Comment by lordmathis
6 hours ago
I started designing and building a voice assistant for myself and then realized that the only time I'd find it useful would be during cooking to set timers. But a loud extractor fan would be running making the voice recognition very difficult.
An extractor fan is the kind of consistent noise that good signal processing and voice recognition ought to be able to strip out, especially if using a dispersed mic array. Even if your voice is much quieter (to your human ears) than the fan. It's a channel separation problem.