Glossary - Panasonic DMR-EX75 Operating Instructions Manual

Glossary

Bitstream
Digital multi channel audio data (e.g. 5.1 channel) before decoding to the individual
channels.
Brightness signal Y
Analogue video signal showing the brightness levels of the picture, regardless of the colour
signal (C) chrominance signal. It allows for higher resolution and colour reproduction true
to the original colour.
Chrominance signal
The three signals red, green and blue can be converted into three other signals: luminance
Y (luminance signal) and 2 chrominance signals P /P (colour difference signals).
B R
Decoder (e.g. DTS / Dolby Digital)
A decoder converts the coded audio signals of the DVDs back to the original signals.
This procedure is called decoding.
Digital audio optical fibre cable
When this cable is connected, the electronic signals for output to the amplifier are
converted into optical signals.
DPOF (Digital Print Order Format)
DPOF is the standard format for printing pictures recorded with a digital camera etc.
It enables automatic printing in a photo shop or on your own printer.
LPCM (Linear PCM)
These are uncompressed digital signals, similar to those on CDs. LPCM sound can be
used during recording in XP mode.
PCM (Pulse Code Modulation)
Standard procedure for recording uncompressed digital audio signals.
RGB (Red Green Blue)
This refers to the three primary colours of light, red (R), green (G), and blue (B) and also
the method of producing video that uses them. By dividing the video signal into the three
colours for transmission, noise is reduced for even higher quality images.
Scan frequency
When converting (encoding) to a digital signal, the (analogue) sound signal is scanned
at certain time intervals. The number of scans per second is called the scan frequency.
The higher the scan frequency, the better the original sound is reproduced.
Sound mixing
This is the remixing of the multi channel sound that exists on some discs to two channels for
stereo output. Sound mixing makes sence e.g. if you want to playback the 5.1 channel
sound of a DVD over your television speakers. However, some discs do not allow mixing.
In this case, only the two front channels are output.
TIFF (Tag Image File Format)
This is a system used for compressing/decoding colour still pictures, a common format for
storing high quality images on digital cameras and other devices.
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