Etchv vs Lessong

Add an invisible watermark to images, PDFs and video, then detect it to see which copy was shared. Forensic watermarking API with a free trial. Hello HN!The inspiration for Etchv came directly from friends who raised concerns about the growing ease of unauthorized media copying without attribution. To address this, Etchv embeds an invisible watermark inside images, PDFs, or short videos that survives modifications like screenshots, format changes, and file compression.You can try it on our homepage without signing up. There's also a live demo where a watermarked PDF page gets screenshotted and the watermark ID is still successfully recovered: https://etchv.com/demo/traceInstead of training a model from scratch...

Turn any song into a language lesson: each lyric line is spoken, then translated, over an instrumental loop of the song, followed by the real song. - eschnou/lessong A CLI that turns a mp3 into a language lesson with clearly spoken words and subtitles. This fully automated pipeline mimicks an old radio show called 'Plan Langue' popular for teens in the 80s to learn english. Check the video demo in the readme.