I only use a Mac, so I don't know about cross-platform use.
I have PTE AV Player installed and it runs the shows from the shows menu I made.
I suspect that a Mac user may get a prompt to download the player for Mac when they try to run a show.
You have done very well and produced a competent slideshow, especially as this is your first production. I look forward to more of your work in the future.
My experience is different to that of Tom. I viewed your original (.exe) file and it opened and played well on my iMac.
I have downloaded the latest PTE AV Player.
It's an impressive piece of work, your Chess piece.
Are you a Windows or Mac user? (This may be a naïve question!)
This may help.
Noise reduction and optimising audio in Audacity
*N.B. Item 3 refers to adjusting the Filter Curve for specific tasks. My settings for that are to optimise MY voice.
For music, you may just go for the default settings.
1. Select a wave-free section containing noise
Effect > Noise reduction…> Get Noise Profile.
Effect > Noise reduction…> OK
2. Effect > Compressor > Settings
Threshold -18 dB
Noise floor -40 dB
Ratio 2:1
Attack Time 0.20 sec
Release “ 1.0 sec
3.* Filter curve.
4. Effect > Limiter > Limit to -3.00 dB
5. Effect > Normalize