Voice has become a natural interface for human-machine communication

Evidence

Digital technology also enables man–machine communication by voice, as illustrated in Figure I.5. Messages can be conveyed from or to various devices and computers in everyday life using our most natural means of communication, the spoken language. — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 84

Categorization

• corroborated: 2 independent passages support this claim — Ville Pulkki, Matti Karjalainen, Communication Acoustics- An…, 84
• XREF: connects to: A single dominant voice interface erases the boundary between self and market — Shoshana Zuboff, The Age of Surveillance Capitalism, 831