Amazon hired UX Sound Designer for its Astro robot in 2018, a time when the device lacked character direction despite having established features and a form factor. The central question pitted treating Astro as simply "Alexa on wheels" against imbuing it with its own robot personality.
The Astro team split over the approach. While some advocated focusing on the Alexa utility, the lead sound designer argued Astro required its own character, a view shared by most of the UX team. The reasoning was that a machine moving through a home with apparent intent would inevitably be anthropomorphized by users.
Ultimately, the decision landed on giving Astro its own identity rather than subsuming it under Alexa. User testing validated this choice, showing that people perceived the robot as a distinct character rather than a voice assistant on wheels. It could navigate homes, patrol proactively, check on family members, and transport items in its cargo bin.
The design philosophy holds broader implications for consumer robotics. The piece suggests that any physically autonomous device entering personal spaces will be ascribed personality regardless of designer intent, making character design an unavoidable engineering consideration rather than an optional embellishment.
"People didn't see the robot as Alexa," the designer noted. "They saw it as its own character." This framing positions sound and behavioral design as core features for home robots, not afterthoughts.