Conversion formula for converting amplitude ratio (AR) into decibels is ________________?
Correct answer: B. Decibel = 20 log10 (AR)
- A. Decibel = 20 loge (AR)
- B. Decibel = 20 log10 (AR)
- C. Decibel = 20 log10 (AR)0.5
- D. Decibel = 20 loge (AR)0.5
Explanation
For an amplitude ratio, the decibel value is defined as 20 times the base-10 logarithm of the ratio: dB = 20 log10(AR). The factor 20 is used for amplitude, whereas power ratios use 10 log10.
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