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What are the max audio sampling rates+polyphony of old gaming consoles, of retro 8-bit sounds [moved from Scientific Discussion]
WAZAAAAA
post Apr 29 2013, 06:17
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Google didn't help me much on these.

Is there a way to know how much 'sampling rate' expressed in Hz and 'polyphony' did the old gaming consoles such as the NES and Gameboy support on their sound hardwares? This may or may not be a dumb question, as I'm not too much into this stuff, so please bear with me.

I've found on Wikipedia a fine chart showing examples of what kind of devices uses certain sampling rates, but in the list there's not what I'm searching for. Does anyone know?
I've also recently stumbled upon this strange thing called "polyphony" which I didn't fully understand. I have a program that has an option to change the maximum polyphony of it, with numbers that range from 32 to 512. Were 8-bit consoles even capable of playing multiple sounds at once in the first place?

I basically want to know how to make sounds as similar as possible to original retro gaming consoles.
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saratoga
post Apr 30 2013, 21:25
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I don't really see the distinction between a digital function generator clocked off a vco and an analog generator composed of a vco controlled by a digital circuit. Its the same idea described differently.
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benski
post May 1 2013, 16:19
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QUOTE (saratoga @ Apr 30 2013, 15:25) *
I don't really see the distinction between a digital function generator clocked off a vco and an analog generator composed of a vco controlled by a digital circuit. Its the same idea described differently.


Except that the digital function generator necessarily aliases (unless extreme care is taken in the mathematics, which is unlikely).
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saratoga
post May 1 2013, 19:51
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QUOTE (benski @ May 1 2013, 11:19) *
QUOTE (saratoga @ Apr 30 2013, 15:25) *
I don't really see the distinction between a digital function generator clocked off a vco and an analog generator composed of a vco controlled by a digital circuit. Its the same idea described differently.


Except that the digital function generator necessarily aliases (unless extreme care is taken in the mathematics, which is unlikely).


I assumed that by "digital" he meant a device that takes some constant square wave clock and multiplies it by a rational number to generate a tones. IIUC you're think more like a DDS system where there is an actual DAC inline with synthesis.
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