So after a long time I managed to get some sound on my computer (I have a micro, interface and laptop). But I can't do that in apps like audacity if I want to sing to an inserted music. There's always something with an error. And can it be because I have no speakers connected to the interface? So speakers are REQUIRED? So far I've only used headphones
What do you mean for an interface? A mixer with phantom power and USB connection?
An interface shouldn't have anything against different devices.
What is phantom power? Sorry I don't know myself well yet, but I have the behringer u phoria umc202hd
A phantom power supply is necessary for studio microphones with an electret capsule to receive the necessary voltage for a useful signal.
You have phantom power. This is this little + 48V switch in the back.
And with USB interfaces there shouldn't be any problems, can you play music on the interface?
What is an "electret capsule"? Do you mean condenser microphones?
It may be because of the speakers. Which is also likely that any assignment at the inputs or outputs is wrong.
There's a whole range of functions for not working errors.
Exactly. Condenser microphones have an electret capsule in them that is powered by 48V.
So when I play through the interface ton it always works
The interface doesn't care if there are boxes or not. You have direct monitoring via the headphone output.
What kind of error is there? Make a screen copy. Did you download the lame encoder for MP3?
Did you (as almost always) not have a manual with you?
http://behringer.de-manuals.com/d-u-phoria-umc22.html
You can download it here as a PDF. I recommend the complete manual, not just the quick starter. And also read through
