I found this out when I was trying to turn an ordinary 5 dollar thrifted musical keyboard into a midi controller by plugging it into my PC, putting it on "sine

I found this out when I was trying to turn an ordinary 5 dollar thrifted musical keyboard into a midi controller by plugging it into my PC, putting it on "sine wave" and using a Goertzel detector The latency for detecting audio-frequency waves is quite bad This also stymied my desire to put digital audio onto a vinyl record :( literally not enough bandwidth