You can't understand what anyone's saying in Happy Valley because of the Yorkshire dialect.

That's what the BBC has said after many fans complained about the sound on the show.

Read more: Ten things we learned from episode two of Happy Valley series two

A spokesperson said: "We worked very hard to ensure everything was audible while keeping the sense of reality and the rawness of performances.

"Happy Valley is a drama that has been lauded for its realism and dramatic pathos – as such the dialogue is representative of the characters and area in which it is based.

See pictures from Happy Valley S2 E2 below.

"We trust it didn't interfere with the audience enjoyment of the opening episode which was watched by 6.5 million."

But even local fans watching the show are struggling to grasp the dialect on the hugely popular show, filmed in Hebden Bridge, Sowerby Bridge, Huddersfield, Elland and other areas across Kirklees, Calderdale and Bradford.

After the first episode last week, social media was buzzing with praise for the show - but many people reported issues with the sound.

Read more: Fans welcome back 'fantastic, gripping' drama - but what happened to the sound?

After this week's episode, debate on our Facebook page centred around the audio problems.

Janet Maude said: "The best programme on TV - again. So why does it have the worst sound, it's a shame they haven't sorted it out!"

Christine Owen said: "I agree great acting but why all the mumbling?"

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Carrie Hackett said: "Sound is awful... but when title music comes on, it's fine - have had to have sub-titles on both episodes."

And Jenny Ewing said: "I totally agree. I can't get into it cos I can't blummin' hear it. So frustrating!!"

What do you think to the BBC's explanation? Let us know in the comments below.