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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 (the first product to feature it, and was named after), 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 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 Porta Tone PSR-80. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yamaha YM2414」の詳細全文を読む スポンサード リンク
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