An Android developer consulted by the European Commission describes what the DMA interoperability action requires Alphabet to open, including DSP wake word detection

Sources: Open Home Foundation write-up, European Commission DMA site, HN discussion
Summary: The Open Home Foundation write-up, by the Home Assistant Android developer the European Commission consulted, states that the Commission acted on 2026-07-16 to require Alphabet to open eleven Android features to third parties, with deadlines given as Android 18 by 2027-08-01 and concurrent hotword detection by Android 19 no later than 2028-08-01. The post documents the two-stage Android wake word architecture, in which a DSP stage runs always-on detection that third-party assistants cannot reach, and enumerates the platform capabilities that have been closed to them. The Commission's own DMA news index carries an item dated 2026-07-16 but titles it as guidance to Google for AI interoperability on Android, and the underlying document did not resolve from this environment, so this block does not assert which instrument was issued.
Why it matters: The write-up documents the two-stage Android wake word architecture and the exact platform capabilities third-party assistants have been unable to reach, which is the concrete reason an always-on wake word costs roughly 15 percent battery in a third-party app against about 1 percent for the built-in path.
Follow-up: Resolve from the Commission's own document whether the 2026-07-16 action is a binding specification decision or guidance.