A quiet word is not a noise sample
An editor has a separately recorded voice track for an authorized civilian FPV venue film. Before putting that voice over the pictures, they want to reduce a steady background hiss. The recording and time ranges below are invented; the aircraft is not claimed to have recorded the sound.
Retain the original; use a copy with DC offset already checked and resolved.
Choose between two one-second excerpts
A · 0–1 seconds: assume only the same steady hiss heard beneath the narration.
B · 4–5 seconds: assume the softly spoken word “hall” is present. This is wanted speech, even if its waveform looks small.
Listen to confirm A before using it. Reject B as a noise-only sample; a low-looking waveform cannot establish the absence of speech.
The word “hall” explains where the film is taking its viewer. Losing its quiet ending would damage that explanation. Labeling the whole small shape “background” would erase the distinction the editor needs to make.
Try the sampled process on the copy
In Audition's Waveform Editor, select noise alone for at least half a second. Choose Effects → Noise Reduction/Restoration → Capture Noise Print. Select the passage to process, then open Noise Reduction from the same submenu. Preview while adjusting; stronger reduction can introduce audible artifacts.
- Processed voice
- Compare against the original: are word endings intact, without a newly hollow or watery character?
- Output Noise Only
- Listen for wanted speech among the removed material. If “hall” is audible, reconsider the sample and reduction before proceeding.
The result to seek is a better voice passage, not an empty-looking display. No setting here promises recovered syllables, and no universal percentage or decibel value is proposed.
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