A recent study has uncovered that more than half of all television viewers are resorting to subtitles due to widespread issues with mumbling actors and poor sound quality in modern films and dramas. The research indicates that 51 per cent of viewers believe sound quality and mumbling on televisions have deteriorated to unprecedented levels, a figure that remains consistent across all age demographics.
Prevalence of Subtitles
The findings show that 60 per cent of viewers regularly activate subtitles for certain programmes, while one in four keep them on for most content, and 13 per cent have subtitles enabled at all times. This trend follows a series of BBC dramas, including Sherwood, The Jetty, Jamaica Inn, and Happy Valley, which generated thousands of complaints regarding mumbling and indistinct audio.
Root Causes of the Issue
Mumbling on television has become a widespread problem, attributed to a combination of naturalistic acting styles and modern sound mixing that prioritises cinematic background audio over dialogue clarity. The study identified the primary reasons for using subtitles: mumbling actors (31 per cent), excessively loud background music and sound effects (29 per cent), and difficulty understanding regional British accents (26 per cent). Londoners are particularly affected, with 33 per cent struggling to comprehend accents outside their own.
Nearly eight in ten (78 per cent) British TV viewers believe that modern television programmes inadequately cater to deaf or hard-of-hearing individuals, while 51 per cent assert that audio quality has significantly declined compared to older shows.
Historical Context and Responses
In 2016, the BBC's television chief acknowledged that addressing actor mumbling in popular dramas like Happy Valley was 'incredibly hard'. Charlotte Moore, then controller of channels, promised an investigation into sound issues after complaints about the first episode led producers to adjust sound levels. However, Happy Valley executive producer Nicola Schindler suggested viewers were partly responsible, citing incorrect TV aerial tuning.
BBC Director General Tony Hall ordered a formal investigation following hundreds of online complaints. A BBC spokesman previously stated that the real challenge with Happy Valley was the Yorkshire accent, emphasising efforts to maintain audibility while preserving realism. The explanation drew criticism from licence fee payers in the region, who accused the BBC of patronising them with excuses.
In 2013, Lord Hall had earlier remarked on the issue, stating, 'Actors muttering can be testing - you find you have missed a line - you have to remember that you have an audience.'
Technological Solutions
To enhance viewer experience, Narrative Entertainment, owner of Great!, has partnered with Encompass, an AI-assisted subtitling platform. This technology delivers broadcast-ready subtitles faster, more cost-effectively, and with greater accuracy than traditional methods, now available across all Great! channels.
The study coincides with the return of the gripping US thriller series Sue Thomas: F.B.Eye on Great Mystery, inspired by a real-life deaf FBI agent. Kate Gartland remarked, 'Sue Thomas: F.B.Eye is such a remarkable story, and we're thrilled to be bringing it back to UK screens, celebrating what an amazing trailblazer the real Sue Thomas really was.'



