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Using Waves DeEsser the Right Way (And What to Avoid)

Using Waves DeEsser the Right Way (And What to Avoid)

Let’s be honest — a bad de-esser can ruin a good vocal. If you’ve ever added one and suddenly your artist sounds like they’ve got a lisp or the vocal goes dull, you’re not alone. The Waves DeEsser is powerful — but only when used the right way.

In this article, I’ll show you how I use the Waves DeEsser on melodic rap vocals, explain what each setting actually does, and point out the most common mistakes I see engineers make. I’ve used this plugin on countless sessions — including on my track “All Away” — and once you understand it, it’ll become a must-have in your chain.

What Is a De-Esser?

A de-esser reduces harsh “S” and “T” sounds in vocals — also called sibilance. These frequencies usually live around 4kHz–8kHz and can become harsh or piercing, especially after adding EQ, saturation, or top-end boost.

Waves DeEsser: Key Settings Explained

DeEsser Plugin
  • Split Mode: Cuts only the high frequencies (more transparent)
  • Wide Mode: Compresses the full signal when sibilance is detected (more aggressive)
  • Threshold: The lower you go, the more it reduces sibilant sounds
  • Frequency Selector: Target the area where sibilance lives (usually 5.5k–7.5k for male vocals)

💡 Pro Tip: Use Split mode if you want cleaner results. Wide mode works better if your vocal is overly bright or needs a warmer tone.

My Default De-Esser Settings for Rap Vocals

  • Mode: Split
  • Frequency: 5500 Hz
  • Threshold: Adjust until the “Ess” and “Tss” sounds are softened but still natural

I usually place it right after Waves Tune Real-Time in the vocal chain and before any compression or tone-shaping.

What to Avoid When Using De-Essers

  • ❌ Don’t set the threshold too low — it’ll sound like the singer has a lisp
  • ❌ Don’t target the wrong frequency — find the actual “ess” range with solo
  • ❌ Don’t forget about adlibs and stacks — they often need lighter de-essing

On “All Away,” I had to be extra careful with the emotional tone. I used subtle de-essing to keep the vocal smooth without losing the breathy high-end. It’s one of those tools that should be invisible if done right.

Try the Plugin Yourself

Want to Hear a De-Esser Used the Right Way?

Stream my track “All Away” to hear how de-essing helps keep vocals smooth without killing the tone — especially in the layered sections and higher melodies.

🎧 Listen on Spotify:
https://open.spotify.com/playlist/55hZj4oRTcoNjwGqGoUGeA

Need Help With Your Vocal Chain?

Whether you’re just getting started or trying to level up your mixes, I offer custom mixing, mastering, and 1-on-1 coaching for independent artists.

Don’t let bad sibilance ruin a good vocal — let’s fix it right.

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