DTS:X
DTS:X is the next generation object-based, multi-dimensional audio technology from DTS.
Unbound from channels, DTS:X conveys the fluid movement of sound to create an incredibly rich,
realistic and immersive soundscape - in front of, behind, beside and above the audience - more
accurately than ever before. DTS:X offers the ability to automatically adapt the audio to the
speaker layout that best fits the space, from a television’s built-in speakers to a home surround
theater system to a dozen or more speakers in a commercial cinema. Immerse yourself at
www.dts.com/dtsx
DSD (Direct Stream Digital)
DSD (Direct Stream Digital) technology stores audio signals on digital storage media, such as
SACD (Super Audio CDs). The signals are stored at a high-frequency sampling rate (such as 11.2
MHz). The highest frequency response is equal to or higher than 100 kHz, with a dynamic range
of 120 dB. This technology offers better audio quality than that used for CDs.
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.
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.
Neural:X
Neural:X is the latest downmixing/upmixing and spatial remapping technology from DTS. It is built
in to DTS:X to provide upmix of Neural:X-encoded and non-encoded (PCM) data. In DTS:X for
AVRs and Sound Bars, Neural:X can produce up to 11.x channels.
PCM (Pulse Code Modulation)
PCM is a signal format under which an analog audio signal is digitized, recorded, and transmitted.
This technology is the basis of all other audio format. This technology is used as a lossless audio
format called Linear PCM for audio on a variety of media, including CDs.
Sampling frequency/Quantization bit
Sampling frequency and quantization bits indicate the quantity of information when an analog
audio signal is digitized. These values are noted as in the following example: “48 kHz/24-bit”.
• Sampling frequency
Sampling frequency (the number of times the signal is sampled per second) is called the
sampling rate. When the sampling frequency is higher, the range of frequencies that can be
played back are wider.
• Quantization bit
The number of quantization bits indicate the degree of accuracy when converting the sound
level into a numeric value. When the number of quantized bits is higher, the expression of the
sound level is more accurate.
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.
n
Glossary of audio information other than audio
decoding format
This is a glossary of the technical terms related to audio information used in this
manual.
Bi-amplification connection (Bi-amp)
A bi-amplification connection uses two amplifiers for a speaker. When you use the bi-amplification
connection, the unit drives the tweeter and woofer in a speaker with the discrete amplifiers. As a
consequence, the tweeter and woofer provide clear audio signal without the interference.
LFE (Low Frequency Effects) 0.1 channel
This channel reproduces low-frequency bass signals and has a frequency range from 20 Hz to
120 Hz. This channel is added to the channels for all bands with Dolby Digital or DTS to enhance
low frequency audio effects. This channel is labeled 0.1 because it is limited to only low frequency
audio.
Lip sync
Video output sometimes lags behind audio output due to the complexity of signal processing
caused by an increase in video signal capacity. Lip sync is a technique for automatically
correcting the timing lag between audio and video output.
Glossary of HDMI and video information
This is a glossary of the technical terms related to HDMI and video information used in
this manual.
Component video signal
With the component video signal system, the video signal is separated into the Y signal for
luminance and the Pb and Pr signals for chrominance. Color can be reproduced more faithfully
with this system because each of these signals is independent.
Composite video signal
With the composite video signal system, color, brightness, and synchronization data signals are
combined and transmitted with a single cable.
En
169
