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Video Recording

Computers can now display television and film-style video clips and streaming media, because of increased processor speed, storage capacity, and broadband access to the Internet. Common computing hardware can now be used to capture, store, edit, and transmit television and movie content, as opposed to older analog technologies such as recording tape.

Video storage

The term digital video commonly refers to several storage formats such as including DVD, QuickTime, and MPEG-4. Video can be recorded and transmitted in various physical media: on magnetic tape when recorded as NTSC electric signals by video cameras, or in MPEG-4 or DV digital media when recorded by digital cameras.

Quality of video essentially is based on the capturing method and storage used. Digital television (DTV) with higher quality than earlier television formats and has become a standard for television video.

Display resolution

Common computer and TV display resolutions.The size of a video image is measured in pixels for digital video, or horizontal scan lines and vertical lines of resolution for analog video. In the digital domain (e.g. DVD) standard-definition television (SDTV) is specified as 720/704/640480i60 for NTSC. In the analog domain (TV signals for 20 years), the number of visible scanlines remains constant (486 NTSC) while the horizontal measurement varies with the quality of the signal: approximately 320 pixels per scanline for VCR quality, 400 pixels for TV broadcasts, and 720 pixels for DVD sources. Aspect ratio is always the same because of non-square "pixels".

New high-definition televisions (HDTV) are capable of resolutions up to 19201080p60, which is 1920 pixels per scan line by 1080 scan lines at 60 frames per second.

Aspect ratio

All popular video formats are can be described by a ratio between width and height. The screen aspect ratio of a traditional television screen is 4:3, or about 1.33:1. High definition televisions use an aspect ratio of 16:9, or about 1.78:1. The aspect ratio of a full 35 mm film frame with soundtrack is 1.375:1.

Recommendation for church Video Recording

Generally the recorded church video will be used for large screen replay, transmission to other parts of the church campus or placed on a DVD. To minimumize cost and provide flexibility a MPEG 4 video format is recommended. The best choice for a camera is one that has:
  • IP output to allow the video to be sent out on the church network as MPEG4 to be captured on a harddrive
  • IP output will also allow the church to place the video on their website for live streaming
  • The MPEG4 video captured on the hardrive can be edited after the service with inexpensive software
  • The camera should also output composite video or better component video to be sent to the projectors during the service
  • A optical zoom lens of 16 to 1 is recommended
  • If the camera is mounted remotely Pan and Tilt capablilty is needed. Many remote camera today have software with the camera that allows remote up down and right left movement (pan and tilt).

Camera location

  • If one camera is purchased the rear of the church is best. Locate the camera in the A/V booth. A better choice is 10 feet off the floor and run remotely.
  • The second camera needs to run remotely and be to the left or right of the altar platform. This is commonly used for weddings and any activity where the person comes to the altar or pulpit area and faces away from the general church members.