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SMARTIDIOM

Services · Multimedia & accessibility

Some watch, some listen, some read.
Your message reaches them all.

Subtitling in more than 100 languages, dubbing, voice-over, SDH, audio description and sign language, with studio quality and the linguistic side of European Accessibility Act compliance.

ISO 9001 · 17100 · 1858737 countries served98%+ on-time deliveries<0.02% post-delivery revision rate
DUBBING & VOICE-OVER
VIDEO & INTERACTIVE CONTENT LOCALISATION
LEGAL TRANSCRIPTION
AUDIO DESCRIPTION FOR BLIND & LOW-VISION AUDIENCES
SIGN LANGUAGE INTERPRETING
ON-SITE & REMOTE INTERPRETING
VIDEO & MULTIMEDIA PRODUCTION
SUBTITLING
SUBTITLES FOR THE DEAF & HARD OF HEARING (SDH)
DUBBING & VOICE-OVER
VIDEO & INTERACTIVE CONTENT LOCALISATION
LEGAL TRANSCRIPTION
AUDIO DESCRIPTION FOR BLIND & LOW-VISION AUDIENCES
SIGN LANGUAGE INTERPRETING
ON-SITE & REMOTE INTERPRETING
VIDEO & MULTIMEDIA PRODUCTION
SUBTITLING
SUBTITLES FOR THE DEAF & HARD OF HEARING (SDH)
EAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITYEAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITYEAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITYEAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITYEAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITYEAA 2025WCAG 2.2SDHAUDIO DESCRIPTIONSIGN LANGUAGE100+ LANGUAGESSTUDIO QUALITY

Does your video need to be accessible to every audience, without exception?

We could try to explain it to you.
But we'd rather show you.

LIVE DEMOA subtitles for the deaf and hard of hearing (SDH) project, happening right in front of you
SMARTIDIOMwebinar_seguranca_v2.mp4 · SDH subtitling [en-US]SDH MODE
● REC
00:00:00
TimeSubtitleCPS
Waveform · audio track 1
ISO 9001 SMARTIDIOM CERTIFIED

What we do for you

Multimedia & accessibility services

Dubbing & voice-over · SMARTIDIOM

DUBBING & VOICE-OVER

Professional dubbing and voice-over by native voices, recorded and mixed to studio quality.

Video & interactive content localisation · SMARTIDIOM

VIDEO & INTERACTIVE CONTENT LOCALISATION

Localisation of video, e-learning and interactive content, adapted to the language and culture of each market.

Legal transcription · SMARTIDIOM

LEGAL TRANSCRIPTION

Legal transcription of depositions, hearings and recordings, with evidentiary rigour and confidentiality.

Audio description for blind & low-vision audiences · SMARTIDIOM

AUDIO DESCRIPTION FOR BLIND & LOW-VISION AUDIENCES

Audio description for blind and low-vision audiences: what's on screen, narrated and synchronised with the image.

Sign language interpreting · SMARTIDIOM

SIGN LANGUAGE INTERPRETING

Portuguese Sign Language interpreting, in a video window or live, by qualified interpreters.

On-site & remote interpreting · SMARTIDIOM

ON-SITE & REMOTE INTERPRETING

Simultaneous and consecutive interpreting, on-site and remote: events, meetings and webinars.

Video & multimedia production · SMARTIDIOM

VIDEO & MULTIMEDIA PRODUCTION

Video and multimedia production, from script to final masters, ready for every platform.

Subtitling · SMARTIDIOM

SUBTITLING

Professional video subtitling in more than 100 languages: subtitles translated, synchronised and split by meaning.

Subtitles for the deaf & hard of hearing (SDH) · SMARTIDIOM

SUBTITLES FOR THE DEAF & HARD OF HEARING (SDH)

Subtitles for the deaf and hard of hearing (SDH): sounds described and speakers identified, for when your video has to meet the European Accessibility Act.

