Integer-Only Approximated MFCC for Ultra-Low Power Audio NN Processing on Multi-Core MCUs
2021 IEEE 3rd International Conference on Artificial Intelligence Circuits and Systems (AICAS)(2021)
Abstract
Given the recent advances in the design of efficient Deep Neural Networks (DNN) for tiny edge devices, the feature extraction frontend has become a computation bottleneck for enabling audio processing on low-end MicroController Units (MCUs). To address this challenge, this work presents novel hardware-aware integer quantization schemes for the MelFrequency Cepstral Coefficients (MFCC) feature extr...
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Key words
MelSpectrogram,MFCC,Keyword Spotting,MicroControllers,Multi-Core,TinyML
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