ALERT

[LAST CHANCE] Data Layer: Modern Business, Defined

High-Definition Downconverter (HD Downconverter)

Definition - What does High-Definition Downconverter (HD Downconverter) mean?

A high-definition (HD) downconverter is an electronic device that converts HD video signals into standard-definition video, which can then be viewed on a conventional television or older computer monitor, or can be used for recording. The HD downconverter is able to do the downscaling of video signals with minimal loss in quality as well as minimal blurring, aliasing and any conversion noise.

High-definition downconverters are also known as HD Serial Digital Interface (HD-SDI).

Techopedia explains High-Definition Downconverter (HD Downconverter)

A high-definition downconverter is able to convert HDTV signals, often 720p and 1080p, into standard-definition signals (480p) and more or less maintain quality. These devices, depending on the model, can automatically sense the aspect ratio of the HDTV input signal and then convert appropriately to the suitable SD aspect ratio by adding letterbox or pillarbox, or cropping and zooming depending on the desired broadcast output. These devices can have multiple outputs such as simple SD, composite and can even separate audio and video signals. Some might use these devices for recording HDTV signals into the smaller DVD format.

The main users of HD downconverters are TV stations or broadcasters who might still support subscribers that do not own HDTVs, so they need to also be able to provide standard definition broadcasts.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.