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Guitar chord karaoke with Vamp, Chordino, and FFmpeg (2022)
A proof-of-concept using Vamp, Chordino, ImageSharp and ffmpeg to add live guitar chord charts to karaoke videos
If you’ve not worked with ffmpeg before, it’s a command-line application that can read, write, convert and stream just about every audio and video format ever invented. I’m then using a .NET library called FFMpegCore to read those frames directly from memory and render them into the output video stream. That’s a pretty convincing proof of concept… but there’s a world of difference between doing it once, with one clip, and being able to churn out the 50+ tracks you need to actually run a karaoke night.
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