Yamaha DSP-A970 Instrukcja obsługi - Strona 45

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DIR. ENHANCEMENT (Directional Enhancement)

This circuit emphasizes the position of sound. If this circuit is

activated, the unity constituent of the input left and right channels

(those signals which are common to the left and right channels) will

be output from the center speaker, and the disparity constituent of

the left and right signals (the difference between the left and right

channels) will be output from the surround speakers.

Because the unity constituent signal determines localization,

precise localization is obtained even though a listener is left or right

of the ideal center listening position.

The primary sound field around the screen is obtained according

to processing based on left, center and right speakers as the sound

source. Also, with the processing of the surround sound source

based on the disparity constituent (which includes most of the

indirectional sound constituent), sound diffusion to the rear speakers

is obtained. Therefore, directional enhancement is an especially

effective processing option for vocal or operas.

With monaural sound sources, almost all sounds are output from

the center speaker instead of the left and right main speakers.

Selectable levels:

OFF/MIN/MID/MAX

DOLBY PRO LOGIC (for MOVIE THEATER only)

By adding the Dolby Pro Logic Decoder to the DSP effect, the full

presence of a 70 mm film theater is reproduced without deteriorating

the channel separation.

With monaural sound sources, almost all sounds are output from

the center speaker instead of the left and right main speakers.

Selectivity:

ON/OFF

DELAY

Adjusts the delay between the direct sounds (at the main left,

center and main right channels) and the effect sounds (at the front

effect and rear effect channels). The larger the value, the later the

effect sounds are generated.

Control Range:

15 – 30 milliseconds