Sound Experience
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Feeling the acoustic sound physically
Let’s experience sound
Listen to the sound with the headphone.
Basic knowledge about sound
Sound volume
#The unit to express the sound level is "dB."
#As the volume becomes larger, the "sound volume level becomes larger."
#With human senses, when the level becomes higher by 10dB, the sound is twice as loud.
In contrast, when the level becomes lower by 10dB, the sound is half as loud.
Change in sound volume
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-30dB Human sense
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-20dB Human sense
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-10dB Human sense
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Standard Human sense
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+10dB Human sense
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+20dB Human sense
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+30dB Human sense
5 timesplaypause
Tone Pitch
#The unit to express a sound's pitch is "Hz."
#As the value becomes larger, the "tone pitch becomes higher.
#Human beings are capable of hearing in the frequency range from 20 Hz to 20,000 Hz.
#The most audible pitch for people is in the range from 500 Hz to 1,000 Hz.
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125Hz
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250Hz
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500Hz
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1000Hz
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2000Hz
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4000Hz
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Effects of sound insulation and absorption

THEATER
AUDIO
Sound insulation effect
Sounds that can be heard in a room
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Sound sources in a theater
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Sounds audible in the adjacent room
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Ceiling (45dB) RC non-sound insulation
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Wall (55dB) RC standard sound insulation
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Flooring (60dB) RC premium sound insulation
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Sound leaked through a door
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General door(20dB) RC non-sound insulation
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DAIKEN's Class-A sound-insulated door (35dB) RC standard sound insulation
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DAIKEN's Class-S sound-insulated door (40dB) RC premium sound insulation
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The figure in ( ) shows the guideline for sound insulation of 500Hz in each region.
Sound absorption effect
Vibrancy of sound in a room
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No sound absorption
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Live
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Dead
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The term "no sound absorption" indicates a condition where a vinyl cloth sheet is applied on the plasterboard for the ceiling and walls, and a wooden floor is installed.

ROOM
Sound insulation effect
Sounds that can be heard in a room
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piano sound sources
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Sounds audible in the adjacent room
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Ceiling (45dB) RC non-sound insulation
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Wall (55dB) RC standard sound insulation
playpause -
Flooring (60dB) RC premium sound insulation
playpause
Sound leaked through a door
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General door(20dB) RC non-sound insulation
playpause -
DAIKEN's Class-A sound-insulated door (35dB) RC standard sound insulation
playpause -
DAIKEN's Class-S sound-insulated door (40dB) RC premium sound insulation
playpause
The figure in ( ) shows the guideline for sound insulation of 500Hz in each region.
Sound absorption effect
Vibrancy of sound in a room
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No sound absorption
playpause -
Live
playpause -
Dead
playpause
The term "no sound absorption" indicates a condition where a vinyl cloth sheet is applied on the plasterboard for the ceiling and walls, and a wooden floor is installed.