Cited on HN 3 times, 2019–2022, never outright recommendedscore 0
Years with an HN recommendation, 2007–2026
Referenced as the origin of automatic silence-skipping video editing and as a comparison for similar tools.
carykh demonstrates a script that speeds up the silent parts of a video while leaving speech at normal speed, to condense lectures and similar footage. It later became the Jumpcutter tool.
“A YouTuber (carykh) made a video where he explains an algorithm he made to automatically process lecture videos” (HN, 2020)
Time code to the cliffnotes: [this video] Basically instead of speeding up the entire video by 2x for a speed review, he created a script with variable speeding, where the silent bits are speeded up much faster than the talking bits, which means that the end result is much shorter.
Variable-speed script that speeds up silent parts of video
A YouTuber (carykh) made a video where he explains an algorithm he made to automatically process lecture videos by speeding up, condensing and removing parts of the video. [this video]
Algorithm to automatically condense lecture videos
Reminds me of the tool presented in [1], which also shows some interesting applications. Apparently an improved version is now being sold on its own platform [2], but the original Python script is still available on Github [3]. [1] [this video] [2] [link] [3] [link]
Earlier similar tool with interesting applications
Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.
Plays via YouTube's privacy-enhanced embed
3 Hacker News comments
From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.