In our homes we now have home appliances such as a dish washing machine, a microwave oven, a washing machine, a tumble drier. Every one of these appliances makes a little sound notification when it's done to notify the user. This is understandable from the manufacturer's perspective. Of course a user wants to know when the dish washer is ready or when the tumble drier is done.
But none of these appliances (apart from the microwave oven possibly) requires immediate action by the user. As for the washing and tumble drying, nothing needs to be done right away. A dish washer needs to cool off and make the dish dry with the after-heat before it can be handled. The same goes for the tumble drier.
I wonder if anyone has pursued a study on the topic of home appliances sound notification and their usefulness. Or if there is an article out there on the subject? Maybe someone here from the industry knows the general idea behind the sound notifications? And if there is a thought on all these notifications working together in the perspective of a user at her/his home?