30 checks in Multimodal Content & Media. Automated Its subsection has a live automated checker in the engine.
| ID | Check | Passes when |
|---|---|---|
| 8.4.01 | Validate transcript exists for every audio file | Present |
| 8.4.02 | Validate transcript covers full spoken content | Complete |
| 8.4.03 | Validate transcript accuracy vs actual audio | Accurate |
| 8.4.04 | Validate transcripts include timestamp cues when needed | Present |
| 8.4.05 | Validate transcripts include speaker identification | Identified |
| 8.4.06 | Detect missing, truncated or auto-summarized sections | None |
| 8.4.07 | Detect transcription errors (garbled words, AI mistakes) | None |
| 8.4.08 | Validate transcript formatting clear and readable | Readable |
| 8.4.09 | Validate transcript matches audio tone & context | Matching |
| 8.4.10 | Validate transcript accessible to screen readers | Accessible |
| ID | Check | Passes when |
|---|---|---|
| 8.4.11 | Validate transcript contains key topical terms | Present |
| 8.4.12 | Validate transcript improves AI semantic comprehension | Improved |
| 8.4.13 | Validate entity mentions align with audio content | Aligned |
| 8.4.14 | Detect ambiguous or unclear semantic phrasing | None |
| 8.4.15 | Validate transcript supports embedding-level consistency | Consistent |
| 8.4.16 | Validate transcript aligns with page content topics | Reinforcing |
| 8.4.17 | Detect hallucination-like errors in automated transcripts | None |
| 8.4.18 | Validate transcripts suitable for LLM summarization | Suitable |
| 8.4.19 | Validate transcripts compatible with schema markup (AudioObject) | Compatible |
| 8.4.20 | Compute Audio Transcript NLP Interpretability Score | Finalized |
| ID | Check | Passes when |
|---|---|---|
| 8.4.21 | Validate audio transcripts meet WCAG accessibility requirements | Compliant |
| 8.4.22 | Validate alternative text/audio description available | Available |
| 8.4.23 | Validate transcripts formatted for mobile readability | Optimized |
| 8.4.24 | Validate multi-language transcripts when applicable | Present |
| 8.4.25 | Detect inaccessible transcript placements (hidden, click-only) | None |
| 8.4.26 | Validate transcripts available for user-generated audio | Present |
| 8.4.27 | Validate transcripts compatible with AI accessibility tools | Compatible |
| 8.4.28 | Detect mismatches between audio content and transcript claims | None |
| 8.4.29 | Validate transcript exports (TXT, VTT, SRT) available when needed | Available |
| 8.4.30 | Compute Full Audio Accessibility Score | Finalized |
← 8.3 Video Transcript Availability & Multimodal Accessibility8.5 Structured Media Metadata (Audio/Video/Images) →
A Deep Audit scores every check here that applies to your page, then an AI pass of up to 150 checks. Included on Pro and Ultra, or $9 for one audit.
See plansMachine-readable: catalog totals and the full catalog as JSON (IDs, section, weight, status).