Very Top Spectrum Cut - PLEASE HELP!

[Powerfan]

Hey everyone. I finally got around to testing my audios for lossy. I have about 10 shows which have their frequencies cut off near the very top. Can anyone tell me if they are indeed lossy? Attached are a few various examples with the top frequencies cut (some more defined than others).

Any help would be appreciated :)

[tonebloke]

I vaguely remember reading, either here or on another site, something that audio above 20,000 Hz is not necessarily audible and software may not "read" what is there.
I may be getting the info confused (in my head) so don't take my word for it.

I will say they are lossless.

[Thulani]

Lossless.

[Powerfan]

Thanks everyone :)