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2026 年製作人最佳免費 Metering 工具

比較免費 metering 外掛：LUFS、true peak、頻譜、相位、相關度和響度合規，幫助製作人在母帶前發現問題。

2026 年製作人最佳免費 Metering 工具

Regional localization

Best Free Mastering, Metering and Loudness Tools 2026 — 繁體中文市場（台灣為主）:繁體中文版本的「Best Free Mastering, Metering and Loudness Tools 2026」需確認台灣或所在地的付款方式、稅務與發票、個資法、音樂權利管理、平台可用性、廣告帳號、硬體保固與消費者條款。不要把美國、英國或中國大陸流程當成通用預設。 請在目前本地帳號確認 dashboard、收款、資格、下架、廣告與功能可用性。

Best Free Mastering, Metering and Loudness Tools 2026 must be verified against current local rules, platform dashboards, payment rails, device availability, and market conditions before publishing operational advice. 請在目前本地帳號確認 dashboard、收款、資格、下架、廣告與功能可用性。 Plugg Supply localization audit.

快速解答

Metering 工具不會替你混音，但會告訴你耳朵可能漏掉了什麼。 對製作人來說，至少需要 LUFS/true peak 表、頻譜分析、相位/相關度表和峰值/RMS 讀數。

區域注意事項

本版本把「Best Free Mastering, Metering and Loudness Tools 2026」放在台灣及繁體中文讀者的實務情境中。這不是法律或稅務建議；在採用任何操作步驟前，請確認所在地的最新法規、平台條款與付款條件。

請在目前本地帳號確認 dashboard、收款、資格、下架、廣告與功能可用性。

為什麼需要 Metering

DAW 自帶電平表通常只能告訴你是否過載，卻不能完整顯示響度、true peak、頻譜平衡和 mono 相容。

Metering 的作用是輔助判斷：發現低頻堆積、刺耳高頻、相位抵消和過響 master。

  • LUFS 衡量感知響度，適合流媒體目標。
  • True peak 發現轉換後可能出現的 inter-sample peak。
  • 頻譜 看低頻、中頻和高頻是否失衡。

響度工具

響度表應放在 master bus 最後，讀取 integrated LUFS、short-term LUFS 和 true peak。

工具平臺功能最適合提示
Youlean Loudness Meter FreeWin/Mac/LinuxLUFS、true peak流媒體響度作為預設選擇
dpMeterWin/MacLUFS/RMS基礎母帶檢查輕量
MLoudnessAnalyzerWin/Mac響度歷史免費套裝使用者注意安裝包較大
DAW 內建 Loudness視 DAW基礎讀數快速檢查確認是否支援 true peak
Orban Loudness MeterWin/Mac廣播響度廣播/影片介面偏工具化
WLM 類工具付費為主合規交付客戶專案需要預算
線上分析器瀏覽器快速上傳檢查臨時復核不要上傳敏感檔案

頻譜與相位

頻譜分析器能幫助你與參考曲比較；相位表能提示 stereo widening 是否在 mono 中崩塌。

不要按頻譜畫圖混音。先聽，再用 meter 找原因。

工具型別用途風險提示
Voxengo SPAN頻譜頻率平衡看圖過度與參考曲比較
Blue Cat FreqAnalyst頻譜快速分析解析度有限適合檢查
HOFA 4U Meter相位/峰值mono 相容功能較基礎放在 master
Flux Stereo Tool立體聲寬度和相關度過度加寬檢查負相關
DAW vectorscope相位聲像判斷介面差異結合 mono 按鈕
Oscilloscope波形低頻形狀不等於好聽用於 kick/bass

使用流程

把 metering 放在 master bus 最後，先校準監聽音量，再比較參考曲。

  1. 檢查 peak
     確保混音沒有 clipping，並留出母帶 headroom。
  2. 讀 LUFS
     確認當前響度，而非盲目推 limiter。
  3. 看頻譜
     找低頻堆積、刺耳區或高頻不足。
  4. 檢查 mono
     切 mono 並看相關度，避免寬度處理導致抵消。
  5. Verify final loudness and true peak
     After the limiter, check integrated LUFS against your target. Verify true peak stays below -1 dBTP. Export and re-measure the final file — some meters give different readings on rendered audio than real-time playback due to look-ahead processing.