From subtitled video to accessibility

Three reaches: choose how far your message has to go.

Professional subtitling

To reach other markets
  • Subtitles translated and synchronised
  • Split by meaning, not by line
  • Your brand's style and timing
  • A dedicated PM managing the project
  • Traceability: who translated, when, and which version
100+ LANGUAGES
MOST POPULAR

+ Voice

For full impact in the market
  • Everything in the previous level
  • Voice-over or dubbing by native voices
  • Studio recording and mixing
STUDIO QUALITY

+ Accessibility

For the linguistic side of the EAA and to reach everyone
  • Everything in the previous levels
  • SDH, audio description and sign language
EAA · WCAG 2.2
See the full comparison of what each level includes →

Not sure which to choose?
Tell us where the content is going and we'll recommend the right level.

CASE STUDY
SERVICE: Multimedia & accessibilityCLIENT: Global oil & gas companyRegional regulations · HSECOMPLETED ✓

Multilingual HSE videos
for the people risking their lives in the field

A safety video campaign translated, subtitled and voiced for the international teams of a global oil company.

01

Client-specific glossaries for technical and safety terminology

02

Voice-over and subtitling with in-context, on-screen review

03

Full regulatory approval in every target market

“Safety compliance ratings improved across all our international sites.”HSE Director · global oil & gas company
Read the full case study →
100%regulatory approval in the target markets
0compliance issues
20+videos delivered ready to publish

Awards & certifications

ISO 9001
ISO 9001
Quality
ISO 17100
ISO 17100
Translation
ISO 18587
ISO 18587
Post-editing
Top 5% Melhores PME
Top 5%
Best SMEs
Top 10 PME do Setor
Top 10
Sector SMEs
Slator 2024
Slator 2024
Boutique LSP
Empresa Feliz 2024
Happy Company
2024

Frequently asked questions

Q1Dubbing or subtitling: which should I choose?
It depends on the audience and the budget: subtitling is faster and cheaper; dubbing has more impact where audiences aren't used to reading subtitles. Many campaigns use both; we'll tell you what works best in your market.
Q2How much does it cost to subtitle a video?
Pricing is per minute of video and depends on the languages, the deadline and the type of subtitles (plain translation, SDH, multiple versions). Send us the video (or just the duration and the languages) and we'll come back with a fixed quote, no surprises.
Q3What are SDH subtitles and how do they differ from normal ones?
SDH (subtitles for the deaf and hard of hearing) go beyond the dialogue: they identify who's speaking and describe the relevant sounds (“door slams”, “tense music”). They're one of the typical accessibility requirements, and we produce them alongside the translated subtitles.
Q4Does the European Accessibility Act apply to my content?
Since 28 June 2025, the European Accessibility Act (EAA) has applied to certain consumer products and services, such as e-commerce, consumer banking and services giving access to audiovisual media, except for microenterprises providing services. If your product or service is covered, we audit the content and handle the linguistic side: SDH subtitles, audio description and sign language interpreting.
Q5Do you do remote interpreting or only on-site?
Both: simultaneous and consecutive interpreting at on-site events, remote interpreting (RSI) for video calls and webinars, and sign language interpreting, on-site or in a video window. Tell us the format of your event and we'll propose the right setup.
Q6Do you deliver files ready to publish?
Yes: final masters in each platform's formats (broadcast, social media, e-learning, cinema), with subtitles either burnt in or as separate files, whichever you prefer.

Do you work in a regulated industry?

See how we apply this service to your industry, each with its own standards, its own risks and its own real cases.

Life sciencesFintech & financeLegal & patentsDefence & aerospaceEnergy & utilitiesTechnology & SaaS
View all industries →

Want to book a meeting?

Work with a translation agency certified to ISO 9001, 17100 and 18587.
Héber Cruz
Héber Cruz
Leiria
Tiago Cruz
Tiago Cruz
Porto