PROBLEM TO BE SOLVED: To provide a device by which passengers can spend somewhat comfortably in a vehicle, to let the passengers feel human-like activity or feeling expressions, by giving the vehicle communicating functions such as conversations.SOLUTION: By an information acquisition part 410, at least one is acquired among user information, status information in a vehicle and traffic situation information. By a determination part of communication necessity 421, the necessity of communication to the user is determined based on the first information which was acquired. By a setting part of communication content 423, a content of the communication to the user is set. By a communication tolerance estimation part 422, a tolerance of the user for the communication is estimated based on the second information which was acquired. When it is determined that the communication is necessary and the tolerance is equal to or greater than a threshold value, the communication to the user is carried out by a communication execution part 430 according to the content which is set by the setting part of communication content 423.SELECTED DRAWING: Figure 4
SPEECH PRODUCTION DEVICE AND COMMUNICATION DEVICE