So, I want to record covers for youtube and I want them to have high quality (without noise, clear, the voice is not distorted). What gear I must buy to achieve that quality? My computer is laptop. I want record keyboard, piano, violin, acoustic guitar and voice. What interface do I need? And what kind of microphones? I tried to record my keyboard using the method of line recording. And in this recording, except good quality keyboard sound, is a lot of noise. What I must buy/do to reduce this noise? My budget is something about 250$.