Ta Da! (IMAGE) Brown University Caption The waveforms of two similar sounding syllables "ta" and "da" allow researchers to make precise time measurements and comparisons of speech production. Credit Blumstein lab/Brown University Usage Restrictions with credit 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.