Why Analogue Compression Still Earns Its Rack Space

In a world where creative tools are limitless in the DAW domain, you would assume that analog is losing its place in studio racks. Yet, we are finding that people are still buying outboard, and compressors specifically, more than ever. There may be some method in the madness here.

The short answer is that analog compression shapes a performance while it is happening, not just afterwards. Committing to a compressed tone during tracking lets a singer push harder, makes drums feel bigger, and helps guitars sit together. You end up mixing creatively rather than fixing, and hardware tends to be more forgiving to push than a plugin. We will get into the psychology of it, but first let's get into the workflow.

When you are tracking, whether it be drums, vocals or guitars, the sound of compression affects the way you or your artist performs.

How does compression help when tracking vocals?

On vocals, well dialled compression lets the singer push their performance without fear of overloading the chain, which frees your automation to be creative rather than corrective.

When you have a song that is vocally dynamic, good microphone technique is already a form of compression (further away is a little thinner and quieter, while closer is thicker and louder). When you combine good microphone technique with well-dialled-in compression settings, the vocalist can push their performance without the fear of overloading the signal chain. A benefit from an engineering point of view is that your automation becomes creative rather than a means of controlling the performance. During tracking, you won't constantly be reaching to alter the gain on your mic pre between sections. This allows you to focus on listening rather than engineering.

How should you use compression on drums?

On drums, compression tightens transient control on the close mics, balances the kit through the overheads, and can be pushed hard for creative pumping and size.

Compression on the close mics allows for better transient control on kicks and snare, making ghost notes a little more apparent and taming the bigger peaks. On overheads, it provides a smooth way of controlling the balance of the kick and snare within the image of the kit. You can also use it creatively in quieter tunes to have large amounts of gain reduction while the drummer plays very quietly. Often this makes drums feel much larger without them needing to be loud in the mix. (Check out the Robert Plant and Alison Krauss album Raising Sand for a master class in low velocity performance with maximum impact.)

There are, of course, the extreme compression use cases where you can have a crotch mic or a room mic being blasted apart by masses of gain reduction with a fast attack and slower release. This will add distortion and elongate the tone of the drums. If you get your timings right, the compressor will breathe in time with the song and make the drums feel as though they are grooving harder within the tune.

How does compression work on guitars?

On guitars, compression smooths pedal transitions, lengthens reverbs and adds punch to clean parts, as long as the timing does not fight the groove.

It can be used to smooth out pedal transitions, make reverbs longer or make clean guitars feel more punchy. Always make sure that the timings are not affecting the groove of the part negatively. Too fast and they will start shaving transients. Too slow on the release and the effects can get slurred between chord changes. Check out Cory Wong's records to hear aggressive compression on clean guitars, or check out Foo Fighters' Wasting Light to hear subtle compression making multiple guitar parts feel like they are working as a team, rather than competing with each other.

Why does tracking through hardware change the way you mix?

Because you commit to a sound with your hands and ears rather than with meters, you arrive in the DAW with fewer artifacts to fix, so mixing becomes creative rather than corrective.

All of these use cases will affect how each performer uses their creativity, technique, and timing. Oftentimes, when compression is used creatively, it may take a production forward, allowing you to use fewer elements and be more part-focused.

When using your hands on equipment, you are not focussed on meters and numbers; you are leaning towards a feeling. This oftentimes leads to heavier or more subtle compression, trusting your ears rather than a readout.

Once the audio is in your DAW, you find fewer artifacts, and are less inclined to do any fixing. Automation becomes a breeze, and mixing a production is creative rather than fixing a production.

Is analog compression hard to learn?

There is a learning curve, but analog gear is often forgiving. Start with less than you think you need, and push further as you grow confident.

Like all creative tools, there is a learning curve to all of this. Though analog gear is often more forgiving, you can go too far and take the life out of a source. So initially, less is more, and as you feel more confident, you can push further.

Why are analog compressors selling more than ever?

Plugin emulations have given a whole generation a taste of these sounds, and the real hardware feels more pliable and forgiving when you push it. Committing to a tone early also gives a production clearer direction.

We can thank plugin manufacturers for a lot of this. I remember when I started using UAD plugins, all I could think about was "Man, if it sounds this good in the box, what does the real thing sound like?" Turns out, the real thing often feels more pliable and forgiving; you can push further without feeling the unit fold, and you tend to be a little heavy-handed without fear of overcooking it.

The final thought process behind all of this is the fear of commitment. We are often told to keep our options as open as possible, because we don't know what we might want in the future. In reality, this often leads to a diluted production that is chock full of ideas and no permanent direction. Conversely, if you are recording and have a tone in mind before you start, use the gear you need to get it. The final production has a clear direction from the start and leaves space for creative experimentation.

Of course, the journey of analog is a financial commitment too. For a couple of subscriptions a year, you have already spent the price of a brand new Distressor. Sure, that's one unit, but it does make me wonder how much analog I could have bought by now, had I stuck to analog rather than feeding every subscription I'm signed up to.

Frequently asked questions

Should you compress while recording or only when mixing?

Both can work, but compressing while tracking shapes the performance itself. A singer pushes harder, a drummer's dynamics sit better, and you commit to a direction early rather than fixing everything later.

What is the difference between analog and plugin compression?

The goal is similar, but analog hardware tends to feel more forgiving when pushed, adding harmonics and character as it works. Plugins are flexible and recallable, while hardware encourages you to commit to a tone.

How much compression should you use when tracking?

Start with less than you think you need. Analog gear is forgiving, but you can still take the life out of a source. Once you are confident with how a unit responds, you can push further for effect.

Do you need expensive outboard to get good results?

No. Plugin emulations are a great place to learn the sound and the settings. Hardware is a step you can take later, once you know the tone you are chasing.

Thanks for reading! If you ever need advice on recording, recording equipment or production, feel free to get in touch. alec@studiocare.com