HUNDREDS more viewers have complained about BBC drama Jamaica Inn despite the corporation saying it had adjusted sound levels "to address audience concerns" after viewers complained of being unable to hear some of the dialogue.

A total of 252 people complained after the second episode last night, following the 546 who complained after Monday night's opening episode, with viewers saying they had to switch on the subtitles or turn up the volume to the maximum setting to understand what was being said.

A BBC spokeswoman apologised and said: "We are adjusting the dialogue levels in episodes two and three to address audience concerns so they can enjoy the rest of the drama and would like to apologise to those viewers who were affected."

The television adaptation of Daphne du Maurier's classic novel, starring Downton Abbey actress Jessica Brown Findlay, initially pulled in 6.1 million viewers but has lost 1.6 million since then.

Emma Frost, who penned the screenplay, suggested that a technical fault, rather than the way that the cast delivered the lines, was to blame.