This isn’t always true. In fact, only compact disc sound can benefit from the sample rate increasing. However, many uploaders rip cart based game music at 44.1KHz and 48KHz. They think this gives them the best quality sound, it doesn’t.
Cart based video game music were made using synthesizer sound chips. These chips had set sample rates. Increasing the sample rate, actually distorts and unbalance the music, not make it better quality. It’s important to understand the proper sample rates of cart based game music.
Here’s a list giving you the proper sample rate settings for optimal sound harmony for cart based games.
Nintendo: 22050KHz (Mono)
Sega Master System: 22050Khz (Mono)
Gameboy: 22050Khz
Game Gear: 22050Khz
Sega Genesis/Mega Drive: 22050Khz
Turbo Grafx-16/PC Engine: 22050Khz
Super Nintendo: 32000KHz
Neo-Geo: 32000KHz
Sharp X68000: 32000Khz
Nintendo 64: 3200Khz
Arcade Games 1970-1984: 22050KHz
Arcade Games 1985-1997: 32000KHz
Note: The arcade games can vary.
I hope this helps uploaders in the future. If there are any consoles I forgot, please add it, with it’s proper sample rate.
As for something like Super Nintendo, it may have only had a sampling rate of 32kHz, but I know if I change the rate of an SPC file or in-game on ZSNES to a higher option, there is a noticeable, and in my opinion favorable, result. Less faithful to the original surely, but an improvement just as surely. I keep the sampling rate at the highest I can for Genesis synthesis as well.
I don’t know if you left out GameBoy Advance because it’s the same rate as the original GameBoy (I think), but that’s not on the list.
I’ve also noticed that the sampling rate is +/- a "handful" of samples off the standard sampling rates (44.1 kHz, 32 kHz, 22.05 kHz, etc.) for all the N64 audio that I’ve looked at. It is rather curious.