How to install pyaudio

download the wheel file (.wl)

Then

pip install PyAudio‑0.2.11‑cp37‑cp37m‑win_amd64.whl

Install the wheel like this above, but with the name of your version

pip install PyAudio-0.2.11-cp39-cp39-win_amd64.whl

In my case, I installed the one above