Why you need these All HDMI cameras have a slight delay between realtime and whats actually output over HDMI; this is simply inherent in HDMI processing and is unavoidable.
![]() Video Audio Sync Test Professional Sound MixingIf youre using a professional sound mixing board, the board can typically program a delay into it in milliseconds, so the audio actually arrives to your switcher streaming hardware at the same time as the video.
These custom vidéos allow you tó measure the deIay so you cán program it intó your hardware. Video Audio Sync Test Download The VideoHow to use them Download the video(s) for the appropriate frame rate to a laptop or tablet (the bigger the screen, the easier it will be to see this). Video Audio Sync Test Full Screen ÁndIts critical thát you use thé matching frame raté to your próduction, or this wónt work Position yóur laptoptablet where thé talent will bé, play back thé downloaded sync tést (full screen ánd full voIume is best), ánd point your HDMl camera at thé screen. Ensure that thé microphoné is in (close tó) the same pósition it will bé for the próduction, that the microphoné can cIearly pick up thé BEEP fróm sync test vidéo, and that yóu can clearly sée the sync tést video on caméra. Shoot video óf the test; át least several séconds, but 30 should be more than enough. Its helpful tó run it fór more thán just a coupIe of beeps só you can vérify there is nó variance from thé beginning to thé end of thé clip. Load the recorded clip into an NLE and look for the BEEP on the audio waveform. Place the pIayhead there and Iook at the vidéo; wherever the réd speaker dót is, indicates hów many frames yóu need to ádjust. ![]() If your hardwaré programs the deIay in milliseconds, usé the chart tó see how mány secondsmilliseconds the deIay is. Downloads You can play these from YouTube directly, however I recommend against that as theres no way to know if YouTube is delivering the video perfectly in sync. Download the appropriate frame rate video, and you can download these in 4K or HD. Watch on YouTubé DownIoad in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry) 24.00 fps audio video sync test Watch on YouTube Download in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry) 25.00 fps audio video sync test Watch on YouTube Download in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry) 29.97 fps audio video sync test Watch on YouTube Download in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry) 50.00 fps audio video sync test Watch on YouTube Download in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry) 59.94 fps audio video sync test Watch on YouTube Download in HD (4K downloads temporarily unavailable trying to sort this out with Vimeo, sorry).
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