Understanding HDCAM SR Video Production

Posted by , on Aug, 2017

After being unveiled in 2003 HDCAM SR was standardized in SMPTE 409M-2005. It is able to record in 10 bit 4:2:2 or 4:4:4 RGB because it uses a higher density tape. It has a video bitrate of 440 Mbit per second with a data rate of approximately 600 Mbits per second. That higher bitrate over standard HDCAM allows HDCAM SR to capture more of the bandwidth of the 1920×1080 HDSDI signal.

HDCAM Codecs and Compression

Many HDCAM SR VTRs are capable of 2x mode with an even higher video throughput of 880 Mbits per second. That allows for a single 4:4:4 stream using the lower compression rates or two 4:2:2 video streams running concurrently at standard rates. HDCAM SR uses the industry standard MPEG-4 Part 2 codec for compression, expanding the number of audio channels up to 12 at 48 kHz/24-bit. That is 12 channels of audio recorded uncompressed at 24bit sampling. Each channel records sampled AES3 non-audio data with ease, allowing for full spectrum audio enjoyment.

Editing Done Right

HDCAM SR editing is a specialty niche in the production process that allows for the bitrate throughput to remain uncompressed while not disrupting the integrity of the full spectrum signal. By maintaining signal integrity throughout the full spectrum of the video layers are on display for the viewer to enjoy. High bitrate allows the viewer to see details previously missing from older HD standards. HDCAM SR is the standard used in modern TV programming production. As of 2008, most major network shows use HDCAM SR as the master recording medium.

Standard Industry Production Practices

Usually professionals are tasked with HDCAM SR editing due to the highly technical nature of the work. It requires expensive equipment and industry know-how to make the seamless edits while maintaining video quality.  Most television shows outsource production to studio staff that specializes in the task of editing.

If you want to know more about HDCAM SR editing, contact Chromavision. They can be found online at http://www.Chromavision.net.

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Posted by , on Aug, 2017

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