Sound and Vibration Basics

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Many of our customers have sound level measurements thrust upon them and for a short period in their lives they are expected to understand the terms and sometimes complex parameters we use every day. So this section is aimed at the non-specialists.

Select one if the links below to read some basic information on the topic.

• Background Noise
• dB - the decibel
• Frequency Weightings  A, B, C, D, Flat, Lin, Linear and Z
  
• Integrating Sound Level Meters
  
• Leq - equivalent continuous noise level
• Measurement Microphones
• Noise Dose
• Reverberation Time  RT60, etc.
  
• Sound Absorption
• Sound Energy
  
• Sound Exposure  SEL, etc.
  
• Sound Fields
• Sound Insulation
  
• Sound Intensity
• Sound Level Meters - the basics
  
• Sound Power
• Sound Pressure  SPL, Lp, etc.
  
• Sound Waves
• Speech  STIPA
• Statistical Noise Levels  L10, L90, etc.
  
• Time Weightings  Fast, Slow, Impulse and PEAK
• Tone Assessment
• Vibration Dose VDV