Bedienungsanleitung Yamaha HTR-N5060 (Seite 106 von 124) (Englisch)

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GLOSSARY

■ LFE 0.1 channel

This channel reproduces low-frequency signals. The

frequency range of this channel is from 20 Hz to 120 Hz.

This channel is counted as 0.1 because it only enforces a

low-frequency range compared to the full-range

reproduced by the other 5/6 channels in Dolby Digital or

DTS 5.1/6.1-channel systems.

■ MP3

One of the audio compression methods used by MPEG. It

employs the irreversible compression method, which

achieves a high compression rate by thinning out the data

of hardly audible part to the human ears. It is said to be

capable of compressing the data quantity by about 1/11

(128 kbps) while maintaining a similar audio quality to

music CD.

■ Neo:6

Neo:6 decodes the conventional 2-channel sources for 6-

channel playback by the specific decoder. It enables

playback with the full-range channels with higher

separation just like digital discrete signal playback. There

are two modes available: “Music mode” for music sources

and “Cinema mode” for movie sources.

■ PCM (Linear PCM)

Linear PCM is a signal format under which an analog

audio signal is digitized, recorded and transmitted without

using any compression. This is used as a method of

recording CDs and DVD audio. The PCM system uses a

technique for sampling the size of the analog signal per

very small unit of time. Standing for “Pulse Code

Modulation”, the analog signal is encoded as pulses and

then modulated for recording.

■ Sampling frequency and number of

quantized bits

When digitizing an analog audio signal, the number of

times the signal is sampled per second is called the

sampling frequency, while the degree of fineness when

converting the sound level into a numeric value is called

the number of quantized bits. The range of rates that can

be played back is determined based on the sampling rate,

while the dynamic range representing the sound level

difference is determined by the number of quantized bits.

In principle, the higher the sampling frequency, the wider

the range of frequencies that can be played back, and the

higher the number of quantized bits, the more finely the

sound level can be reproduced.

■ WAV

Windows standard audio file format, which defines the

method of recording the digital data obtained by

converting audio signals. It does not specify the

compression (coding) method so a desired compression

method can be used with it. By default, it is compatible

with the PCM method (no compression) and some

compression methods including the ADPCM method.

■ WMA

An audio compression method developed by Microsoft

Corporation. It employs the irreversible compression

method, which achieves a high compression rate by

thinning out the data of hardly audible part to the human

ears. It is said to be capable of compressing the data

quantity by about 1/22 (64 kbps) while maintaining a

similar audio quality to music CD.

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