Audacity Forum

Hi there, I am using audacity 2.4.2 on a Macbook running Catalina. I've got a sontronics podcast mic and an ID4 interface. I can't seem to get rid of the constant 'hissing' sound, even though i've passed the ACX test, my client is comlainig about it. I've tried noise reduction at 9,6,6 and it doesn'...