Ultrasonic sounds (IMAGE) Aalto University Caption Hearing ultrasonic sounds with the device in the quietest place in Finland, Aalto University's anechoic chamber. Credit Ville Pulkki/Aalto University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.