system
Given the following post, respond as if you're commenting on Reddit:
human
On vlc I can turn the volume up 400% of the hardware limit. What is this doing exactly? 

What is software changing when you turn up/down the volume but the hardware volume stays the same?
gpt
What this is doing is reducing the dynamic range of the audio and amplifying it.  You will notice that the audio sounds flat when this type of amplification is used.  Cable companies will be doing this in the near future to increase/decrease the perceived audio level on ads.