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Glossary
A
Aliasing
Aliasing, or alias effects, are mistakes that appear during digital scanning of sounds,
videos or images when the sample frequency (in audio editing) or resolution (in video
editing) used are too low.
ATN:
This abbreviation stands for "Absolute Track Number". Which is the actual time code
of DV and HDV recordings recorded using the helical scan method.
Audio
This is then referred to as "audio" when the sound signal is saved directly as such on
the PC. The actual sound is recorded or played back here.
audioid
audioid is a process used to determine the title and artist name base on musical
properties. An Internet connection is required to access the audioid database.
AVCHD
Stands for "Advanced Video Codec Definition". It is an HD format for video cameras
which has been developed by Panasonic and SONY. In comparison to the HDV format,
a meaningful quality improvement can be seen here.
For the video recording MPEG 4 AVC/H.264, and for audio recording Dolby
®
Digital
or Linear PCM are used. The maximum bit rate is 25 Megabits/sec.
AVI
The AVI format (Audio Video Interleaved) isn't actually a proper video format! Rather,
it is a so-called "container" for which the conventions for transferring audio and video
files to the program are only loosely defined. More in this topic can be found in
General notes on AVI videos.
B
Backup disc
Copying of files to a different file storage medium to secure these files is called backing
up, or creating a backup.