Once a solution for amateur, off-key singers on karaoke nights, Auto-Tune and other voice tuning software have progressed from the club to the recording studio but never beyond sounding artificial.

The digital revolution has given new meaning to the phrase "fix it in the mix," which formerly meant that little pops and glitches could be glossed over or repaired after a recording was finished.

Vocal pitch correction software-maker, Antares, has taken the wraps off the next version of Auto-Tune, which adds several new features including enhancing the core technology. Dubbed Auto-Tune Evo, ...