[ف ض ل]. (فعل: رباعي لازم، متعد بحرف). أفْضَلَ، يُفْضِلُ، مصدر إفْضَالٌ.The simplest way to remove this type of humming is to EQ it out. You can do so only in the event the frequency doesn’t overlap with all your voice/instrument.Use suitable microphone get stages: Location the attain as well h