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cccskills
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voice-and-audio

Voice treatment for creator videos in DaVinci Resolve - loudness normalization, diagnosing a muffled or "underwater" voice from the spectrum, Voice Isolation, an EQ recipe, and fixing clips that normalization made worse. Use when building the timeline's audio step or when the creator says their voice sounds bad.

日本語の概要は準備中です。原文の説明を表示しています。

appariciojunior/video-editor-skillsスター 333(GitHub 333 + cccskills 0)

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  • SKILL.md2.2 KB

SKILL.md（原文）

インストールする前に、エージェントに与えられる指示の中身を確認できます。

Voice and audio

Always, as the last build step

Normalize Audio Level on every voice-track piece:

  • mode ITU-R BS.1770-4, target level -2.0 dBTP, target loudness -16 LKFS, set level Independent.
  • Check the result line ("normalized N pieces"); if it fails, give the creator these values to do by hand (select A1 → Normalize Audio Levels).

After normalizing, check for side effects

  • A silent clip (B-roll with no sound) gets boosted up to +30 dB → hiss. Set it back to 0 dB.
  • A B-roll clip with music/radio in it will fight the music bed: pull it down ~8 dB.

"My voice sounds muffled / underwater"

Measure before touching anything:

  1. Phase check: are left and right identical (true dual mono)? Compute L−R. If two different mics are summed (camera mic + lav), comb filtering causes exactly this sound: use one channel only.
  2. Spectrum: compare band levels of a 20 s talking section: below 300 Hz, around 1 kHz, above 3 kHz, above 6 kHz. A clean voice has its 3 kHz+ band roughly 10–15 dB below the total; we measured ~22 dB below with most energy under 300 Hz → the mic was covered (under a jacket) or badly placed.

Fix (most of it is EQ, which is not scriptable)

  • Scriptable: Voice Isolation 50 per talking clip (cleans room and noise; leave B-roll alone so its natural sound stays).
  • By hand (Inspector → Audio → EQ on one clip, then Paste Attributes with only Equalizer ticked, never Volume, so the normalize gains survive):
    • high-pass 80 Hz
    • −3 dB at 250 Hz, Q ~1.2 (boom)
    • +3 dB at 3.5 kHz, Q ~1 (presence)
    • +2 dB high shelf at 10 kHz (air)
  • Ask before driving the UI with computer-use; the creator may prefer to do it.

Prevention (tell the creator once)

Clip the lav on the outside of clothing, 15–20 cm below the chin; in stereo-mode receivers with one transmitter the voice is on one channel only.

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