Yamaha DSP-A970 Manual de instrucciones - Página 42

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In addition to the "TYPE" parameter which selects the sub-

programs within each sound field program (e.g. "Hall A in Europe"

and "Hall B in Europe" for program 1, "CONCERT HALL 1"), each

program also 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 41 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 Parameter Select

( ) key on the remote control unit once. This will recall the next

parameter after the program type. In the case of the CONCERT

HALL 1 program, for example, this would be the INIT. DLY parameter.

You can continue pressing the Parameter Select ( ) key

to select other parameters in sequence. Press the Parameter Select

( ) key to scroll upward through the parameter list.

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

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.

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

with power turned off 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.