Decibel calculator

Parameters
Decibel dB
Voltage V
(+ for amplification/- for attenuation)
Calculation
  • Voltage ratio = 100.0% of max
  • Power ratio = 100.0% of max
  • Logarithmic = 0.00 dB (attenuated)
    • Explanation
  • 'Decibel' is a logarithmic measure of loudness of a (sound) signal.
  • The max signal is at 100% ('clipping') and this is equivalent to 0dB.
  • If a sound (or voltage) peak is at 50% = -6dB (logarithmic)
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