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Subtitling & Video Localization Blog

Guides and insights on subtitling, transcription, and video localization.

Practical guides from the Hello8 team on subtitle formats, transcription workflows, translation best practices, and video accessibility. Whether you work in post-production, localization, or content creation, you'll find actionable advice here.

Analysis

Best Professional Subtitling Services in 2026

An honest comparison of 6 subtitling services for different use cases. From enterprise studios to independent filmmakers, here's how to choose.

March 31, 202610 min read
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Accessibility

SDH Subtitles: What They Are, When You Need Them, and How to Create Them

SDH goes beyond regular subtitles with sound effects, speaker identification, and music cues. Learn when SDH is legally required and how to create it.

March 31, 20269 min read
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Guide

AI Subtitle Review: How It Works and Why It Matters

Manual subtitle review takes 3-4x the video duration. Learn how AI review catches grammar, conjugation, and translation errors with one-click fixes.

March 31, 20268 min read
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Guide

What is CPS in Subtitles? A Complete Guide to Characters Per Second

CPS determines whether viewers can actually read your subtitles. Learn the standards Netflix, BBC, and broadcasters enforce, and how to check your files before delivery.

March 31, 20269 min read
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Compliance

Video Captioning Compliance in 2026: ADA, WCAG & EAA

Three major regulations now require captions on video content. Here's what organizations need to know about deadlines, standards, and how to comply.

March 27, 20269 min read
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Accessibility

Why Captions Matter: It's Not Just About Accessibility

80% of caption users aren't deaf. Captions are a legal requirement, an engagement multiplier, and the baseline for professional video. Here's what every producer needs to know.

March 27, 20268 min read
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Analysis

Using ChatGPT to review your subtitles. The trap.

ChatGPT, Claude, and Gemini can't check timing, reading speed, or translation accuracy. Here's what AI chatbots actually miss when you paste subtitles into a chat window.

March 24, 20267 min read
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Guide

VTT vs SRT: The Complete Guide to Subtitle Formats

Learn the key differences between VTT and SRT subtitle files, when to use each format, and how to choose the right one for your project.

March 24, 20268 min read
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