100% accuracy on training? model not working

Im trying to control a LED using my voice on the Arduino nano 33 BLE.

I have four classes, BLUE ,RED,YELLOW and Noise. With about 50 1s samples for each class. When i train this model i just get a 100% accuracy which doesn’t make sense. When i deploy my model to the board it doesn’t work , it always classifies everything as noise.

Can anyone tell me whats wrong

Hello @mar056,

Is the data used for training comes from the Arduino nano 33 BLE Sense?
Also, you might need to adjust the microphone gain in some cases.