音频修复与降噪工具Audio Repair Tools

难度LEVELL3 · 高级L3 · Advanced 领域TOPIC音频

先学：Prerequisites: Fairlight 页面

学习目标LEARNING OBJECTIVES

学完你能用 Fairlight FX 修复插件清理对白里的底噪、嗡声、啪嗒声和齿音，并把修复批量套用到整轨。

概念说明CONCEPTS

音频修复是用 Fairlight 自带的修复类插件，针对性清除录音中特定毛病的过程——一种工具治一种病，不存在"一键变干净"。

  • 对号入座选工具：8 种修复插件各司其职——Noise Reduction 治底噪嘶声，De-Hummer 治电流嗡声，De-Clicker 治啪嗒爆点，De-Esser 治刺耳齿音。
  • 住在效果库里：Effects 面板 > Audio FX > Fairlight FX，插件拖到时间线片段上即生效。
  • 自动模式起步：Noise Reduction 的 Auto Speech Mode 针对人声一键降噪，新手先用它再谈手动。
  • 修一段惠及全轨：Paste Attributes 只勾 Plugins，把修复复制给同轨其余片段，不动各自已调好的音量。

操作步骤STEPS

  1. 打开 Effects 面板，展开 Audio FX 里的 Fairlight FX 列表
  2. 把 Noise Reduction 拖到问题片段上，插件控制窗自动弹出把 Fairlight FX 插件拖到时间线片段
  3. 选择 Auto Speech Mode，回放对比底噪的变化
  4. 有嗡声、啪嗒声、齿音时，分别换用 De-Hummer、De-Clicker、De-Esser
  5. 修好一段后复制它，框选同轨其余片段，用 Edit > Paste Attributes 只勾 Plugins 再 ApplyPaste Attributes 只勾 Plugins

练习PRACTICE

  1. 给一段有底噪的对话套 Noise Reduction 的 Auto Speech Mode，开关插件对比听感。
  2. 用 Paste Attributes 把修复套到同轨其余片段，确认各片段原有音量没被覆盖。

常见问题FAQ

降噪之后人声发闷、像在水下？

降太狠了。减轻降噪量或换更温和的模式——留一点底噪，远比把声音修"死"自然。

这和调色页的降噪是一回事吗？

不是。调色页的降噪治画面噪点（见 降噪处理）；这里的 Fairlight FX 治声音里的噪声，两套互不相干。

修复插件能救回录爆的音频吗？

救不回。削波过载的录音信息已经丢失，插件帮不上忙——这种情况只能重录或换一条 take。

Learning Objectives学习目标

After this card you can use Fairlight FX repair plug-ins to clean hiss, hum, clicks, and sibilance out of dialogue, and batch-apply the fix across a whole track.

Concepts概念说明

Audio repair means using Fairlight's built-in repair plug-ins to remove specific flaws from a recording — each tool treats one disease; there is no single "make it clean" button.

  • Match the tool to the problem: eight repair plug-ins, each with its job — Noise Reduction for hiss and floor noise, De-Hummer for electrical hum, De-Clicker for clicks and pops, De-Esser for harsh sibilance.
  • They live in the Effects Library: Effects panel > Audio FX > Fairlight FX — drag one onto a timeline clip and it takes effect.
  • Start with the automatic mode: Noise Reduction's Auto Speech Mode denoises speech in one click — beginners start there before going manual.
  • Fix one clip, heal the track: Paste Attributes with only Plugins ticked copies the repair to the rest of the track without touching each clip's volume.

Steps操作步骤

  1. Open the Effects panel and expand the Fairlight FX list inside Audio FX
  2. Drag Noise Reduction onto the problem clip — its controls window opens automaticallyDragging a Fairlight FX plug-in onto a timeline clip
  3. Select Auto Speech Mode and play back to compare the background noise
  4. For hum, clicks, or sibilance, switch to De-Hummer, De-Clicker, or De-Esser instead
  5. Once one clip sounds right, copy it, select the rest of the track, and use Edit > Paste Attributes with only Plugins ticked, then ApplyPaste Attributes with only Plugins ticked

Practice练习

  1. Apply Noise Reduction's Auto Speech Mode to a noisy dialogue clip and toggle the plug-in on and off to compare.
  2. Use Paste Attributes to spread the repair across the track, and confirm each clip's volume setting survives.

FAQ常见问题

Voices sound muffled and underwater after denoising — why?

You pushed it too far. Ease off the amount or switch to a gentler mode — a little leftover hiss sounds far more natural than an over-processed voice.

Is this the same noise reduction as on the color page?

No. The color page's noise reduction treats grain in the picture (see Noise Reduction); Fairlight FX treats noise in the sound. The two are unrelated.

Can repair plug-ins save clipped, blown-out audio?

No. Clipped recording has lost information for good, and no plug-in can restore it — re-record it or use another take.

深度资料：音频修复与降噪工具 →Deep dive: 音频修复与降噪工具 →

本卡术语Terms in this card

时间线Timeline 覆盖Overwrite 降噪Noise Reduction 调色页Color page 调色Grade Fairlight 音频Fairlight