ADR IN UK FILM AND TV: WHEN YOU NEED IT AND HOW A SESSION WORKS.
Industry guide · ADR
By Fitzrovia Post · 13 October 2026
What ADR is
ScreenSkills describes an ADR editor as the person who records the additional dialogue needed to complete a feature film, television drama and sometimes a documentary. ADR stands for automated dialogue replacement and is also referred to as post-syncing: essentially, recording extra dialogue in the studio after the film has been captured. (ScreenSkills)
That definition matters for producers because ADR is not only a rescue tool. It is a planned post-production craft used to finish story, clarity and compliance — then handed to the dialogue and mix stages as clean, synced material.
When productions book ADR
ScreenSkills lists the main practical reasons a production re-records or adds dialogue: (ScreenSkills)
- location sound was unusable because of background noise;
- the script needs to change to improve the story or fill a gap after a scene is cut;
- an actor’s on-set delivery was unclear or contained an error;
- language is too explicit for television, so a child-friendly or pre-watershed version is required;
- a full foreign-language dialogue track is needed;
- a musical performance recorded on location must be replaced by a stronger sung performance in ADR.
UK broadcaster delivery specs underline why clarity is non-negotiable. Channel 4’s DPP file delivery specification (shared technical requirements agreed by DPP broadcasters including the BBC, Channel 4, Channel 5, ITV, Sky, STV and TG4) states that broadcasters receive many complaints about unclear dialogue, and that it is the producer’s responsibility to ensure dialogue is clear, easy to hear and easy to understand for a first-time viewer on consumer equipment. (Channel 4 DPP file delivery specification; Channel 4 Delivery)
How a studio ADR session works
The ScreenSkills profile describes the core technique: a specially equipped studio where the ADR editor can loop the sequence that needs new dialogue. A short sequence is played repeatedly on a screen so the actor can match the original performance in character and lip-sync. ADR sessions are usually attended by the director, who advises the actor and checks the performance. (ScreenSkills)
In practice, a productive session usually needs:
- a locked or near-locked cut with picture and guide audio;
- a cue sheet (or equivalent) listing lines, characters, timecodes and any alternate versions;
- the right microphone and acoustic approach so studio lines can sit beside production dialogue;
- time for multiple passes, not a single “perfect” take;
- clear ownership of selected takes before the session ends.
UK post houses that specialise in ADR also emphasise picture playback, cueing tools (beeps, streamers and visual cues) and delivery of isolated stems ready for the mix — whether the director is in the room or on a remote line. (Soho Sonic; 11C Media; Sound Disposition)
Remote and hybrid ADR
Remote ADR does not change the recording chain so much as where notes come from. London and regional UK facilities describe the same session structure as attended recording: picture reference for timing, producer- or engineer-led cueing, retakes and isolated delivery, with directors, producers or post supervisors joining over a broadcast-grade connection. (11C Media; Soho Sonic)
Common relay methods cited by UK ADR studios include Source-Connect (often Source-Connect Pro), Cleanfeed, ipDTL, SessionLink Pro and Zoom for multi-contributor dial-in. Source-Connect is frequently preferred for ADR because it can carry full-resolution audio and support transport sync for remote playback follow. (11C Media; Soho Sonic; Sound Disposition)
A useful distinction for producers: remote direction into a professional booth is now standard; asking talent to replace finished mix lines from an untreated home room is a different risk. Facilities that run remote ADR still stress picture-locked cueing and a controlled recording space when lines must sit next to boom recordings. (11C Media)
Dialogue clarity and UK loudness delivery
ADR sits inside a wider delivery obligation. The Channel 4 / DPP file specification requires programmes to be mixed to comply with EBU R128. Programme loudness for non-live delivery is −23.0 LUFS ±0.5 LU; for live and as-live it is −23.0 LUFS ±1.0 LU. Maximum true peak must not exceed −1 dBTP (content fails above that); −3 dBTP is recommended. Loudness Range is guidance only: programmes should aim for an LRA of no more than 18 LU, speech in factual programmes should aim for an LRA of no more than 6 LU, and a minimum separation of 4 LU between dialogue and background is recommended. (Channel 4 DPP file delivery specification)
EBU Recommendation R128 likewise sets the target programme loudness level at −23.0 LUFS, with a ±1.0 LU tolerance where that target is not practically achievable (for example live programmes), and states that true peak level shall not exceed −1 dBTP during production. (EBU R128)
Clean ADR does not replace a good mix, but it gives the mixer usable dialogue to place within those loudness and intelligibility rules — especially when location tracks are noisy or inconsistent.
