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Troubleshooting Home Movie Transfers | |
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Multimedia Suppliers | |
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Techno Mumbo Jumbo | |
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Techno Mumbo Jumbo
• Analog: Method of representing data using a continuously varying electrical voltage. Analog video degrades each time it's copied or transmitted from one piece of equipment to another.
• Audio mixer: Device used to select and vary the volume of different audio signals from various sources.
• CD-ROM: Compact Disc-Read Only Memory, capable of holding up to 650 MB of data.
• CD-R: Recordable CDs; you can record on these, but only once.
• CD-RW: Rewritable CDs; you can record and re-record on these over and over, much like tapes.
• Digital: Method of representing data using binary numbers. Digital data can be copied and transmitted from one piece of equipment to another without losing quality.
• DPI: Dots Per Inch, measuring the resolution of an image. The greater the DPI, the higher the resolution and the larger the file size.
• DVD: Digital Video Disc, capable of holding two-plus hours of high-quality digital video; or Digital Versatile Disc, a double-sided, dual-layer disc that can hold eight hours of high-quality digital video or 30 hours of VHS-quality video.
• Film scanner: Device that captures the image of a slide or negative and converts it into a digital file that can be displayed, edited and stored on a computer.
• FireWire port: High-speed serial data port; allows various types of equipment to connect and communicate with each other.
• Flatbed scanner: Device that captures the image of a flat object and converts it into a digital file that can be displayed, edited and stored on a computer.
• S-Video: System that uses higher-density videotape than VHS to improve picture quality; requires special video cassettes, tape media, plugs, jacks and cables.
• Thumbnail: Low-resolution representation of an image file; allows many images to be visible on the computer screen at once without affecting the computer's performance.
• Time code: Recorded on the videotape along with the image and audio; provides a unique identifier for each frame; displayed as hours, minutes, seconds and frames (HH:MM:SS:FF). The three time code systems used for video are LTC, RC and VITC.
For more professional advice on using today's technology to preserve yesterday's memories, see the August 2001 issue of Family Tree Magazine.
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