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Video converters are computer programs that can change the storage format of digital video. They may recompress the video to another format in a process called transcoding , or may simply change the container format without changing the video format.
The quality the codec can achieve is heavily based on the compression format the codec uses. A codec is not a format, and there may be multiple codecs that implement the same compression specification – for example, MPEG-1 codecs typically do not achieve quality/size ratio comparable to codecs that implement the more modern H.264 specification.
1-inch Type C Helical Scan or SMPTE C is a professional reel-to-reel analog recording helical scan videotape format co-developed and introduced by Ampex and Sony in 1976. It became the replacement in the professional video and broadcast television industries for the then-incumbent 2-inch quadruplex videotape (2-inch Quad for short) open-reel format.
Linear editing systems cannot dissolve between clips on the same video tape. Hence, one of these clips will need to be dubbed onto a new video tape. EDLs designate these occurrences by marking such dissolves' source reels as B-roll of "b-reels". For example, the EDL will change the 8th character of the reel name to the letter B.
Some containers only support a restricted set of video formats: DMF only supports MPEG-4 Visual ASP with DivX profiles. EVO only supports MPEG-4 AVC, MPEG-1 Video, MPEG-2 Video and VC-1. F4V only supports MPEG-4 AVC, MPEG-4 Visual and H.263. FLV only supports MPEG-4 Visual, VP6, Sorenson Spark and Screen Video. MPEG-4 AVC in FLV is possible ...
Freemake Video Converter 2.0 was a major update that integrated two new functions: ripping video from online portals and Blu-ray disc creation and burning. [13] [14] Version 2.1 implemented suggestions from users, including support for subtitles, ISO image creation, and DVD to DVD/Blu-ray conversion. [15]
Standard tape speeds varied by factors of two: 15 and 30 in/s were used for professional audio recording; 7 + 1 ⁄ 2 in/s (19.1 cm/s) for home audiophile prerecorded tapes; 7 + 1 ⁄ 2 and 3 + 3 ⁄ 4 in/s (19.1 and 9.5 cm/s) for audiophile and consumer recordings (typically on 7 in (18 cm) reels). 1 + 7 ⁄ 8 in/s (4.8 cm/s) and occasionally ...
7-inch reel of 1 ⁄ 4-inch-wide (6.4 mm) recording tape, typical of non-professional use in the 1950s–70s. Studios generally used 10 1 ⁄ 2 inch reels on PET film backings. Inexpensive reel-to-reel tape recorders were widely used for voice recording in the home and in schools, along with dedicated models expressly made for business dictation.