NON Software Computer Audio Issue

This is an appeal to the Geeks here:

When writing, I will often listen to music on my Computer. That has been seamless and trouble free, but with the new Google, YouTube, and Facebook policies things have changed. It is now common that I am listening to Music at lets say 3 db, and suddenly the volume will jump by 6 or more db for an advertisement. This is very distracting.

I've tried software volume limiting before but they somehow defeat that and it is not easy to manually adjust.

Years ago, when I was working big Audio we had a thing called a Compression Amplifier that would take a varying input level and set it at a fixed level. This thing would handle lots of power and was quite expensive, over $1000. We had one that was two channel.

I'm looking for a tiny Compression Amplifier that has a male 1/8th inch Stereo male input and will output to earphones or small speakers.

So far, I have found nothing.

Gwen