Apple's latest AI buy is not just about clearer calls in a crowded café. Q.ai's work includes helping devices interpret whispered speech and improving audio in noisy environments. The move also lands as Apple continues to fold new AI tools into its audio products. Q.ai's research and talent could fit neatly into that push, especially as 'silent speech' concepts move from labs into consumer devices. Notably, this is the second time Q.ai CEO Aviad Maizels has sold a company to Apple, after selling PrimeSense in 2013.