# 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.