12. The computing device of claim 11 , wherein the processing element is further configured to determine each occurrence when the customer's tone of voice value is above a first threshold and determine whether the tone of voice value for the customer service representative increases above a second threshold within a first time period after each occurrence.
12. The computing device of claim 11 , wherein the processing element is further configured to determine each occurrence when the customer's tone of voice value is above a first threshold and determine whether the tone of voice value for the customer service representative increases above a second threshold within a first time period after each occurrence. 13. The computing device of claim 12 , wherein the processing element is further configured to increase the second score for each occurrence when the tone of voice value for the customer service representative does not increase above the second threshold within the first time period, decrease the second score for each occurrence when the tone of voice value for the customer service representative does increase above the second threshold within the first time period, and display on the display the second score and a list of occurrences when the customer service representative changed his tone of voice in response to a change in tone of voice of the customer.