video-ai-talking — 想做真人口播，又不必自己对着镜头念。上传一段真人出镜视频，写好字幕，本机配音并对口型，合成竖屏 MP4。密钥只留在浏览器里。
Generates lip-synced talking-head videos locally, keeping keys in the browser.
Why this scored 1
every term, weightedEngagement gained per hour since the last capture, against the fastest item on its own source
Whether that velocity is itself speeding up, as a per-hour rate
How many independent communities are talking about the same entity
Decays to zero over 14 days
Subtracted once something is big and old — we rank what's next, not what's peaked
Weights are hand-tuned, not learned — we're calibrating them against realized trends as history accumulates. On a topic's first sighting there's no previous reading to compare against, so acceleration starts from a neutral prior rather than a measurement, and velocity falls back to engagement over its whole lifetime until a second reading exists. Full methodology
Outlook
low confidence · estimate, not a guarantee7-day
~0
range 0–12
14-day
~0
range 0–14
30-day
~0
range 0–19
Signal history
7-day window (free)projected trajectory (estimate, not a guarantee)
Entities
Embed a live signal badge
[](https://www.signalcrest.app/topic/gh%3A1352184016)
Drop this in a README or blog post — it updates automatically as the score moves.