# Namco WSG | Namco C15 | Namco C30 a family of wavetable synth sound chips used by Namco in their arcade machines (Pacman and later). waveforms are 4-bit, with 32-byte sample length. everything starts with Namco WSG, which is a simple 3-channel wavetable with no extra frills. C15 is a much more advanced sound source with 8 channels, and C30 adds stereo output and noise mode. # effects - `10xx`: **change waveform.** - `11xx`: **toggle noise mode.** _warning:_ only on C30. # info this chip uses the [Namco WSG](../4-instrument/namco.md) instrument editor.