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Glossary
Audio/video information
Sampling Frequency and Bit Depth
These are values that represent the amount of information used to convert analog signals to digital signals.
They may be expressed as 48kHz/24bit, for example.
• Sampling Frequency
This defines the number of samples per second (sampling a finite set of discrete values in an analog
signal). The higher the sampling rate, the broader the range of frequencies that can be played back.
• Bit Depth
This defines the amplitude value of sounds when quantifying analog signals as finite values. The higher
the bit depth, the deeper sounds are reproduced.
Deep Color
This is a video technology supported by the HDMI standard. It processes RGB or YCbCr signals at bit
depths of 10, 12, or 16 bits per color, whereas conventional formats utilize only 8-bit processing, enabling
reproduction of more colors. Its gamut is comprised of a billion or more colors, while the gamuts of
conventional formats are comprised of only millions of colors or less. This broader gamut results in more
precise reproduction of colors and greater detail in darker portions.
Dolby Digital
This is a compressed audio format for 5.1 channels. It was developed by Dolby Laboratories, and is widely
used with DVD discs.
Dolby Pro Logic II
This technology converts audio signal recorded in 2 channels to 5-channel signal.
DTS Digital Surround
This is a compressed audio format for 5.1 channels developed by DTS. It is widely used with DVD discs.
FLAC
FLAC is a file format for lossless audio data compression. FLAC is inferior to lossy compressed audio
formats in compression rate but provides higher audio quality.
HDMI
High-Definition Multimedia Interface (HDMI) is a digital audio/video interface that has become an industry
standard around the world. It is capable of transmitting both digital video and audio signals intact via a
single cable. It is also compliant with the High-bandwidth Digital Content Protection (HDCP) standard. See
http://www.hdmi.org for more information.
MP3
One of the compressed digital audio format used by MPEG. With psychoacoustic technologies, this
compression method achieves a high compression rate. Reportedly, it is capable of compressing data
quantity by about 1/10 maintaining a certain level of audio quality.
MPEG-4 AAC
An MPEG-4 audio standard. It is used for mobile telephones, portable audio players, and audio streaming
services on Internet because it allows a high compression rate of data while maintaining better audio quality
than MP3.
Pulse Code Modulation (PCM)
This technology records analog audio signals in digital form, converts analog audio signals to digital audio
signals, and transmits analog audio signals in digital form. It is the underlying technology for all digital audio
signal systems, and is widely used with CDs, Blu-ray Discs, and many other types of media as a
uncompressed audio format known as Linear PCM.
WAV
Windows standard audio file format, which defines the method of recording the digital data obtained by
converting audio signals. By default, the PCM method (no compression) is used, but you can also use other
compression methods.
WMA (Windows Media Audio)
One of the compressed digital audio formats developed by Microsoft Corporation. With psychoacoustic
technologies, this compression method achieves a high compression rate. Reportedly, it is capable of
compressing data quantity by about 1/20 maintaining a certain level of audio quality.
x.v.Color
This is a color space supported by HDMI. It has become an international standard for video and offers a
broader gamut than does the sRGB standard for expression of colors never before possible. It expands the
color space while ensuring compatibility with the sRGB standard for more natural and vivid images.
Network information
SSID
SSID (Service Set Identifier) is a name that identifies a particular wireless LAN access point.
Wi-Fi
Wi-Fi is a technology that allows an electronic device to exchange data or connect to the Internet wirelessly
using radio waves. Wi-Fi offers the advantage of eliminating the complexity of making connections with
network cables by using wireless connection. Only products that complete Wi-Fi Alliance interoperability
tests can carry the "Wi-Fi Certified" trademark.
WPS
WPS (Wi-Fi Protected Setup) is a standard established by the Wi-Fi Alliance, which allows easy
establishment of a wireless home network.
APPENDIX ➤ Glossary
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