4K / 8K

Workflows, equipment, and technology breakthroughs. Discover who is using 4K/8K and why. Understand the theory and practical significance of providing more pixels, higher frame rates, and bigger and better color space.

Recent 4K / 8K Content

Microphones: Part 1 - IntroductionMay 6th 2021 - 09:00 AM

In this new series John Watkinson looks at all aspects of microphones, including how they work and how they don’t work.

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Practical High Dynamic Range (HDR) Broadcast Workflows - Part 2May 4th 2021 - 09:00 AM

There is a school of thought that suggests increasing the brightness through the contrast control on a television will give a higher dynamic range. However, this doesn’t necessarily increase the contrast ratio. Quantization noise is the enemy of dynamic range and increasing brightness in a system with a low bit depth makes quantizing banding obvious. When banding occurs, the brightness must be turned down to remove it or, the bit depth should be increased.

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Practical High Dynamic Range (HDR) Broadcast Workflows - Part 1April 27th 2021 - 09:30 AM

HDR is taking the broadcasting world by storm. The combination of a greater dynamic range and wider color gamut is delivering images that truly bring the immersive experience to home viewers. Vibrant colors and detailed specular highlights build a kind of realism into broadcast productions that our predecessors could only ever have dreamed of.

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The World Of OTT (Business Pt2) - Telco Access Networks (& The Growth Of OTT)April 27th 2021 - 09:00 AM

Telco fixed access networks are “the last mile” to homes and commercial buildings. They play a key role in the delivery of OTT Video, and are undergoing big changes to support its growth. Telco fixed access networks were originally built in the 19th century to deliver telegraph services, evolving during the 20th century into telephone services. Today they provide vital telecommunications services supporting all aspects of a nation’s life including government, business, education and entertainment. Companies in this sector include the likes of British Telecom, Telecom Italia and AT&T. Over the last 30 years, the voice-first PSTN network has evolved to support data services over broadband, and today telco’s are deploying new data-first access networks.

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Home makes it easy to set up cloud-hosted deployments, whether they are hosted locally, remotely, or even at a third-party data center.

Lawo Unveils New Home For Managing And Securing IP InfrastructuresApril 26th 2021 - 10:30 AM

While many professionals have come to understand how to configure IP-based infrastructures to handle the distribution of audio and video files, managing specific devices on the network has been extremely complex, at best. Recognizing this, Lawo has developed a new software management platform called Home that makes it easy to set up, manage and benefit from the flexibility, scalable nature and signal-agnostic design that comes with IP infrastructures.

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HDR: Part 23 - DOPs: How Useful Is The iPhone Really For Professional Production?April 26th 2021 - 09:00 AM

We’ve heard the hype, and I admit I’ve contributed my fair share. The iPhone is able to capture impressively sharp, high-resolution images that stand up to critical examination even when magnified and viewed on a 20-meter cinema screen. The iPhone’s onboard software compensates for the most egregious image defects, applying on-the-fly color correction, noise reduction, and broad optical compensation that eliminates chromatic aberrations, barrel distortion, and a host of other things, from what is, after all, an exceedingly modest lens.

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New additions to the Prism family of test instruments supports both local and remote production monitoring up to 8K HDR.

Telestream Emerges Stronger Through Acquisitions, Unveils New TechnologyApril 20th 2021 - 10:30 AM

Coming off a whirlwind of three new acquisitions in the past six months, Telestream said it has carefully navigated the past year and emerged stronger than ever. The company actually increased profitability in a time of challenge for many others in the industry.

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Digital Audio: Part 10 - Adjusting LevelsApril 19th 2021 - 09:00 AM

Gain control in digital audio is essentially a numerical model of the same process in the analog domain.

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