Difference between revisions of "Yamaha YMW258-F"
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The '''Yamaha YMW258-F''' is a sound chip introduced in 1991 by [[Yamaha]] for their first General MIDI-compliant synthesizer, the Yamaha TG100. It also appeared on a number of higher-end consumer keyboards and specialized professional devices. The YMW258-F implements the '''GEW8''' sound synthesis technology, which is PCM sample-based synthesis under Yamaha's "Advanced Wave Modulation" (AWM) umbrella. | The '''Yamaha YMW258-F''' is a sound chip introduced in 1991 by [[Yamaha]] for their first General MIDI-compliant synthesizer, the Yamaha TG100. It also appeared on a number of higher-end consumer keyboards and specialized professional devices. The YMW258-F implements the '''GEW8''' sound synthesis technology, which is PCM sample-based synthesis under Yamaha's "Advanced Wave Modulation" (AWM) umbrella. | ||
| − | [[Sega]] used the chip in several arcade games on the [[Sega System Multi 32]], [[Sega Model 1]], and [[Sega Model 2]] arcade boards. The chip as found on these boards is called '''MultiPCM''', and has the Sega internal part number '''315-5560'''. | + | [[Sega]] used the chip in several arcade games on the [[Sega System Multi 32]], [[Sega Model 1]], and [[Sega Model 2]] arcade boards. The chip as found on these boards is called '''MultiPCM''', and has the Sega internal part number '''315-5560'''. Contrary to popular belief, it is not a custom Sega part, and contrary to what this site originally stated, it is not related to the earlier [[SegaPCM]] technology. |
===Technical specifications=== | ===Technical specifications=== | ||
Revision as of 13:10, 19 June 2023
The Yamaha YMW258-F is a sound chip introduced in 1991 by Yamaha for their first General MIDI-compliant synthesizer, the Yamaha TG100. It also appeared on a number of higher-end consumer keyboards and specialized professional devices. The YMW258-F implements the GEW8 sound synthesis technology, which is PCM sample-based synthesis under Yamaha's "Advanced Wave Modulation" (AWM) umbrella.
Sega used the chip in several arcade games on the Sega System Multi 32, Sega Model 1, and Sega Model 2 arcade boards. The chip as found on these boards is called MultiPCM, and has the Sega internal part number 315-5560. Contrary to popular belief, it is not a custom Sega part, and contrary to what this site originally stated, it is not related to the earlier SegaPCM technology.
Technical specifications
The MultiPCM has the following technical specifications.[1]
- Manufacturer: Yamaha
- Sega part number: 315-5560
- Yamaha part numbers: YMW258-F / GEW8 / YMFA1005
- Audio output: Stereo
- PCM audio channels: 28
- Audio bit depth: 16‑bit
- Sample rate: 44.1 kHz (CD quality)