Hi, I am building a project where I am using an op amp to drive a very small audio signal from a microphone. The problem was that just using the audio signal from the microphone was not enough to produce an audio signal at the speaker. Therefore, I created an op amp to make the sound better at the speaker side. Well, right now when I have the speakers hooked up to the op amp, and I've disconnected the microphone, the speakers are making a rattling noise/static noise. I am wondering why that is? The speakers are idol, it is making that the noise. Any ideas?
Any help is appreciated.
Any help is appreciated.