furnace/doc/7-systems/c219.md
2023-11-07 05:34:40 -05:00

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# Namco C219
Namco C219 is a 16-channel PCM sound chip that's a lot like C140, but has a noise generator, surround effect and a different µ-law curve.
this chip features:
- stereo soft panning
- accepts either 8-bit PCM or proprietary 8-bit µ-law compressed PCM samples
## sample memory notice
this chip is rather unique when it comes to sample memory. be sure to read this notice.
the channels are in groups of four. a sample bank (128KB) may be selected for each group.
if a sample that is on a different bank plays in a group, the group is switched to that bank, and other channels will be silenced.
## effects
- `11xx`: **set noise mode.**
- `12xy`: **set invert mode.**
- if `x` is 1 or higher, surround is enabled.
- if `y` is 1 or higher, invert is enabled.
## info
this chip uses the [C219](../4-instrument/c219.md) instrument editor.