Chasing Ghosts: Learning to Understand Noise in a Hardware Studio
This is probably the most uncomfortable entry for me to write in the entire studio redesign series—because it deals with a mistake that cost me a lot of time. That said, it’s also one of the most valuable lessons I learned.
To be fair to myself, I had never set up a studio like this before. I’d never worked with multiple hardware instruments feeding into mixers and outboard gear. Even though I should have known better—and even though I did know better at some point in the past—this knowledge completely slipped my mind during the redesign.
And that led me to chase a problem that didn’t exist…
while missing one that very much did.
The Problem That Wouldn’t Go Away
One of the biggest issues I kept running into was unwanted noise in the system—buzzing, humming, and general audio artifacts. Everything appeared to be connected correctly. The mixer was wired properly, instruments were routed where they should be, and I was using balanced TRS cables specifically to minimize noise.
Yet the noise persisted.
I rewired my studio multiple times trying to solve it. What made this especially difficult was that part of the problem was real, and part of it was imagined—and I couldn’t tell which was which.
When the Gear Really Was Failing
One genuine issue turned out to be my studio monitors.
For the first time ever, I started hearing noise at low levels—odd artifacts that I’d never encountered before. In several videos, I mention that my KRK monitors seemed “stubborn”: they’d make noise, then suddenly clear up.
This wasn’t imagined.
In late 2025, I went to turn on the monitor that had been giving me the most trouble—and it simply didn’t turn on. It had failed. What I’d been hearing earlier in the redesign process was the monitor slowly dying.
So yes—there was a real problem there.
But that wasn’t the whole story.
The Noise I Forgot About
The bigger mistake—the one I’m most embarrassed about—was forgetting something very basic about hardware.
Hardware is noisy.
Each instrument has its own noise floor—the sound it produces even when it’s sitting idle. And those noise floors vary wildly from instrument to instrument.
In my case, the Arturia DrumBrute was a major culprit. Sitting idle, it’s surprisingly loud. Even more confusing, turning the DrumBrute’s volume down made the noise floor louder, while turning the main volume up reduced the apparent noise.
I didn’t understand this at first. I spent countless hours testing cables, rerouting signals, and suspecting AC power, USB noise, or grounding issues—when the noise was simply coming from the instruments themselves.
The Mixer Was Talking Too
There was another thing I completely forgot.
Even when instruments are turned off, a mixer still has a noise floor.
Here’s what was happening:
I’d turn on a synth, power up the mixer, put on my headphones, and turn up the volume. I’d hear noise—and assume something was wrong upstream.
But the real issue was embarrassingly simple.
The faders on channels with inactive instruments were still turned up.
Those open channels were amplifying nothing but noise. Not static exactly—but unwanted signal that shouldn’t have been there at all.
The Simple Fix That Took Forever
Once I figured this out, the solution was immediate:
- Turn down all mixer channels that aren’t actively being used
- Only raise the faders for instruments that are actually on and playing
The difference was dramatic. Most of the noise disappeared instantly.
This was the second major lesson—one I absolutely should have known—but didn’t internalize until I lived through it.
The Remaining Pieces of the Puzzle
Even after fixing the mixer and understanding instrument noise floors, there were still two contributing issues that I wouldn’t fully identify until later:
- USB can be noisy
USB connections can introduce noise into audio systems. In many cases, switching to traditional 5-pin DIN MIDI eliminates that problem entirely. - Power and audio don’t play nicely together
Running audio and power cables too close to each other can introduce interference—something I’ll go into more detail about in a later post.
Once I addressed those issues as well, the studio finally became quiet in the way I expected it to be.
What This Taught Me
This entire experience reinforced something important:
When you move into hardware, there’s a huge learning curve—even if you think you already know what you’re doing, and in my case I admittedly did not.
Noise isn’t always a wiring mistake.
It isn’t always bad gear.
And it definitely isn’t always the power coming out of the wall.
Sometimes, it’s just the nature of hardware—and forgetting how it behaves.
Once I stopped chasing ghosts and started listening more carefully to what the system was actually telling me, everything fell into place.
