Keyword Spotting on a STM32F446RE microcontroller using the CMSIS-NN library. Simple project to test out preprocessing and neural networks on a microcontroller.
The model used was TC-ResNet8 from https://arxiv.org/pdf/1904.03814.pdf (with some modifications). It was trained using PyTorch without any residuals on the Google Speech Commands.
The project was built using Keil. It requires a license to sucessfully compile.
The c source code can be found in ./KWS_MCU/Inc and ./KWS_MCU/Src
Other useful directories:
./TCResNet_pytorch -> Original TCResNet models implemented in Pytorch
./Scripts/TrainedNetwork -> PyTorch model
./Scripts/Preprocessing -> Code to generate Mel_filters
./Scripts/ParameterExtraction -> Code to Extract weights from PyTorch model to fixed-point representations
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