Tektronix, a market leader in broadcast video testing, monitoring, and analysis solutions, demonstrated at the 2014 American Radio, Television and Equipment Exhibition how its latest solutions can help broadcasters respond to ongoing challenges related to ensuring program image and sound quality.

With the emergence of new ways of viewing content, new ways to introduce errors into content have also emerged. Broadcasters need to ensure the quality of their content, which runs through the entire process of content production, post-production and transmission to viewers. To help content creators and broadcasters produce high-quality content in order to adapt to the emergence of new technologies, services and viewing platforms, Tektronix exhibited many of its solutions at the exhibition. The theme of the exhibition is "Ensuring content quality from start to finish." start to finish).

Highlights on display include video quality monitoring for cloud-based quality control (QC), adaptive bit rate (ABR) content, deep HEVC / H.265 analysis solutions, and convenient waveform monitoring with physical layer measurement capabilities The latest technology of the instrument. NAB participants can see demonstrations of these and other Tektronix products and discuss their quality needs with Tektronix experts.

Cloud-based QC through QCloud

Tektronix meets the QC needs of organizations running file-based workflows on cloud infrastructure through its QCloud cloud-based quality control (QC) software subscription platform. QCloud is the first cloud-based QC solution that can meet the needs of the production, post-production, broadcast, and online video service markets that run file-based workflows on Amazon Web Services (AWS) and other cloud platforms.

Processing content through QC software is standard practice for all companies involved in program production and distribution, but QC processing is a computationally intensive task and requires a high-cost solution. QCloud overcomes this problem, enabling customers to replace upfront capital expenditures with usage-based operating expenses. Regardless of the size, QCloud users can adjust the system size and cost of ownership to meet budget and QC requirements.

Using Sentry ABR to ensure the quality of OTT services

Sentry ABR uniquely enables broadcasters and content creators to ensure that all of their OTT video assets are intact and can be used for broadcast immediately at the request of viewers. Broadcasters and content creators are increasingly adopting OTT transmission in order to be able to take advantage of the multi-screen TV Everywhere service to directly face consumers. The key to OTT transmission is to use ABR continuous broadcasting to adapt to the inherent bandwidth fluctuations of the wired and telecommunications networks consumers use to receive OTT content.

A two-step process can be used to ensure the quality of OTT services. The first step is to use the Sentry digital content monitor to identify the quality of experience (QoE) errors in the program. The program here is in the H.264 format suitable for decoding ABR content. If the source content is in an uncompressed format, a Tektronix waveform monitor can be used to ensure the quality of the ingested content. For on-demand content, the Tektronix file-based QC tool Cerify is used to verify that the on-demand content is error-free and is properly prepared for packaging. The next step is to use Sentry ABR to confirm that all OTT program content has been properly packaged and that the correct content has been transmitted for the subscription. This step is very important, because the transmission of wrong content will seriously damage the user experience. For example, if content that requires 1MB of bandwidth is erroneously sent when the network conditions only support 500KB of bandwidth, the program will not be played or interrupted.

A convenient WFM2300 waveform monitor for installation and maintenance applications

As a member of the award-winning Tektronix waveform monitor product line, the portable WFM2300 is very suitable for installation and maintenance applications due to its features, functions, and excellent convenience. Features include enhanced eye diagram and jitter measurement capabilities and cable simulator margin testing. The cable simulation and margin test functions are unique to Tektronix waveform monitors and can help cable operators determine the coaxial cable margin of their networks to ensure that they do not reach the "digital cliff", which means that the transmission error rate increases significantly and Content quality is significantly affected.

Users can take advantage of WFM2300's many features and functions-including 3G-SDI format support, ANC data analysis, optical interface with SFP (small pluggable) module, Dolby E metadata monitoring and loudness meter-to follow their It can be further customized for specific needs.

ECO8000 and ECO8020 help ensure powerful facility timing and synchronization performance

Tektronix ECO8000 and ECO8020 automatic switchers cooperate with a pair of SPG8000 master synchronization and master clock reference generators to form a highly reliable synchronization generator system for modern broadcasting, mobile OB trucks and post-production facilities.

The ECO8000 and ECO8020 hot-swappable redundant dual power supplies minimize the risk of loss of synchronization caused by power failure. In addition, the scalability of the ECO8000 and ECO8020 also allows customers to configure their sync generator systems to meet specific application needs without increasing the cost of unnecessary ECO channels.

Analysis of HEVC (H.265) code stream with MTS4000 MPEG test and analysis system

The HEVC (High Efficiency Video Decoding) of the MTS4000 MPEG test and analysis system provides in-depth basic bitstream analysis capabilities to help device manufacturers accelerate time to market and optimize their use in mobile video, OTT video, and 4K / Ultra HD (ultra high definition) applications The encoding efficiency of the next generation encoder. Content providers and distributors can use MTS4000 to evaluate the performance and interoperability of their HEVC devices to ensure high image quality.

Several new features related to HEVC are added to MTS4000, including decoding and displaying HEVC streams with a resolution of up to 4K, superimposing coding units (CU), prediction units (PU), transform units (TU), and macro blocks ( macroblock), slice, tile, and motion vector. All these functions are also available as stand-alone software products (MTS4EAV7 with option HEVC).

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