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EDITING SOUND FIELD PARAMETERS
71
ADDITIONAL
INFORMATION
What really creates the rich, full tones of a live instrument
are the multiple reflections from the walls of the room. In
addition to making the sound “live”, these reflections
enable us to tell where the player is situated, and the size
and shape of the room in which we are sitting.
■ Elements of a sound field
In any environment, in addition to the direct sound coming
straight to our ears from the player’s instrument, there are
two distinct types of sound reflections that combine to
make up the sound field:
Early reflections
Reflected sounds reach our ears extremely rapidly (50 ms
– 100 ms after the direct sound), after reflecting from one
surface only — for example, from the ceiling or a wall.
Early reflections actually add clarity to the direct sound.
Reverberations
These are caused by reflections from more than one
surface — walls, ceiling, the back of the room — so
numerous that they merge together to form a continuous
sonic “afterglow”. They are non-directional, and lessen
the clarity of the direct sound.
Direct sound, early reflections and subsequent
reverberation taken together help us to determine the
subjective size and shape of the room, and it is this
information that the digital sound field processor
reproduces in order to create sound fields.
If you could create the appropriate early reflections and
subsequent reverberations in your listening room, you
would be able to create your own listening environment.
The acoustics in your room could be changed to those of a
concert hall, a dance floor, or virtually any size room at
all. This ability to create sound fields at will is exactly
what YAMAHA has done with the digital sound field
processor.
You can enjoy good quality sound with the factory preset
parameters. Although you do not have to change the initial
settings, you can change some of the parameters to better
suit the input source or your listening room.
1 Press AMP to select the AMP
mode.
2 Turn on the video monitor
and press ON SCREEN
repeatedly to select the full
display mode.
3 Select the sound field program you want to
adjust.
EDITING SOUND FIELD PARAMETERS
What is a sound field Changing parameter settings
PHONO
POWER SLEEP
CLEAR
LEARN
STANDBY
TRANSMIT
RE–NAME
INPUT MODE
SYSTEM
V
-
AUX
DTV
POWER
REC
POWER
AMP
AVTV
DVR/VCR2VCR 1 DVD
SELECT
CBL/SAT MD/TAPE CD-R
TUNER
MULTI CH IN
CD
REC
DISC SKIP
SET MENU
TV INPUT
A/B/C/D/E
AUDI O
VOL
LEVEL
MENU
STRAIGHT
STEREO
ENTERTAIN
NIGHT
MOVIE
THX
/DTS
TEST
ON SCREEN
EFFECT
CHP/INDEX
TV VOL
RETURN
DISPLAY
PRESET PRESET
TV MUTE
TV VOL
SELECT
HALL
CHCH
JAZZ
ROCK
TITLE
MUTE
AVTV
+
+
+
–
–
–
3421
5
90
+10 ENTER
678
MUSIC TV THTR
EX/ES
2
4
5
3
1
AMP
ON SCREEN
DISPLAY
ON SCREEN
DISPLAY
STEREO
ENTERTAIN MUSIC TV THTR
NIGHT
EX/ES
MOVIE
THX
/DTS
CHP/INDEX
HALL
JAZZ
ROCK
3421
5
90
+10 ENTER
678
P05 ROCK CONCERT
ROOM SIZE;;;;1.0
LIVENESS;;;;;;;5
REV.TIME;;;;1.6s
REV.DELAY;;120ms
DSP LEVEL;;;;0dB
INIT.DLY;;;;15ms
>
Program No. Program name
Parameters Parameter values
Cursor
00_HTR-5790U_EN.book Page 71 Tuesday, December 9, 2003 9:16 AM