Will be interesting to see how Google implements a more open DSP wake-word detection. The requirement for it to work without the app holding a default role suggests needing to recognize multiple wake-words for each of the non-default apps that uses one.
From an openness perspective this is excellent. Technically it seems challenging with a DSP designed to detect a single thing using as little power as possible. Currently this balances doing as little work as possible to detect plausible utterances of the wake-word on the DSP while minimizing the costs of spurious wake-ups on the CPU. At the very least multiple wake-words seems to need the DSP to do more work and wake up the CPU more often.
From an openness perspective this is excellent. Technically it seems challenging with a DSP designed to detect a single thing using as little power as possible. Currently this balances doing as little work as possible to detect plausible utterances of the wake-word on the DSP while minimizing the costs of spurious wake-ups on the CPU. At the very least multiple wake-words seems to need the DSP to do more work and wake up the CPU more often.