zuluclayman

Depending on your computer's audio device type (dedicated sound card, on-board sound & if so which brand?) you will have some controls such as an equaliser function - most have a pre-set named vocals which will bring the range of sounds that have the same frequency as vocals to the fore in the sounds mix.
Double click on your speaker icon in the system tray (lower RHS of screen) and see if you have an equaliser there OR go to Control Panel > Sounds and see if it is there.