Yamaha E580 Betriebshandbuch - Seite 33

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Each sound field program has a set of parameters that allow you

to change the characteristics of the acoustic environment to create

precisely the effect you want. These parameters correspond to the

many natural acoustic factors that create the sound field you

experience in an actual concert hall or other listening environment.

The size of the room, for example, affects the length of time between

the "early reflections"—that is, the first few widely spaced reflections

you hear after the direct sound. The "ROOM SIZE" parameter

provided in many of the DSP programs alters the timing between

these reflections, thus changing the shape of the "room" you hear. In

addition to room size, the shape of the room and the characteristics

of its surfaces have a significant effect on the final sound. Surfaces

that absorb sound, for example, cause the reflections and

reverberations to die out quicker, while highly reflective surfaces allow

the reflections to carry on for a longer period of time. The DSP

parameters allow you to control these and many other factors that

contribute to your personal sound field, allowing you to essentially

"redesign" the concert halls and rooms provided to create custom-

tailored listening environments that ideally match your mood and

music.

Refer to "3-2. DESCRIPTIONS OF THE DIGITAL SOUND FIELD

PARAMETERS" on page 32 for a description of what each

parameter does, how it effects the sound, and its control range.

1. With the desired program selected, press the SET MENU/

PARAMETER Select ( ) key on the remote control unit once. This

will recall the first parameter. In the case of the CONCERT HALL

program, for example, this would be the INIT. DLY parameter. You

can continue pressing the SET MENU/PARAMETER Select ( ) key

to select other parameters in sequence. If the key is pressed when

the last parameter is being displayed, the first parameter is selected

again.

2. When the desired parameter has been recalled, use the SET

MENU/PARAMETER + (increment) and – (decrement) keys to

change its value to create the effect you want. + increases the value

of the selected parameter, and – decreases the value of the selected

parameter. In both cases you can hold the key down for continuous

incrementing or decrementing. The display will pause for a moment

at the initial value of the parameter as a reminder. (On the monitor

screen,

mark at the head of parameter name disappears at the

initial value of the parameter.)

NOTE: Parameter edits made in this way will remain in effect even

with power cut due to power failure or the power plug disconnected

from the AC outlet for up to about two weeks, after which all

parameters, as well as other adjustments or settings on this unit, will

return to their initial values or conditions.