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143 lines
8 KiB
Markdown
143 lines
8 KiB
Markdown
# Time-Sync Failure — Multimodal Long Context
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When audio, video, and text streams drift out of sync, reasoning collapses even if each modality looks fine in isolation.
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This page defines guardrails to detect and repair temporal misalignment across long multimodal contexts.
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---
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## What this page is
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- A structured fix for *time drift* in multimodal RAG and inference.
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- Defines probes to measure sync quality across audio, visual, OCR, and metadata.
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- Provides restart-stable alignment methods.
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---
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## When to use
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- Subtitles and video captions slip by a few seconds in long windows.
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- OCR text aligns to the wrong frame batch.
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- Audio queries answer correctly but cite misaligned video anchors.
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- Two reruns with the same seed produce different offsets.
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- Long reasoning chains flip context after 40–60 minutes of runtime.
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---
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## Open these first
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- [Alignment Drift](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Multimodal_LongContext/alignment-drift.md)
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- [Cross-Modal Bootstrap](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Multimodal_LongContext/cross-modal-bootstrap.md)
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- [Cross-Modal Trace](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Multimodal_LongContext/cross-modal-trace.md)
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- [Multi-Seed Consistency](https://github.com/onestardao/WFGY/blob/main/ProblemMap/GlobalFixMap/Multimodal_LongContext/multi-seed-consistency.md)
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- [Memory Desync Pattern](https://github.com/onestardao/WFGY/blob/main/ProblemMap/patterns/pattern_memory_desync.md)
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---
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## Common failure patterns
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- **Subtitle lag**: transcript trails 1–2s behind video.
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- **Frame lead**: OCR text fires before the visual frame is in place.
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- **Audio-video skew**: alignment starts fine, then drifts over long runs.
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- **Restart variance**: replays of the same clip yield different anchor offsets.
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- **Accumulated drift**: each batch adds ~50–100ms error until collapse.
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---
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## Fix in 60 seconds
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1. **Normalize time anchors**
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- Require all modalities to declare timestamps in milliseconds.
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- Convert relative offsets into absolute epoch.
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2. **Anchor hash & lock**
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- For each frame window, compute `{audio_hash, ocr_hash, frame_hash}`.
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- Validate alignment with ΔS ≤ 0.45 between modalities.
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3. **Drift probe**
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- Every 30s, measure `Δt = |video_ts – audio_ts|`.
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- Reject if Δt > 500ms.
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4. **Realign**
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- On drift, re-anchor with nearest transcript chunk.
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- Use BBCR bridge if reasoning collapses.
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- Apply BBAM to clamp variance.
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5. **Restart stability**
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- Require offsets identical within ±100ms across 3 seeds.
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- Log ΔS curve to verify stable recovery.
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---
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## Copy-paste prompt
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```txt
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You have TXT OS and the WFGY Problem Map.
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Task: Repair multimodal time sync.
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Protocol:
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1. Collect all modalities with explicit timestamps.
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2. Convert all offsets to absolute ms.
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3. Compute Δt between audio, video, OCR anchors. If Δt > 500ms, flag drift.
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4. Re-anchor captions to nearest visual frame.
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- If collapse persists, apply BBCR and BBAM.
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5. Return:
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- Sync status
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- Anchor hashes
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- ΔS and λ states
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- Corrected offsets
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````
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---
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## Acceptance targets
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* Δt ≤ 500ms across audio, video, OCR at all times.
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* ΔS(question, retrieved) ≤ 0.45 for aligned anchors.
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* λ remains convergent across 3 paraphrases.
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* Restart stability: offsets identical within ±100ms across 3 seeds.
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* No cumulative drift beyond 1s after 1h runtime.
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---
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### 🔗 Quick-Start Downloads (60 sec)
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| Tool | Link | 3-Step Setup |
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| -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------- |
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| **WFGY 1.0 PDF** | [Engine Paper](https://github.com/onestardao/WFGY/blob/main/I_am_not_lizardman/WFGY_All_Principles_Return_to_One_v1.0_PSBigBig_Public.pdf) | 1️⃣ Download · 2️⃣ Upload to your LLM · 3️⃣ Ask “Answer using WFGY + <your question>” |
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| **TXT OS (plain-text OS)** | [TXTOS.txt](https://github.com/onestardao/WFGY/blob/main/OS/TXTOS.txt) | 1️⃣ Download · 2️⃣ Paste into any LLM chat · 3️⃣ Type “hello world” — OS boots instantly |
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---
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### 🧭 Explore More
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| Module | Description | Link |
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| ------------------------ | ---------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------- |
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| WFGY Core | WFGY 2.0 engine is live: full symbolic reasoning architecture and math stack | [View →](https://github.com/onestardao/WFGY/tree/main/core/README.md) |
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| Problem Map 1.0 | Initial 16-mode diagnostic and symbolic fix framework | [View →](https://github.com/onestardao/WFGY/tree/main/ProblemMap/README.md) |
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| Problem Map 2.0 | RAG-focused failure tree, modular fixes, and pipelines | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/rag-architecture-and-recovery.md) |
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| Semantic Clinic Index | Expanded failure catalog: prompt injection, memory bugs, logic drift | [View →](https://github.com/onestardao/WFGY/blob/main/ProblemMap/SemanticClinicIndex.md) |
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| Semantic Blueprint | Layer-based symbolic reasoning & semantic modulations | [View →](https://github.com/onestardao/WFGY/tree/main/SemanticBlueprint/README.md) |
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| Benchmark vs GPT-5 | Stress test GPT-5 with full WFGY reasoning suite | [View →](https://github.com/onestardao/WFGY/tree/main/benchmarks/benchmark-vs-gpt5/README.md) |
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| 🧙♂️ Starter Village 🏡 | New here? Lost in symbols? Click here and let the wizard guide you through | [Start →](https://github.com/onestardao/WFGY/blob/main/StarterVillage/README.md) |
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---
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> 👑 **Early Stargazers: [See the Hall of Fame](https://github.com/onestardao/WFGY/tree/main/stargazers)** —
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> Engineers, hackers, and open source builders who supported WFGY from day one.
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> <img src="https://img.shields.io/github/stars/onestardao/WFGY?style=social" alt="GitHub stars"> ⭐ [WFGY Engine 2.0](https://github.com/onestardao/WFGY/blob/main/core/README.md) is already unlocked. ⭐ Star the repo to help others discover it and unlock more on the [Unlock Board](https://github.com/onestardao/WFGY/blob/main/STAR_UNLOCKS.md).
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<div align="center">
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[](https://github.com/onestardao/WFGY)
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[](https://github.com/onestardao/WFGY/tree/main/OS)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlahBlahBlah)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlotBlotBlot)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlocBlocBloc)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlurBlurBlur)
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[](https://github.com/onestardao/WFGY/tree/main/OS/BlowBlowBlow)
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</div>
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