Glossary Library

Technical GlossarySpeech, Voice and Audio AI

Always-On Audio Detection

A system approach that enables low-power sound event detection while a device remains in continuous listening mode.

Always-on audio detection manages the delicate balance between user experience and energy efficiency. While continuously monitoring the environment, the system must also respect battery, compute, and privacy constraints. Wake word detection is the most common example, but some systems extend the same setup to detect sirens, baby cries, or security-related sounds.

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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.