China OSINT: DouYin Military Activity
December was a strong month on China OSINT — for you, the reader, and for us researching and writing these investigations. Over the month we dropped deep dives on iFlytek's mass-surveillance source infrastructure, CCP village surveillance systems, dark web actor attribution, and PLA unit-number decoding — and we're not done yet.
With China's ongoing military drills around Taiwan, we decided to share a really simple but effective method for working with military video content on Douyin (China's TikTok).
Most Western analysts can't read Chinese. Even fewer can listen to it.
That's a problem — because some of the most valuable open-source intelligence on Chinese military activity isn't in text, which means it isn't searchable. It's in video. Douyin is full of PLA exercise footage, military commentary, and nationalist content that never gets translated.
Step 1: Search Douyin
Go to douyin.com and search. In our case we're following the insights around Taiwan. Filter by 最新 (Latest) to get recent uploads.
Step 2: Download the video
Douyin doesn't let you download directly. What works, as of now: paste the video URL into blog.aitoolwang.com/dy/ and download the MP4.
Step 3: Transcribe with Whisper
Whisper is OpenAI's open-source speech-to-text model. It handles Chinese well.
Military bloggers discuss exercises in detail. Soldiers post from training. Nationalists debate Taiwan scenarios openly. This content is:
- Public — anyone can access it
- Timely — often posted same-day
- Unfiltered — less editorial control than official channels
Chinese video content is no longer a black box, even if you don't speak Chinese. With Douyin + Whisper + LLM translation, a single analyst can process dozens of videos per day.
