Can't hear quality jump between formats when watching movies 😔

Hello guys,

I have a lot of movies with various audio formats. Some of them use FLAC, some AAC, and some Dolby Atmos.

The problem is that I can't recognize any difference between them. They all sound the same to me.

I don't own a soundbar or any other external audio equipment. I watch everything through the built-in speakers on my Samsung OLED 77S85F.

Why shouldn't I just convert them all to AAC? What's the point of keeping FLAC audio if I can't hear the difference?