Plug your condenser microphone into your computer before starting up the cubase program; then after you plug it into your computer start cubase; when cubase loads, press the [F4] key, then that will bring you to the audio configuration menu, there will be a speaker option and microphone option or what ever that stuff is; go to the microphone option and choose the microphone that you are using, then after you choose your microphone setting click close; then after that make create a [audio] then on the audio tab you will see a red button, by pressing that it will allow you to record, but there is another button beside it called a [monitor], press that button then it will allow you to hear your voice while you record your vocals. hope this help.