ocr: Arial 10p pt F K U Z f(x) Volume Le A11 Quiet whisper VOLUME LEVELS (Decibels) Decibels are on a logarithmic scale 3dB increase = Double Intensity 3dB decrease = Halve Intensity 10dB increase = 10X Intensity 10dB decrease = 1/10 Intensity Example of noise source Decibels Intensity Quietest sound which can be heard 0 1 Quiet whisper 20 100
