Fact · Voice and AI
5voice satellites
Home Assistant says five voice satellites can stream audio at the same time without overwhelming a Raspberry Pi 4, because wake word detection runs inside Home Assistant.
Checked against its source on October 17, 2026
In the source's own words
“Currently, users can have 5 voice satellites streaming audio at the same time without overwhelming a Raspberry Pi 4.”
The Home Assistant approach to wake words, Home Assistant project, Home Assistant, 2026, Overview of the wake word architecture.
Open the original- What it measures
- Wake word detection is done inside Home Assistant rather than on each device, which is why a cheap satellite can still use a wake word.
- What it does not show
- The project's estimate for its own setup. Your Raspberry Pi model, other add-ons and speech engines change the limit.