This video demonstrates a practical technique for testing audio delay and lip sync using the HDR10 standard at a 23.976 frames per second (fps) refresh rate. By leveraging the HDR10 metadata to transmit timing information, this method is capable of achieving high precision lip sync measurements, with sub-millisecond accuracy.

Instructions:
1. Pause the video. (which you can do with the pause button or by pressing Space or K).
2. You can nudge the video by a single frame. The first (,) nudges you back a frame in the video. The second (.) nudges you forward one frame.

J and L, by the way, move you 10 seconds at a go.

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