Imagine a robotic pet that recognizes your voice the first time you speak to it and remembers who you are the next time you meet.
Researchers in Spain have developed exactly that—a rabbit-shaped robot named Mía that can identify people simply by listening to them speak.
The robot was created by scientists at the Universidad Carlos III de Madrid (UC3M). It is designed to provide emotional support and companionship for older adults experiencing cognitive decline.
The team is currently testing Mía in day centers operated by Madrid City Council.
One of the biggest challenges in social robotics is making interactions feel natural and personal. For a robot to respond appropriately, it needs to know who it is interacting with.
Traditional systems often use cameras and facial recognition to identify people, but these approaches require powerful computers and can raise privacy concerns.
Mía takes a different approach. Instead of using cameras, the robot relies entirely on its built-in microphone.
It listens to a person’s voice and creates a unique “voice signature” based on the patterns and characteristics of their speech.
Perhaps the most impressive feature is that the robot does not need any special training period. The first time someone speaks to Mía, the system automatically begins building a voice profile.
If the robot hears the same person again, it can recognize them by comparing the new voice data with the stored voice signatures.
The system works in a way that resembles human learning. Every conversation provides more information, allowing the robot to improve its understanding of the people around it. If a completely new person speaks to Mía, the artificial intelligence recognizes that the voice does not match any existing profile and creates a new one.
Because all of the processing happens inside the robot itself, voice data never leaves the device. This local processing offers an important privacy advantage, as personal information is not sent to external servers or stored online.
The robotic rabbit is part of a growing field known as animal robotics. The idea is to provide some of the emotional benefits of animal-assisted therapy without the challenges of caring for real animals. In some settings, real pets may not be practical because of allergies, hygiene concerns or the difficulties of looking after an animal.
Early tests with older adults have produced encouraging results. Researchers found that interacting with Mía can improve mood and encourage social engagement. The robot often acts as a social bridge, helping reduce feelings of loneliness and prompting users to communicate more with one another.
The researchers believe personalization could make the robot even more helpful in the future. For example, if Mía recognizes a user who tends to become anxious or restless, it could automatically adjust its behavior and use calming responses tailored to that individual.
The research team continues to test and refine several working versions of Mía in real-world clinical settings. They are also looking for industry partners to help bring the technology to a wider market.
The scientists hope their work will lead to a new generation of companion robots that can enter a home and quickly learn who lives there simply by hearing each person’s first “good morning.”
Such technology could make assistive robots more personal, more accessible and more effective in supporting older adults and reducing social isolation.
