Compression and decompression create a noticeable delay. But its bandwidth is narrow, less than a cable, so it requires audio to be compressed. Bluetooth is about as fast as cables, which is why it works without delay for keyboards, mice, and gamepads. Also, sometimes video and audio tracks have different durations and play at different speeds, which makes perfect sync impossible, especially when the media is one or more hours long.īluetooth audio hardware is another possible desync source. Obviously, it’s not as easy when you’re viewing a desynchronized stream on the internet. This can be fixed in most modern media players by adjusting the audio delay. In this case, the creator of the video didn’t bother to synchronize the tracks. Generally, ways to synchronize audio and video are the same for all for them, but it’s useful knowledge either way.įirst of all, it could be a problem with the video you’re watching. There are three common causes for audio sync problems.
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