Bedienungsanleitung Yamaha RX-V 585 (Seite 137 von 151) (Englisch)

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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.

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.

Composite video signal

With the composite video signal system, color, brightness, and synchronization data signals are

combined and transmitted with a single cable.

Deep Color

Deep Color is a technology that HDMI specification supports. Deep Color increases the number of

available colors within the boundaries defined by the RGB or YCbCr color space. Conventional

color systems process the color using 8 bits. Deep Color processes the color with 10, 12, or 16

bits. This technology allows HDTVs and other displays to increase from millions of colors to

billions of colors and eliminate on-screen color banding for smooth tonal transitions and subtle

gradations between colors.

HDMI

HDMI (High-Definition Multimedia Interface) is the world-wide standard interface for digital audio/

video signal transmission. This interface transmits both digital audio and digital video signals

using a single cable without any loss. HDMI complies with HDCP (High-bandwidth Digital Content

Protection) and provides a secure audio/video interface. For further information on HDMI, visit the

HDMI website at “http://www.hdmi.org/”.

x.v.Color

“x.v.Color” is a technology that the HDMI specification supports. It is a more extensive color

space than sRGB and allows the expression of colors that were not hitherto possible. While

remaining compatible with the color gamut of sRGB standards, “x.v.Color” expands the color

space, and thus can produce more vivid, natural images.

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