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The Invisible Gatekeeper of Voice Tech
Voice activity detection (VAD) is the unsung hero—or villain—of every voice tech system. It decides whether your voice assistant hears you or ignores you, and its failures are often invisible. This episode dives into the key players in VAD, from WebRTC and Silero to Picovoice Cobra and Whisper wrappers, and explores why this seemingly simple task remains an active research problem. We’ll also uncover why VAD is uniquely suited to run efficiently on CPUs and how its challenges are shaped by evolving use cases like streaming voice assistants and edge devices. Episode 2288 —…
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