Standard vs. SDH: Which ADA Caption Type Do You Need?

Disability Pride Month is a good time to ask a question most event organizers and webinar hosts have never fully answered: what does it actually mean for captions to be ADA compliant, and are the captions you’re producing right now meeting that standard?

Most people assume captions are captions. They’re not. There’s a meaningful difference between Standard Captions that meet ADA requirements and Premium SDH Captions that meet both ADA and FCC requirements. Getting that distinction wrong has real consequences depending on who’s producing your content and who’s watching it.

What does ADA-compliant captioning require?

ADA-compliant captions need to be accurate, synchronized, complete, and properly placed. The Americans with Disabilities Act requires that people with disabilities have equal access to the content being presented. For video and recorded media, that means captions that reflect the actual words spoken, appear at the right time, cover all dialogue and relevant audio, and don’t obstruct the visual content.

Standard Captions fulfill this requirement. They’re the baseline for any organization that records webinars, training videos, event coverage, or educational content and makes that content available to the public or to employees.

What Standard Captions don’t do is meet the additional requirements the FCC imposes on broadcast and cable television programming. That’s a different standard, and it requires more.

What is the difference between Standard Captions and Premium SDH Captions?

Standard Captions cover dialogue and spoken audio. Premium SDH Captions add non-speech elements like sound effects, speaker identification, and ambient audio descriptions.

SDH stands for Subtitles for the Deaf and Hard of Hearing. Premium SDH Captions are designed to give a deaf or hard-of-hearing viewer the full context of what’s happening on screen — not just what’s being said, but who’s saying it, what’s happening in the background, and how the audio environment shapes the meaning of the content.

If a presenter laughs before answering a question, Standard Captions skip that. Premium SDH Captions note it. If ambient noise or background music affects the tone of a scene, Standard Captions cover the dialogue. Premium SDH Captions describe the audio context as well.

For broadcast programming and content distributed through cable, satellite, or streaming platforms that fall under FCC jurisdiction, Premium SDH Captions are the required standard. For most webinars, recorded events, and training content, Standard Captions are sufficient to meet ADA requirements.

Who actually needs Premium SDH Captions?

Organizations producing content for broadcast, cable, or regulated streaming distribution need Premium SDH Captions. Everyone else producing recorded content for general or internal use typically needs Standard Captions.

The practical question is where your content lives and who’s required to access it. A corporate training video that employees watch on an internal platform needs ADA-compliant captions — Standard Captions cover that. A documentary that runs on a cable network needs FCC-compliant captions — that’s Premium SDH.

Where it gets less obvious is content that crosses both contexts. A webinar recorded for internal use and later licensed for broadcast distribution would need to meet the higher standard at the point of broadcast. An entertainment or media company producing original content for streaming platforms should confirm what captioning standard their distribution agreement requires before production.

If you’re not sure which standard applies to your content, the safer and more thorough choice is Premium SDH. It meets both sets of requirements and gives your audience more context regardless of what the regulation requires.

What happens when captions are wrong or missing?

Missing or inaccurate captions expose organizations to ADA complaints, federal investigations, and civil lawsuits — and they leave deaf and hard-of-hearing viewers without access to content they’re legally entitled to.

The legal exposure is real. The Department of Justice has taken enforcement action against organizations with inaccessible digital content. Federal agencies and federally funded organizations face additional requirements under Section 508 of the Rehabilitation Act. Educational institutions receiving federal funding operate under Title II and Title III requirements that explicitly cover digital accessibility.

The more immediate problem is simpler: captions that are wrong don’t work. Auto-generated captions that mishear a speaker’s name, drop a sentence, or fail to sync with the audio aren’t providing equal access. They’re providing the appearance of it. For someone who relies on captions to follow the content, an inaccurate transcript is the same as no transcript.

Human-produced captions are more accurate because a human listened to the audio, understood the context, and made decisions about ambiguous words, names, and terminology that an automated system would guess at. That’s the difference that matters for compliance and for your audience.

How do you choose between Standard Captions and Premium SDH Captions for your content?

Start with where the content is distributed and who the audience is, then choose the standard that covers both.

For most webinars, online events, training videos, and recorded conference sessions: Standard Captions. Speechpad offers Standard Captions at $2.50/min for 48-hour turnaround, $2.00/min for 72-hour turnaround, and $1.50/min for a 1-week turnaround.

For broadcast, cable, or streaming content with FCC compliance requirements, or any situation where you want to provide the fullest possible accessibility experience: Premium SDH Captions at $4.00/min with a 1-week turnaround.

Every caption order at Speechpad is completed by a human transcriber.