Playing music over movies causes them to sync

Hacker News

Hey HN! I've been wanting to discuss this for some time now and I think I have enough evidence at this point that I can safely talk about it. I've been experimenting with playing music over movies and noting the effects. They seem to sync up, and the movie becomes a music video of the song. I am not sure if it matters who watches the videos but I feel this may affect the final result. As an example where this is very noticeable is here at 20:55: https://x.com/KyleSerbov/status/2044696810095255732 I have never heard of anyone really talking about this, so I am curious to see what you guys think of it. I often wonder if the filmakers would be interested in seeing my recordings of their films. I really like the visualiser the guy does at 2:22 here: https://x.com/KyleSerbov/status/2046164265502212137 I have found it even works when the music is backwards. Here is another example: https://www.youtube.com/watch?v=w40MXiiXosY Please note this video is region blocked in Australia, Japan, New Zealand, United Kingdom.

Visit product View on Hacker NewsApr 25, 2026

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Indie HackersFits the IH revenue-focused audience · Missing: supports, reddit linkedin, podcasting

72%72% predicted probability of success on Indie Hackers, based on ML models trained on real launch data.

best fitHighest predicted score across all platforms for this description.

Product HuntOn track for Day 1 leaderboard · Strong signals: new, visual, recordings · Missing: mac, agents, macos

63%63% predicted probability of success on Product Hunt, based on ML models trained on real launch data.

TrustMRRFits verified-revenue profile · Strong signals: video · Missing: mobile apps, ios, personal

58%58% predicted probability of success on TrustMRR, based on ML models trained on real launch data.

Hacker NewsStrong engagement from HN community · Strong signals: ide, io · Missing: https docs, excited, just released

53%53% predicted probability of success on Hacker News, based on ML models trained on real launch data.

nativeThis product was originally launched on this platform.

AppSumoMay struggle as an AppSumo deal · Missing: plus, platform, intuitive

40%40% predicted probability of success on AppSumo, based on ML models trained on real launch data.

Acquire.comPre-revenue stage for this audience · Missing: arr, mrr, revenue

15%15% predicted probability of success on Acquire.com, based on ML models trained on real launch data.

BetaListMay not resonate with beta-testers · Missing: web3, chat, crypto

2%2% predicted probability of success on BetaList, based on ML models trained on real launch data.

Incorrect prediction on native model

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