- Piano sounds 85dB〜95dB
- Radio sounds 80dB〜95dB
- Karaoke 80dB〜95dB
- Air compｒessor 80dB〜95dB
- Music studio 95dB〜120dB
Two units that represent sound
- This unit expresses the loudness of a sound.
The higher the number, the louder the sound.
The sound that is heard by a human's ear is called a dB.
- A unit that expresses the pitch of a sound.
This represents the number of times a sound wave occurs per second.
The lower the number, the lower the sound.
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