Discussion of hardware and software development for Super NES and Super Famicom.
- For making cartridges of your Super NES games, see Reproduction.
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I've always expected the 4 bit samples representing values from -8 to 7. Now I'm wondering if it's supposed to be -7.5 to 7.5 instead because I can't get the conversion math correct.
Never mind I figured out what I did wrong. Turns out it's better to filter first, then shift, instead of shift first and then sample. Shifting first can cause it to overflow.