A family of wavetable synth sound chips used by Namco in their arcade machines (Pac-Man 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.
Chip Variants
Namco WSG
- 3 channels of wavetable synthesis
- Basic functionality, no extra features
Namco C15
- 8 channels of wavetable synthesis
- More advanced sound capabilities
Namco C30
- 8 channels of wavetable synthesis
- Stereo output
- Noise mode support
- 4-bit waveforms
- 32-byte sample length
Effects
| Effect | Description |
|---|
10xx | Change waveform |
11xx | Toggle noise mode (C30 only) |
The noise mode effect (11xx) only works on Namco C30.
Chip Configuration
The following options are available in the Chip Manager window:
For Namco WSG and C15:
- Waveform storage mode: Selects whether RAM or ROM is connected to the chip
- RAM: Connects RAM for unlimited waves
- ROM: Connects ROM. Authentic to hardware, but only the first 8 waves are loaded
For Namco C30:
The C30 always uses RAM for waveforms, so the storage mode option is not available. Instead:
- Compatible noise frequencies: For compatibility with old Furnace
Instrument Editor
This chip uses the Namco WSG instrument editor. 