Audio ducking level calculator
Convert a ducking reduction in decibels into a target volume percentage for speech-over-music planning.
Enter the current volume percentage and the reduction in dB to calculate the target linear volume while you speak.
Result
Calculate a starting ducking level
Enter values such as “70, 12” for a current level of 70 percent and a 12 dB reduction. The result applies the amplitude ratio 10^(-dB/20) and reports the target linear percentage. Use it as a repeatable starting point when setting a speaking volume below normal playback.
Verify with the audience signal path
A calculated level cannot account for microphone placement, source mastering, platform processing, or the shape of a device volume control. Record a private rehearsal from the same route your audience will hear, then adjust until speech remains clear without making the background disappear unnecessarily.