Buzz and hum on a USB microphone is pretty unusual, but not entirely out of the question. This microphone gets its power from the USB connection and if there’s anything wrong with that, it can cause the sound to be bad. Change the USB connection if you have more than one and make sure the connection is seated firmly. See if it still buzzes in a different room.
If possible, try a different computer.
You can get distorted audio by sending the microphone through a USB hub. Microphones take home runs only. No hubs.
Sometimes a wall power supply can cause problems. Run the laptop on internal batteries and see if that helps.
my voice sounds pretty rubbish its flat dull and not alot of spice
As does mine. We get a lot of requests from people who want us to make them sound like Famous Singer or Famous Announcer. We can’t give you interpretation, emphasis and feeling. There is AutoTune which can keep you on pitch and bad echo which can make you sound like you recorded in your uncarpeted bathroom, but past that, we got nothing
A friend of mine is breaking out as a jazz singer (at 74). He said in interviews that earlier in his career he spent his time just singing the words. That was OK. Now he has a conversation with the audience and it’s stunning listening to him sing.
Another example is a guy who if you listen to him talk sounds like he could strip varnish from wood with his voice. Someone asked him to sing and I thought they were crazy. Turns out he knew how to make the best of his voice. He and a piano could hold a room for hours.
Most people are horrified the first time they hear their voice back to them in a good sound system. Yes, that’s really what you sound like to us. Play singers that you like and then play you and try to pick out the differences. Keep changing your character until it gets better and better. Find one that most closely fits you. Singing is hearing.
Sorry. No filter for that.
By the way this is the exact place that the non-hardware overdubbing solutions fall apart.
If you don’t use one of the tested hardware solutions (or ones that work as they do), then you can’t hear your own voice properly in the performance mix. Some people can’t sing without that.