I know using microphones, people generally stay about 6 inches away for softer parts and 9 inches for loud parts, but without a preamp, what is the best way to sing so that vocals are near the same volume in a single track? Recently i have been using two separate tracks for verse and chorus vocals so I could adjust the sound levels better. For my purposes I am using an AT2020 usb mic. Also, how would I know the right amount of compression to add? Thanks!