Ashley Carman, writing for Bloomberg:
People on the prowl for a new podcast to consume often go for a stimulating option like a political debate or a true crime mystery to quicken the pulse. But when the din of the world becomes too much, listeners often need the opposite vibe: something soothing and sedating, maybe with the sound of static or falling rain. Perhaps a touch of crickets.
Enter — quietly, on tippy-toes — the white noise podcasters.