NOTIFICATION APPARATUS AND NOTIFICATION METHOD

A notification apparatus () includes a first signal converter () disposed in a cushion of a seat () and configured to convert a vibration transmitted to the seat () into a seat vibration signal, a second signal converter () disposed in a position other than the cushion and configured to detect a transmitted vibration and to convert into an input vibration signal, a level difference calculator () configured to calculate a signal level difference ΔG by subtracting a signal level of the seat vibration signal from a signal level of the input vibration signal, a notification aspect determination unit () configured to determine a notification aspect for making a notification to a user, on the basis of a value of the signal level difference ΔG, and a notification execution unit () configured to, when acquiring notification information, make the notification on the basis of the notification aspect.