A de-esser can reduce an unusually sharp s or sh, but the same sound may carry information that makes a word recognizable. Choose a passage containing the troublesome consonant and several ordinary words, then compare a restrained treatment with the original. Do not approve a smoother waveform when the narrator now sounds as if a consonant is missing.
Establish whether the problem belongs to the voice
Listen to the recording without music and without previously applied enhancement. If the sharp sound appears only after a bright equalizer or heavy compression, bypass that stage first. A problem created downstream does not necessarily require another repair on the source. Check a second listening device at a comfortable volume so an unusually bright headphone response does not become the only reference.
Mark actual words rather than selecting every high-frequency region. A sustained cymbal, breath and spoken s may share part of the spectrum but play different roles. Keep the untouched take and write down the start of each disputed word.
Build a word-level comparison
Adobe's Audition reference describes a DeEsser and a detected-sibilance audition option. These are Adobe controls. The Premiere effects library is another external reference; it does not establish equivalent Imagild controls.
Make a short copy with the affected word, its preceding vowel and its following consonant. Adjust the selected treatment cautiously, listening at a comparable voice level. When a residual audition is available, recognizable vowels or entire syllables in it suggest that the detection is too broad. Change one setting and compare again, rather than layering several presets at once.
A repeatable approval sheet
For a hypothetical tutorial, record the sentences “Save the smaller size” and “Send six samples.” Ask a reviewer to transcribe each treated sentence without seeing the script. Include an ordinary sentence without prominent s sounds as a control. This is a proposed test, not a measured repair result.
Use three columns: word, original intelligibility, treated intelligibility. A sharper original can still be preferable when the alternative changes “six” into an uncertain sound. Recheck the entire sentence after the isolated word passes; a discontinuity in voice brightness can be distracting even when that one consonant remains clear.
Approve the complete mix
Accept a candidate when harshness becomes less intrusive while names, numbers and consonants remain recognizable. Reject a lisp-like change, a dull section surrounded by bright speech or a treatment that removes useful breath detail. The goal is comfortable understandable narration, rather than removal of every high-frequency event.
Check the rendered file under the actual music and on the intended speaker. Keep the raw narration, treatment version and word review sheet. Visual ideas can start from Imagild's Skills; this audio diagnosis belongs to the external editor and to listening to the delivered file. An approved visual shot does not settle whether its narration is intelligible.