User manual

Glossary
Nero Recode 65
10 Glossary
AAC
Advance Audio Coding is an audio compression method defined under the MPEG-4 stan-
dard. AAC has a higher compression ratio than other comparable formats (e.g. MP3) and
achieves high audio quality starting at 64 kbit/s already. This encoding format is used, e.g. in
online music stores and online radios.
AVC
Advanced Video Coding is a video compression standard. AVC was developed for maximum
encoding efficiency and makes it possible to produce good quality video compression at low
bit rates. It is one of the mandatory video compression methods for high-definition television
transmissions and for mobile devices (e.g. cell phones, PDA's).
Bicubic interpolation
Bicubic interpolation is an image processing method. If an image is enlarged beyond its ori-
ginal size, not only are the four neighboring pixels analyzed to calculate the new resulting
pixel, but other nearby pixels are analyzed as well. This way, the new pixel is interpolated
based on eight neighboring pixels.
Bilinear Interpolation
Bilinear interpolation refers to an image processing method. If a picture is enlarged beyond
its original size, the resulting new image pixels are calculated based on the average between
the four neighboring pixels. The more a picture is enlarged with this method, the less sharp it
becomes.
Bit rate
Bit rate refers to the amount of data (binary digits) that is transmitted within a time unit (gen-
erally 1 second), i.e. in bits/s. The higher the bit rate, the better the image quality.
Book Type
The book type defines the specification (e.g. DVD-, DVD+, DVD-ROM) of a DVD. In order to
ensure correct playback, the DVD specifications are defined in books so that all media can
be read correctly. The specifications are defined in the so-called Rainbow Books, which are
distinguished by means of their color (e.g. Yellow Book).
CABAC
Context Adaptive Binary Arithmetic Coding refers to an encoding method for digital video fi-
les. CABAC is an integral part of the H.264/MPEG-4 AVC encoding standard. Instead of va-
riable-length bit strings, a different arithmetic encoding method that makes it possible to re-
duce the bit rate between 10% and 20% (and therefore reduces space requirements) is u-
sed.