To ensure the maximum image quality for your C920 webcam, please follow these troubleshooting steps:
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Connect your camera directly to a USB port or your computer — don't use a hub or docking station.
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Check that your system meets the recommended Dual Core CPU requirements.
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Avoid multi-tasking while capturing video, as this requires a lot of CPU usage.
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Get the latest driver for your camera.
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Improve the lighting conditions in the room.
To get better image quality when chatting over an IM application such as Skype, Microsoft Teams, Zoom, or Google Meet:
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Make sure you've met all of the requirements listed above.
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Check your internet connection speed (http://www.speakeasy.net/speedtest). You need at least 384kps for uploading and one megabit for downloading.
NOTE: Your internet speed may not be what your internet provider says it is, or you may be using the internet during a period of heavy traffic.
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Try using a different IM application — it may provide better results.
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Consider that the image quality problem could be with the sender's computer rather than your own.
NOTE: If you don't own a high-speed or USB 2.0 camera, your image quality may never be as good as a camera with USB 2.0 capabilities.