🇹🇼 技術深度解析與實戰指南 (Traditional Chinese Guide)
VTuber 與歌回實況主在直播演唱時，最常面臨的技術瓶頸就是「原唱導唱漏音」：實況主耳機需要原唱聲音抓音準與節拍，但直播間觀眾絕不能聽到原唱。傳統方案依賴 Voicemeeter 複雜虛擬跳線，極易手滑漏音或爆音。KHelper V3 提供原生一鍵雙軌硬體隔離。
技術運作原理與架構 (How it Works)
KHelper 採用分離式雙核心音訊管線：串流輸出軌 (Stream Output) 僅將 UVR 分離出的純淨伴奏送入虛擬音效卡 VB-CABLE，由 OBS Studio 擷取傳給觀眾；監聽輸出軌 (Monitor Output) 則將原唱導唱與純伴奏依自訂比例混合送入實況主實體耳機，並具備毫秒級同步微調 (Offset Ms)。
標準設定步驟 (Step-by-Step Tutorial)
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安裝免費虛擬音效卡 VB-CABLE：前往 vb-audio.com 下載並安裝 VB-CABLE Driver，完成後重開機，確認 Windows 音效面板出現 CABLE Input 與 CABLE Output。
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設定 KHelper 雙軌音訊路由：在 KHelper 設定中：將「串流輸出 (Stream Output)」選為 CABLE Input；將「監聽輸出 (Monitor Output)」選為您的實體耳機。
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設定 OBS Studio 收音來源：在 OBS Studio 來源清單新增「音訊輸入擷取 (Audio Input Capture)」，裝置選擇 CABLE Output。觀眾接收純伴奏，麥克風獨立收音，零導唱漏音。
🌐 English Technical Specification & Global Streamer Architecture
Singing live on YouTube or Twitch poses a classic broadcasting dilemma: streamers need the original singer in their ears for pitch accuracy and timing, but broadcast audiences must hear only clean backing tracks and the streamer's live microphone. KHelper V3 solves this with native dual-track isolation.
KHelper establishes two concurrent Web Audio processing pipelines: Pipeline A (Stream Output) feeds clean instrumental stems directly to VB-CABLE Input, captured in OBS as an Audio Input Capture. Pipeline B (Monitor Output) blends instrumental stems and isolated guide vocals with independent volume faders into the streamer's physical headphones.
Quick Setup Guide
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Install VB-Audio Virtual Cable: Download the free VB-CABLE driver from vb-audio.com and restart Windows. Ensure "CABLE Input" and "CABLE Output" appear in Windows Sound Control Panel.
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Configure KHelper Dual Routing: In KHelper Settings -> Audio Routing, set "Stream Output" to "CABLE Input (VB-Audio Virtual Cable)" and "Monitor Output" to your physical headphones/audio interface.
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Bind OBS Audio Input Capture: In OBS Studio, add an Audio Input Capture source targeting "CABLE Output". Leave your vocal microphone on its own separate OBS audio track.