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Accurate number!

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Well, accurate enough.
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Electric Keet 2023-06-30 20:41:16 -07:00
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doc/7-systems/nes.md
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@ -6,7 +6,8 @@ also known as Famicom. it is a five-channel sound generator: first two channels
# effects
- `11xx`: **write to delta modulation counter.** range is `00` to `7F`. this may be used to attenuate the triangle and noise channels down to about half normal volume.
- `11xx`: **write to delta modulation counter.** range is `00` to `7F`.
- this may be used to attenuate the triangle and noise channels; at `7F`, they will be at about 57% volume.
- will not work if a sample is playing.
- `12xx`: **set duty cycle or noise mode of channel.**
- may be `0` to `3` for the pulse channels: