NT$ 18,800
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Xaoc Devices Sofia 類比電壓控制振盪器（Transcendent Waveform Analog VCO）｜FOF 波形成技術 Eurorack 模組
Sofia 是一款完全以類比電路打造的電壓控制振盪器（VCO），其設計核心並非傳統鋸齒、方波或 wavetable，而是建立在一種源自電腦音樂研究的FOF（fonction d’onde formantique）波形成原理之上。這種合成方式原本用於產生具備明確頻譜結構的共振音色，常見於早期語音與共振合成研究，而 Sofia 則將其完整延伸並實體化為 Eurorack 類比模組。
在聲音結構上，Sofia 以一個經過精密校準、具備溫度補償的**三角波核心（triangle core）**作為基礎，並在此之上疊加兩組可調的「ripple」波形元素。最終的聲音由三個部分組成：
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略帶飽和感的溫暖基礎音色
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第一組 ripple 成分
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第二組 ripple 成分
每一個基礎波形週期，都會重新觸發這兩組 ripple 元素，使聲音在時間域中持續生成細緻的紋理變化。使用者可獨立控制 ripple 的密度、衰減速度、波形形狀，甚至讓其在單一週期內加速或減速變化，產生高度動態且可動畫化的音色行為。
雖然 Sofia 的輸出中包含多層次、乍聽之下彷彿彼此獨立的頻率成分，但所有波形皆由同一核心振盪器經波形塑形而來，因此全程維持嚴格的諧波關係與相位一致性。這使得 Sofia 並非 Buchla 定義下的 complex oscillator，而是一種超越傳統基本波形與 wavetable 的全新類比振盪概念，也正是「Transcendent Waveform」名稱的由來。
在實際應用上，Sofia 不僅提供主要混合輸出，還開放各個聲音組成部分的獨立輸出，加上大量 CV 控制輸入，非常適合進行自我 patching、動態調變、聲音結構拆解與重組。它既能作為音色核心，也能成為一個高度實驗性的聲音生成系統，特別適合聲響設計、現代電子音樂與模組即興演出使用。
產品特色
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完全類比設計的電壓控制振盪器（VCO）
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基於並延伸 FOF（fonction d’onde formantique）合成原理
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三角波核心，具備溫度補償與穩定調校
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基礎音色加上兩組 ripple 波形結構
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Ripple 密度、衰減速度與時間扭曲可調
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Ripple 波形可在 sine-like 與 square-like 間切換
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全部波形維持諧波與相位一致性
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多組獨立輸出，適合深入聲音拆解與再組合
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大量 CV 控制輸入，支援高度自我調變與動畫化 patch
詳細規格
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模組類型：Analog Voltage Controlled Oscillator (VCO)
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合成方式：Extended FOF synthesis
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核心架構：Temperature compensated triangle core
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頻率控制輸入：3 組
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參數控制輸入：8 組
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訊號輸出：6 組（包含混合與獨立成分）
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Eurorack 規格相容
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模組寬度：24 hp
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模組深度：30 mm
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電流消耗：
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+12V：90 mA
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-12V：80 mA
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反向電源保護：有
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