Infants Recognize Vowel-Like Sounds (video) Acoustical Society of America Share Print E-Mail Loading video... Caption Even at the pre-babbling stage, infants recognize vowel-like sounds, but they tend to dwell on these sounds when from the mouths of other babies. Credit Polka Usage Restrictions This video 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.