Technical GlossarySpeech, Voice and Audio AI

MFCC

A classical acoustic feature representation that summarizes the spectral envelope of speech in a way aligned with human hearing.

MFCC is one of the most influential and widely used classical feature representations in speech processing history. By compactly capturing the timbral structure of speech, it served for many years as a foundation in ASR, speaker recognition, and keyword spotting. Although raw audio and learned features are more common in the deep learning era, MFCC remains important in low-cost and interpretable systems.