DETERMINATION OF CUSTOMER PROXIMITY TO A REGISTER THROUGH USE OF SOUND AND METHODS THEREOF

A method is disclosed for determining a customer's progress through a checkout line at a store and for correlating customer satisfaction thereto. A mobile electronic device with mobile self checkout software thereon may record and analyze ambient noise to determine when a customer is in a checkout line as well as to track the customer's progress through the checkout line. The software may provide detailed data about the shopping and checkout experience. This information may be correlated to customer satisfaction and used identify particular strengths and weaknesses in the shopping experience offered by a store.