only sounds are some dingoes howling, brumbies snorting and scraping the ground and the wind in the snow gums...... and the kettle boiling every now and then....