# Precision Adaptive MFCC Based on R2SDF-FFT and Approximate Computing for Low-Power Speech Keywords Recognition

> Research article (IEEE Circuits and Systems Magazine, 2021) · cited 35× · AI/ML

**Wikidata**: [openalex:W3212935296](https://www.wikidata.org/wiki/openalex:W3212935296)  
**Source**: https://4ort.xyz/entity/precision-adaptive-mfcc-based-on-r2sdf-fft-and-approximate-computing-for-low-power-speech-keywords-recognition