Yamaha YM2414
The YM2414, a.k.a. OPZ, is an eight-channel sound chip developed by Yamaha. It was used in many mid-market phase/frequency modulation-based synthesizers, including Yamaha's TX81Z, DX11, YS200 family, the Korg Z3 guitar synthesizer, and many other devices. A successor was released as the upgraded OPZII/'YM2424', used only in the Yamaha V50.
The OPZ has the following features:
- Eight concurrent FM synthesis channels
- Four operators per channel
- Eight selectable waveforms
- Fixed-frequency mode, which can go much lower in the OPZII, enabling 0 Hz carriers or low rates for native chorusing
- Dual low frequency oscillators
Products
The chip was used in the PortaTone PSR-80 and PSR-6300, the Yamaha TX81Z rack-mounted FM synthesizer, the Yamaha DX11, DSR-1000 and DSR-2000, YS-100, YS-200 and DS55 synthesizers, the TQ5 Tone Generator and the Yamaha EMT-1 half-rack FM Sound Expander module. It was also used in the Yamaha WT11 wind tone generator.Its upgraded variant, the YM2424, was used exclusively in the Yamaha V50 music workstation.