Audio Tests for Acoustic Vehicle Alerting Systems (audio) Acoustical Society of America Share Print E-Mail Loading audio... Caption Audio tests for acoustic vehicle alerting systems. Credit UNECE Usage Restrictions This sound clip may be used only with appropriate credit. Share Print E-Mail 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.