Disney Research, the research arm of Disney, is studying the impact of speech patterns and styles, looking for ways to improve the quality of interaction between people and robots. In the research, Disney's humanoid robot can imitate the mode and style of playmates, and try to create a perfect communication experience.
In general, computer-generated voice and interaction patterns are very rigid and people may not want to communicate with them. And between people, such as children who play with each other, they have more verbal communication and are often more successful. In the study, the researchers teamed up with the robots to let them play platform games together. One player told the character to go and the other player told the character to jump.
The system they developed can listen to the child's voice and extract some basic features: loudness, byte length, and frequency. For example, some children may respond quickly, but may say that they may be extended when jumping. Other children reacted a bit hesitant, but they were quicker and louder when they said they were leaving. When the child's speaking style is confirmed, the robot can choose a verbal response from a slightly different sound file, and the intonation and speaking speed also change slightly.
In one case, it chooses the style of speech that is closest to the child. In other cases, it basically selects any style other than the child. Every child plays synchronized and asynchronous multiplayer games with the robot. The results show that children with a similarly chosen robot have a higher level of participation and higher scores. And when they play an out-of-sync version, the child scores lower and is less active. In further analysis, it was found that this difference only affects older children. This means that people's willingness to cooperate is a skill learned through social interaction.
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