X Factor bosses have introduced a ban on using voice enhancement techniques to improve participants’ performances.
It follows a public backlash after the opening show of the current series saw some singers’ voices improved by the technology, also known as auto-tune.
"There will be no auto-tune in the audition shows or for competitive performances on live shows," a spokeswoman told BBC News.
Earlier this week, TV bosses had insisted that they only used the technology during the auditions stages to remove additional noise background noise.
Auto-tune has become a common tool throughout the music industry and is now often used to create a robot-like effect on a singer’s voice.
Over 11.1million people watched the opening episode on Saturday. The X Factor runs until Christmas.
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