Sony STR-D2090 Operating Instructions Manual page 36

@ Room Size Simulation
The sound emitted from a sound source is reflected many
times between the left and right walls, ceiling, and floor
before it reaches our ears. In a large room, the sound takes
more time to bounce from one surface to another than in a
smaller room.
The ROOM parameter controls the spacing of early
reflections to simulate the room size. The S indicator on the
display signifies a small room, the L indicator signifies a
large room and the middle point designates the standard
room size.
Room Size S
Level Early reflections
SS
Room Size L |
Level Early reflections
<<<
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Adjusting the SOUND FIELD program
@ Wall Material Simulation
When sound is reflected by a wall made of soft material
such as wood or a wall covered with a curtain, the high
frequency components are reduced. A hard wall is highly
reflective and does not significantiy effect the frequency
response of the reflected sound.
The WALL parameter controls the level of high frequencies
to simulate the wall material. The S indicator on the display
signifies a soft wall, the H indicator signifies a hard wall, the
middle point designates the standard wall made of wood.
Early reflections
Reverberation
Frequency
Early reflections and reverberation
Frequency