Query: Throughout Zoom video calls, my display screen picture follows my actions slowly. If I transfer my head or converse, there’s generally a delay of two seconds or extra earlier than it occurs on my display screen. (This didn’t occur throughout a Microsoft Groups video name.) Different individuals within the Zoom assembly say they don’t have the identical downside. I’ve up to date Zoom and my Home windows 10 PC, however nothing helps. What’s incorrect? — P.M., Eden Prairie, Minn.
Reply: The potential causes embrace your property community, your web connection or the Zoom video-calling service — or perhaps all three.
There all the time shall be some time-lag issues on video calls on account of sign processing and web congestion points (Microsoft Groups additionally has had lag time points.) However your comparatively lengthy Zoom delays, and the truth that others in your Zoom name don’t expertise them, are uncommon.
The very first thing it’s best to do is verify the speeds of your web connection (decided by your web service supplier) and your property community (decided by its connections).
Check your web pace at Speedtest (tinyurl.com/y3kon7nl), nPerf (tinyurl.com/y5utxtf5) or Comparitech (tinyurl.com/ybww67jl).
For one-to-one video calls, Zoom requires that you’ve 0.6 megabit add and obtain speeds for primary video, and 1.2 to 1.eight megabit speeds for high-definition video. Group video conferences require larger speeds (see tinyurl.com/hpjtc98).
Modify your property community. In case your Wi-Fi is gradual, it could actually add delays to a video name. Attempt utilizing a wired connection between your pc and modem to hurry issues up.
For those who should use Wi-Fi, transfer your pc nearer to your Wi-Fi router to cut back time lag (Wi-Fi sign power is weakened by distance and boundaries equivalent to partitions.) Alternatively, you should buy a wi-fi router with a stronger sign or a Wi-Fi extender that may broaden the vary of your present router.
If the lag time is brought on by Zoom, there are some issues you may repair and a few you may’t.
You’ll be able to modify the time of day you employ Zoom. The service has been experiencing excessive demand from individuals working at dwelling in the course of the day. In consequence, you may expertise much less lag time in case you use Zoom throughout off-peak hours.
Until you pay for Zoom service, you may’t maximize the way in which Zoom connects worldwide video calls. In consequence, throughout a free worldwide name you could be a lot farther from the Zoom regional information heart getting used than the opposite contributors are. That might trigger time lag for you, however not others (see tinyurl.com/ycqgnz2v).
Query: After I watch motion pictures on my 55-inch Samsung sensible TV, I generally get black bars on the prime and backside of the display screen. Why doesn’t the TV reformat the pictures to make them full display screen? — D.P., Andover, Minn.
Reply: The TV is opting to present you a nondistorted image, which works in your favor.
Many motion pictures have been filmed in several image shapes, referred to as “facet ratios.” If a film’s facet ratio doesn’t suit your TV display screen, you may both watch it usually on a partial display screen (with black bars) or have the image stretched or cropped to suit your full display screen (see tinyurl.com/y9q35czu).
Readers can write to Alexander at Tech Q&A, 425 Portland Ave. S., Minneapolis, Minn. 55488-0002; e mail: firstname.lastname@example.org. Embody a full title, metropolis and cellphone quantity.