Taking Advantage Of The Sound Fields; Customizing The Sound Fields - Sony STR-GA9ESG Operating Instructions Manual

Taking Advantage of the
Sound Fields
This receiver uses digital signal processing to
reproduce the sound effects of various listening
environments, such as a movie theaters and concert
halls (etc.). By adjusting the surround parameters you
can control these sound elements to create a custom
listening environment.
Room size simulation
(ROOM SIZE)
Before sound reaches our ears, it is reflected many
times between the left and right walls, ceiling, and
floor. In a large room, sound takes more time to
bounce from one surface to another than in a smaller
room.
The ROOM SIZE parameter lets you control the
spacing of the early reflections to simulate a sonically
larger (L), or smaller (S) room. The midpoint
designates a standard room with no adjustment.
Wall material simulation
When sound is reflected off soft material, such as
curtain, the high frequency elements are reduced. A
hard wall is highly reflective and does not significantly
affect the frequency response of the reflected sound.
The WALL TYPE parameter lets you control the level
of the high frequencies to alter the sonic character of
your listening environment by simulating a softer (S),
or harder (H) wall. The midpoint designates a neutral
wall (made of wood).
Seat position simulation
(FRONT/REAR and LEFT/RIGHT)
If you sit in the front of a room, you hear more direct
sound from the front speakers. As you move to the
rear, the reflected sound increases. Similarly, the
reflected sound changes when you move from left to
right, and vice versa.
The FRONT/REAR and LEFT/RIGHT parameters let
you control the balance of direct and reflected sound to
simulate your listening position.
In the FRONT/REAR parameter, "F" signifies the front
of the room and "R" signifies the rear. The midpoint
designates the center.
In the LEFT/RIGHT parameter, "L" signifies the left
side of the room and "R" signifies the right side. The
midpoint designates the center.
(WALL TYPE)
Using Surround Sound
Reverberation time
(REVERB)
This parameter adjusts the length of time required for
the reverberation (echoes) generated from a given
sound to attenuate –60 dB.
You can choose shorter (S) or longer (L) reverberation
times.
Note
The EFFECT parameter allows you to adjust the overall
presence of the sound field.

Customizing the Sound Fields

Each sound field is composed of an equalizer (bass,
midrange, or treble) and surround sound parameters
— variables of sound, that create the sound image. You
can customize the sound fields by adjusting some of
the sound parameters to suit your listening situation.
See the chart on page 35 for the parameters available in
each sound field.
Once you customize the sound fields, they are stored in
memory unless the receiver is unplugged for about 1
week.
Adjusting the equalizer
Adjust the tone of the front, center and rear speakers
for optimum sound. You can adjust the tone of all
sounds fields, including Dolby Surround.
1
Start playing a program source, then click
SOUND in the main menu.
2
Click the genre of sound field you want to reset.
The previously selected mode turns on
automatically.
3
Click MODE repeatedly to select the mode you
want to adjust.
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