What is decibel, and what does it measure ? - Printable Version

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What is decibel, and what does it measure ? - Manish Jain - 11-28-2024

Questions asked in Jury on ACOUSTICS - BUILDING SERVICE STUDIO-III
Faculty of Planning and Architecture, Poornima University , Jaipur

What is decibel, and what does it measure: wavelength, amplitude , loudness or  frequency ?

Decibel (dB) is a unit that measures the intensity or loudness of sound, which is directly related to the amplitude of the wave.
Example:

• Whisper: 30 dB
  
• Normal conversation: 60 dB
  
• Rock concert: 120 dB
  A higher decibel level means a louder sound.
  

For more detail ....   BUILDING SERVICE STUDIO – III ESE Jury on ACOUSTICS

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