Expanding Wikie’s Vocal Range
Wikie was next exposed to five new orca sounds that she had never heard before; some of these sounds sounded like a creaking door or raspberries.
Call clarified, “We needed words that were straightforward but distinct.” “It would have been unrealistic to choose something too complicated.”
Assessing Wikie’s Accuracy
Furthermore, six separate researchers listened to recordings and compared them to the original sounds without knowing the intended phrases beforehand. Wikie showed a quick capacity to imitate both human and orca noises over the course of 17 trials.