Fact · Voice and AI
16MB of flash storage
The Voice Preview Edition uses an ESP32-S3 system on a chip with 16 MB of flash storage and 8 MB of octal PSRAM, and an XMOS XU316 chip for audio processing.
Checked against its source on October 17, 2026
In the source's own words
“ESP32-S3 SoC with 16 MB of FLASH storage 8 MB octal PSRAM Audio Processing XMOS XU316”
Home Assistant Voice Preview Edition, Home Assistant project, Home Assistant, 2026, Specs: Inside and Audio processing.
Open the original- What it measures
- The specs list the hardware as the project publishes it. The XMOS chip handles echo cancellation, stationary noise removal and automatic gain control.
- What it does not show
- The specs describe one hardware revision. The project says the firmware is open source and that ESPHome is preloaded.