Nah, you aren't doing what you think you're doing.
If a recording comes to you in a 44kHz (CD rate) format, for example, it can contain frequency content up to 22 kHz. Anything that was above 22kHz in the original audio signal going in to the ADC (analog-to-digital converter), is gone. It was filtered out. It never got digitized.
A 96kHz recording, on the other hand, can contain frequency content up to 48kHz.
But upsampling a 44kHz recording to 96kHz -- which is child's play to do -- does not 'add back' the original signal between 22 and 48kHz. Even software that extrapolates 'missing' frequency content isn't giving you back what was never recorded. It's making a guess.