Namco C352
 Namco 352
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| Manufacturer(s) | Fujitsu |
| Designer(s) | Namco |
| Release Date(s) | 1993 |
| Type(s) | 8-bit PCM, 8-bit µ-law PCM, Noise generator |
| Amount of channels | 4 (quadraphonic) |
| Amount of voices | 32 |
| VGM support | since 1.71 |
The Namco C352 is a 32-voice 4-channel sound chip designed by Namco. It succeeded the C140 as the sound chip used in most Namco arcade games during the mid and late 1990s, starting with Ridge Racer in 1993. The VGM Specification supports this chip since version 1.71.
Details
The C352 has 32 voices, which can play PCM samples or white noise on up to 4 channels. Volume control is independent for each channel, allowing surround panning. 8-bit PCM samples as well as 8-bit µ-law samples from a sample ROM up to 16 megabytes in size. Several effects are supported, such as frequency modulation, phase inversion on selected channels, as well as backwards and bidirectional playback. While the maximum length of looping samples is 65536 bytes, longer non-looping samples can be seamlessly linked together.
The C352 does not support hardware volume envelopes, this has to be done by the sound driver instead.
Compared with the C140, the C352 can address more memory, has twice the amount of output channels, and the usual sampling rate is about twice as high. Registers are also 16 bits wide rather than 8 bits.
Uses
- Namco System 11
- Namco System 12
- Namco System 22
- Namco System Super 22
- Namco System 23
- Namco System Super 23
- Namco System FL
- Namco NB-1
- Namco NB-2
- Namco ND-1