Glossary Library

Technical GlossarySpeech, Voice and Audio AI

Wake Word Detection

A task that detects a short trigger phrase in continuous audio to activate a device or system.

Wake word detection is the front gate of voice assistants and on-device interaction systems. It operates under continuous listening and therefore requires very low latency and low power consumption. At the same time, it must minimize false triggers without missing genuine activations. It is one of the most heavily optimized tasks in edge AI and embedded speech systems.

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Explore these concepts to continue your artificial intelligence journey.

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Automatic Speech Recognition

The core speech-to-text task aimed at converting human speech into text.

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End-to-End ASR

An approach that performs speech-to-text conversion with a single unified network instead of separate acoustic and language models.

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CTC Decoding

A core learning and decoding approach that helps recover text from speech sequences with unknown alignments.