Why do certain songs sound louder than others even when they’re played at the same volume?

Question

Why do certain songs sound louder than others even when they’re played at the same volume?

In: Technology

Answer 1

There’s an audio technique called levelling, where the overall average volume can be changed. Some CDs have different levels depending on the production values, and sometimes because the range of volumes in the music (loud vs. soft), more common in orchestral pieces. You’ll see levelling used on radio and TV stations, they use it to keep the audio low so that they can blare commercial sound, used to be a common tactic.