What producers should prepare before booking
- Picture and guide audio. Send a cut the actor can loop to, with sync guide tracks where possible.
- Cue sheet and script versions. List every line, character, timecode, alternate wording and any watershed or international variants.
- Who is directing. Confirm whether the director (or showrunner / supervising sound editor) will attend in person or remotely, and which connection the facility supports.
- Matching production sound. Tell the studio which microphones and perspectives were used on set if you need ADR to blend, not stand out.
- Delivery format. Agree sample rate/bit depth, naming, selected-take layout and whether you need Pro Tools sessions or labelled stems.
- Schedule buffers. Build retake time; ADR is iterative by design.
- Compliance context. Remember UK DPP / EBU R128 expectations for clear dialogue and −23 LUFS programme loudness when you plan pickups and the final mix. (Channel 4 DPP file delivery specification; EBU R128)
Fitzrovia Post provides audio post, picture post, ADR and voice recording from studios in central London. To talk through your schedule and delivery, send us a project brief.
FAQ What does ADR stand for? Automated dialogue replacement. ScreenSkills also calls it post-syncing: recording extra dialogue in the studio after the film has been captured.
Why do film and TV productions need ADR? Typical reasons include location noise, unclear on-set delivery, script changes after picture edits, pre-watershed or child-friendly versions, foreign-language tracks, and replacing a location sung performance with a stronger studio take.
How does an ADR session work? The ADR editor loops a short sequence on screen so the actor can match character and lip-sync. Sessions are usually attended by the director, who advises on performance.
Can ADR be done remotely? Yes. UK facilities routinely run remote or hybrid sessions so directors and supervisors can join via Source-Connect and similar tools while the actor records in a studio with picture reference and cueing.
How does ADR relate to UK broadcast loudness rules? UK DPP delivery specs require clear dialogue and programmes mixed to EBU R128, with programme loudness at −23.0 LUFS (tolerances depending on live or non-live delivery). Clean ADR helps the mixer meet intelligibility and loudness expectations.
What should producers send before an ADR booking? A picture cut with guide audio, a cue sheet and script versions, confirmation of who is directing (in person or remote), notes on matching production sound, and the required delivery format for selected takes or stems.
Sources
- ScreenSkills, “ADR editor” job profile: https://www.screenskills.com/job-profiles/browse/post-production/sound-studios/adr-editor-post-production/
- Channel 4 / DPP, “Technical Specification for the Delivery of Television Programmes as AS-11 Files” (Channel 4 file delivery specification v5.2): https://assets-corporate.channel4.com/_flysystem/s3/documents/2023-03/ProgrammeDeliverySpecificationFile_DPP-Channel4_v5.2.pdf
- Channel 4, “Delivery” (programme management / technical specifications): https://www.channel4.com/4producers/working-with-us/delivery
- EBU R128, “Loudness normalisation and permitted maximum level of audio signals” (2020): https://tech.ebu.ch/docs/r/r128v4_0.pdf
- Soho Sonic, “ADR recording studio in London”: https://www.sohosonic.com/audio-post/adr/
- 11C Media, “Remote ADR Sessions”: https://11c.media/remote-recording/remote-adr-sessions/
- Sound Disposition, “ADR”: https://www.sounddisposition.com/adr