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|Title:||0.08mm² 128nW MFCC engine for ultra-low power, always-on smart sensing applications||Authors:||Chong, Yi Sheng
Goh, Wang Ling
Ong, Yew Soon
Nambiar, Vishnu P.
Do, Anh Tuan
|Keywords:||Engineering::Electrical and electronic engineering||Issue Date:||2022||Source:||Chong, Y. S., Goh, W. L., Ong, Y. S., Nambiar, V. P. & Do, A. T. (2022). 0.08mm² 128nW MFCC engine for ultra-low power, always-on smart sensing applications. 2022 IEEE International Symposium on Circuits and Systems (ISCAS), 2680-2684. https://dx.doi.org/10.1109/ISCAS48785.2022.9937315||Project:||A1687b0033||Abstract:||Mel frequency cepstral coefficient (MFCC) features are widely used in applications such as keyword spotting, bearing fault detection and heart sound classification. This work proposes a low power MFCC engine that enables its use for battery-powered edge applications. Three hardware algorithm co-optimizations were adopted to achieve energy efficient MFCC hardware implementation. The approximated MFCC features due to the optimizations still allows good accuracy when deployed in several applications such as keyword spotting and bearing fault detection, reporting negligible accuracy drop of 1.5%. The proposed MFCC hardware consumes only 128nW at 0.3V supply and occupies only 0.08mm2 in 40nm CMOS technology, which are 5x and 2.75x power and area reduction respectively when compared to the prior arts.||URI:||https://hdl.handle.net/10356/159307||DOI:||10.1109/ISCAS48785.2022.9937315||Rights:||© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at: https://doi.org/10.1109/ISCAS48785.2022.9937315.||Fulltext Permission:||open||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Conference Papers|
ERI@N Conference Papers
IGS Conference Papers
SCSE Conference Papers
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Updated on Dec 7, 2022
Updated on Dec 7, 2022
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