Yamaha RX-V563 Manual download pdf (Page 92)

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Glossary

■ 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.

■ SILENT CINEMA

Yamaha has developed a natural, realistic sound effect

DSP algorithm for headphones. Parameters for

headphones have been set for each sound field so that

accurate representations of all the sound field programs

can be enjoyed on headphones.

■ S-video signal

With the S-video signal system, the video signal normally

transmitted using a pin cable is separated and transmitted

as the Y signal for the luminance and the C signal for the

chrominance through the S-video cable. Using the S

VIDEO jack eliminates video signal transmission loss and

allows recording and playback of even more beautiful

images.

■ Virtual CINEMA DSP

Yamaha has developed a Virtual CINEMA DSP algorithm

that allows you to enjoy DSP sound field surround effects

even without any surround speakers by using virtual

surround speakers. It is even possible to enjoy Virtual

CINEMA DSP using a minimal two-speaker system that

does not include a center speaker.

■ 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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