This question already has an answer here:

I'm editing a promo video that will appear on the web (specifically, PledgeMusic) and I'm curious what is the current best practice for the correct audio levels (base -dB) for:

  • Music (when no other sound is present)
  • Music (when a voice is also speaking)
  • Voice (when music is played at the same time)

merged by Rory Alsop May 29 '14 at 10:35

This question was merged with What are the correct audio levels for Voice and Music in a web promo video? because it is an exact duplicate of that question.