Common Metering 常見錯誤 to Avoid

Metering tools are only useful if you know how to read them. Several common mistakes lead producers to make incorrect mastering decisions based on meter readings. Understanding what each meter actually measures prevents these errors.

  • Chasing a number instead of trusting your ears LUFS is a guideline, not a rule. A track that measures -14 LUFS but sounds thin and lifeless is worse than one that measures -12 LUFS but sounds full and dynamic. Use meters to confirm what your ears tell you, not to override them.
  • Ignoring short-term LUFS variations Integrated LUFS averages the entire track. A track with a quiet verse at -20 LUFS and a loud chorus at -8 LUFS can average to -14 LUFS but still clip during the chorus. Monitor short-term LUFS to catch dynamic range problems that integrated readings hide.
  • Measuring in the wrong monitoring environment Room acoustics affect perception but not meter readings. If your room has a bass boost at 80 Hz, you might EQ out bass that the meter correctly shows is balanced. Trust meters for frequency balance decisions and your ears for tonal character.
  • Forgetting to check mono compatibility Sum your master to mono and check correlation. Bluetooth speakers, phone speakers, and many club systems play in mono. A master that sounds wide in stereo but phasey in mono has a stereo width problem, not a metering problem.

用 meter 輔助耳朵，在母帶前發現混音問題。

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Learning path

Related answer hubs

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Tools

Software and plugins for this workflow

Plugins, DAWs and production tools connected to the workflow covered in this article.

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Guide How To Master A Track Guide What Is Lufs Guide Best Free Limiter VST Plugins Guide Mixing Vs Mastering

常見問題

What LUFS should I master at for Spotify?
Master at -14 LUFS integrated with true peaks below -1 dBTP for Spotify. This is the platform's normalization target. Tracks louder than -14 get turned down by Spotify's volume normalization, so mastering louder gives you no advantage and reduces dynamic range. Some genres (EDM, hip-hop) benefit from -10 to -12 LUFS for competitive density, but only if the mix supports it without audible distortion.
Is Youlean Loudness Meter accurate enough for professional mastering?
Yes. Youlean Loudness Meter 2 uses the same ITU-R BS.1770 algorithm as professional tools like iZotope Insight and Nugen VisLM. It measures integrated, short-term, and momentary LUFS plus true peak with the same precision. The free version is fully functional for stereo mastering; the paid version adds multi-channel support and preset saving.
What is the difference between LUFS and RMS?
RMS (Root Mean Square) measures average signal level without perceptual weighting. LUFS uses K-weighting and gating (ITU-R BS.1770) to approximate human loudness perception, ignoring very quiet passages. LUFS is the industry standard for loudness normalization. RMS is still useful for gain staging and dynamics assessment but should not be used for loudness compliance.
Do I need a separate metering plugin if my DAW has built-in meters?
DAW built-in meters typically show peak and RMS levels but lack LUFS measurement, true peak detection, and detailed spectrum analysis. FL Studio's stock meter does not measure LUFS. Ableton Live's meter shows peak only. Logic Pro has a Loudness Meter plugin, which is adequate for basic LUFS readings. For comprehensive metering, a dedicated plugin like Youlean or dpMeter is necessary.
How do I use metering to fix a bad mix before mastering?
Load a spectrum analyzer on your master bus and compare your mix's frequency curve to a reference track in the same genre. If your mix has a 6 dB bump at 300 Hz compared to the reference, your mix has mud. If the high-end drops off above 8 kHz, your mix lacks air. Use the analyzer to identify problems, then fix them with EQ on individual tracks, not the master bus.