How to Sound Good (Part 4) - Compression and Limiting

This is Part 4 of my “How to Sound Good” series.

• In Part 1 , we bought microphones to capture the sound.
• In Part 2 , we used gates to kill the silence.
• In Part 3 , we used denoisers to scrub the background.

Now, we have a clean, quiet signal. But there is still one problem: Human beings are dynamic.

Sometimes you mumble while looking for a Jira ticket. Sometimes you laugh loudly at a bad joke. Sometimes you lean back in your chair to stretch.

To a listener on Zoom, this volume roller coaster is exhausting. If they turn up their volume to hear your mumble, your laugh will blow their eardrums out. If they turn it down to survive the laugh, they miss the status update.

This is where compression and limiting come in. This is the difference between “sounding clear” and “sounding professional.”

The Goal: Consistency, Not Loudness

In music production, we often use compression to make things “punchy” or “fat.” In remote work, we don’t care about that. We care about consistency.

Your goal is to make your whisper as audible as your shout, without it sounding unnatural. You want to be the “Radio Voice”—always present, always clear, never painful.

Tool #1: The Compressor (The Automated Volume Knob)

Imagine you hired a tiny engineer to live inside your laptop. His only job is to watch your volume meter. Every time you get too loud, he turns the volume knob down. When you stop yelling, he turns it back up.

That is a compressor.

The Controls (Simplified)

Most compressors share the same scary-looking knobs. Here is what they actually do for voice:

• Threshold: The “Line in the Sand.” Any sound louder than this gets turned down.
  • Setting it: Lower it until the compressor starts reacting when you speak at a normal volume.
• Ratio: How hard does the tiny engineer turn the knob?
  • 2:1: Gentle. If you go 2dB over the limit, he only lets 1dB through.
  • 4:1: Standard for voice. It keeps you firmly in place.
  • 10:1: Aggressive. You are basically handcuffed.
• Attack: How fast does he react?
  • For Voice: Keep it fast (5ms - 15ms). You want to catch the loud “T” and “P” sounds immediately.
• Release: How fast does he let go?
  • For Voice: Medium (100ms - 300ms). If it’s too fast, the volume will jitter up and down rapidly (this is called “pumping”).

My Recommendations

I have reviewed a few tools that handle this beautifully, depending on your style. **1. The “Visual” Choice: ** Klevgrand Korvpressor If the idea of Ratios and Thresholds makes your eyes glaze over, use this. It replaces the math with a UI where you simply “squeeze” the audio waveform. It is impossible to mess up. I use this when I just want to be done with it. **2. The “Transparent” Choice: ** TDR Kotelnikov GE If you want to control your volume without sounding like you are being controlled, this is the king. It is incredibly transparent. It has a “Delta” button that lets you hear exactly what is being removed, which is a fantastic learning tool. **3. The “All-in-One” Choice: ** SSL Vocalstrip 2 If you prefer a classic workflow, this channel strip has a “Compander” (Compressor + Expander) built in. It’s not as detailed as Kotelnikov, but it’s tuned specifically for speech.

The Trap: Fighting the Platform

Here is a warning for remote workers: Zoom and Teams have their own compressors.

If you compress your voice into a solid brick of loudness, and then feed it into Zoom, Zoom’s “Auto-Gain Control” might freak out and try to turn you down. The Strategy: Aim for gentle control. You want to smooth out the peaks, not flatten the waveform entirely. If you see your gain reduction meter hitting -10dB or -15dB, you are pushing too hard. Back it off to -3dB or -6dB. Let the platform handle the rest. Alternatively, disable the feature, and take full responsibility for your volume (I do this, largely because I got annoyed at Zoom messing with my mic level system-wide).

Tool #2: The Limiter (The Safety Airbag)

A limiter is just a compressor with an extremely high ratio (between 10:1 and ∞:1). It is a brick wall. Nothing gets past it.

Why do you need one?

You might think, “I already have a compressor, why do I need a limiter?”

The compressor is for tone and consistency. The limiter is for safety.

I call this the “Safety Airbag.” I place a limiter at the very end of my chain, set to -1.0 dB. It does absolutely nothing 99% of the time. But if I accidentally drop my microphone, or if I sneeze directly into the capsule, the limiter catches that spike and stops it from clipping the digital audio.

It ensures that no matter what happens in my physical environment, I will never send a distorted, ear-shattering digital spike to my coworkers.

My Recommendation

TDR Limiter 6 GE This is my go-to. It has excellent metering, so I can see exactly how loud I am, and it handles peaks transparently. I just set the “Output Ceiling” to -1.0dB and forget it exists. It also has a compressor module, along with multiple limiter modules, and a clipper module. You can do all of your compression entirely in this single plugin, to make things easier on yourself.

Pro Tip: This is even more important for your output chain (what you hear). In my Selfish Audio Guide , I talked about putting a limiter on your headphones. That protects your ears when your coworker drops their mic.

Putting It All Together (The Chain So Far)

So, what does the “Roam Office” chain look like now? Order matters!

1. Microphone (The Source)
2. Denoiser (Clear/Brusfri) -> Clean the mud before you shape it.
3. Gate (Kilohearts/SSL) -> Silence the gaps.
4. Compressor (Kotelnikov/Korvpressor) -> Level the volume.
5. Limiter (TDR Limiter 6) -> The Safety Airbag.

What’s Next?

If you have followed this series so far, your audio is clean, quiet, and consistent. You are technically perfect.

But… you might still sound a little weird.

Maybe your voice sounds “boxy,” like you have a head cold. Maybe your “S” sounds are sharp enough to cut glass (a common side effect of compression!).

That is where Tone Shaping comes in.

In the next post, we are going to tackle EQ (Equalization) and De-Essing. We’ll learn how to carve out the mud, add the “radio sparkle,” and smooth out those harsh high frequencies so you are pleasant to listen to, not just loud.

Stay tuned for Part 5!