- Spent the week building multiple passive high pass filters, built high pass filters with the same cutoff frequencies and had the output of one cascade into the input of another. There are four high pass filters connected each filter was designed to have a 40Hz high pass filter cutoff frequency. Then connected the microphone with the low pass filter that was already built, then sent the output of the low pass filter to the laptop. The output sent to the laptop sounded very low when played on the laptop.
- The schedule is on progress
- The plan for the upcoming weeks is to work on amplifying the output of the circuit with an op-amp and connecting the high pass filter with the rest of the circuit. After the low pass filter, the output can be amplified. Then by using the 3.5mm breakout, the 3.5mm 2-sided cable, and the 3.5mm to USB adapter the output can be sent to the laptop.
Carnegie Mellon ECE Capstone, Fall 2019