X Factor hit by sound issues which left judges 'sounding like Daleks'
Viewers complained that they thought their TV screens had broken and that judges Simon Cowell, Robbie Williams, his wife Ayda and ex-One Direction star Louis Tomlinson sounded like Daleks.
Causing more confusion, host Dermot O'Leary failed to offer any on-air explanation because the show had been pre-recorded on Saturday afternoon.
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A message simply flashed up on screen saying: "We are sorry for the temporary interference in sound" after the problems began midway through the talent show.
Viewers called for ITV to axe the phone vote.
And later, at the end of the programme, X Factor flashed up a message saying Saturday's vote had been cancelled.
"Due to a technical issue, tonight's vote has been cancelled. It will open in tomorrow night's show," it said.
The sound issues distorted contestants Danny Tetley and Anthony Russell's performances.
And an ITV announcer said after the show aired: "We're very sorry for the problems with the sound on the X Factor tonight."
One viewer wrote on Twitter: "I thought my TV had finally given up on me after eight years, but it's just X Factor."
This Morning host Phillip Schofield wrote: "Oh no!!! They're all Daleks on the X Factor!!!!!"
One viewer joked that ex-judge Louis Walsh was "the real culprit" behind the sound issues.
And @basicallylewis wrote: "I thought they were doing the robot effect for Halloween."
While @flump23 added: "Surely the votes need to be halted. We can't hear them sing properly. It's not fair on them."
A spokeswoman said: "We apologise for the technical issue that affected the sound on part of tonight's episode of The X Factor. We are investigating why this happened.
"We can confirm tonight's public vote has been cancelled and will instead open in tomorrow night's show at 8.30pm on ITV."
Performances on the X Factor app and on the ITV website can be viewed without sound issues.