Pulseaudio With SimpleScreenRecorder Problem

I just installed SimpleScreenRecorder to record my screens with audio. SSR is working smoothly. Only problem is my voices are not recording with pullseaudio as Backend! When I record audio using ALSA I hear sounds but the sound is very very very noisy. On the other hand with Pulseaudio I simply don't hear even any pin drop sound. I guess my pulseaudio needs some treatment. How to solve the problem and how can I get smooth audio recording using SimpleScreenRecorder?