When installing an audio/video system, there are various sources of latency in the chain, both for audio and video.
To get audio and video in sync, you usually have to compensate by delaying one of the two. I understand this is called "lipsync" in the industry, because audio and video not being in sync is especially annoying in speech segments.
Getting the compensation right is of course possible 'by ear'/'by eye', but it would be much nicer to be able to measure it.
It should be relatively simple to achieve this with a 'calibration video' and an accompanying android app: trigger a video flash and audio bleep at regular intervals, and have an app that records a short video+audio fragment and measures the delay between the 2 signals.
Is anyone aware of such an app?
Completely and utterly unrelated.
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