[daneel_w]

The software portion of this has a common real-world use case: keyword spotting (voice command) in interactive phone calls.

[eternityforest]

The general concept has a real world use, but this specific implementation probably doesn't perform as well as most of the already available ones on more powerful hardware.

Maybe it could have an IRL use for efficient wake word spotting or the like though.

[fennecfoxy]

The point of a wake word is that it's using low power hardware, so everything can sleep, that's why it's a wake word.

Though tbf much more powerful arm processors are indeed still very low power.