Information presentation device

An information presentation device comprising:

• one or more speakers configured to present audio information regarding a state of contact between a road surface and one or more tires of a vehicle to an occupant of the vehicle;
• one or more acceleration detectors configured to output one or more acceleration signals indicating acceleration rates in a front-rear direction of one or more unsprung components, the one or more unsprung components being displaced relative to a vehicle body of the vehicle in accordance with strokes of one or more suspensions that support one or more wheels of the vehicle;
• and
• a processor configured to:
• perform filter processing on the one or more acceleration signals such that a component of a predetermined frequency band correlated with the state of contact between the road surface and the one or more tires is emphasized over components of other frequency bands;
• generate the audio information from the one or more acceleration signals subjected to the filter processing;
• and
• output one or more resultant signals as one or more driving signals to the one or more speakers.