Yamaha YDP-165 YDP-165_YDP-145_YDP-S55_YDP-S35_Owners Manual - Page 16

Playing the Piano, Intelligent Acoustic Control (IAC)

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Playing the Piano Intelligent Acoustic Control (IAC) IAC is a function which automatically adjusts and controls the sound quality according to the overall volume of the instrument. IAC Control is effective only on the sound output of the instrument speakers or headphones. Even when the volume is low, this lets you hear both low sounds and high sounds clearly. Especially when using the headphones, the burden on the ears is reduced without raising the overall volume excessively. Default setting: On To turn on/off IAC: While holding down [DEMO/SONG] and [PIANO/VOICE] simultaneously, press the C#2 key to turn the function on or the C2 key to turn the function off. C#2 (On) Lowest key C2 (Off) To adjust IAC Depth: While holding down [DEMO/SONG] and [PIANO/VOICE] simultaneously, press the D2 key to decrease the value, or the E2 key to increase. D#2 (Default) Lowest key D2 (Depth -1) E2 (Depth +1) The higher the value, the more clearly that low and high sounds are heard at lower volume levels. Setting range: -3 - +3 Default setting: 0 16 YDP-165, YDP-145, YDP-S55, YDP-S35 Owner's Manual

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YDP-165, YDP-145, YDP-S55, YDP-S35 Owner’s Manual
Playing the Piano
IAC is a function which automatically adjusts and controls the sound quality
according to the overall volume of the instrument. IAC Control is effective only
on the sound output of the instrument speakers or headphones. Even when the
volume is low, this lets you hear both low sounds and high sounds clearly.
Especially when using the headphones, the burden on the ears is reduced
without raising the overall volume excessively.
To turn on/off IAC:
While holding down [DEMO/SONG] and [PIANO/VOICE] simultaneously,
press the C
#
2 key to turn the function on or the C2 key to turn the function off.
To adjust IAC Depth:
While holding down [DEMO/SONG] and [PIANO/VOICE] simultaneously,
press the D2 key to decrease the value, or the E2 key to increase.
The higher the value, the more clearly that low and high sounds are heard at
lower volume levels.
Intelligent Acoustic Control (IAC)
Default setting:
On
C2 (Off)
Lowest key
C
#
2 (On)
Lowest key
D2 (Depth -1)
E2 (Depth +1)
D
#
2 (Default)
Setting range:
-3 – +3
Default setting:
0