Noise for Working from Home

Why white noise is the work-from-home default

Speech sits in a specific frequency range — roughly 250 Hz to 4 kHz, with the most-intelligibility energy clustered around 1 to 3 kHz. To mask speech effectively, your noise needs to have substantial energy in that band. White noise (flat spectrum, equal energy at all frequencies) covers that range fully. Brown noise (energy concentrated below 1 kHz) doesn't — you'll still hear conversations through brown.

Office acoustic-masking systems typically use white or pink noise for exactly this reason. The trade-off is that white feels more present and "active" than brown. For solo focus in a quiet home, brown is gentler. For chaos masking, white earns its keep.

Common WFH noise problems and what to use

• Roommate or partner on calls all day: white noise on speakers in your workspace, or white on headphones if the workspace is shared. The slider toward bright is most aggressive.
• Construction next door: white noise + over-ear noise-cancelling headphones. Pure noise apps alone won't beat construction; the layered approach (NC cans plus noise) usually does.
• Kids being themselves: brown noise on speakers. Loud enough to mask the constant low-grade background, quiet enough not to fight your hearing for important kid-needs-attention sounds. Adjust as needed.
• HVAC drone, refrigerator hum, mechanical noise: calibrate to your room. Tap the tune to your room button. The mic listens for ten seconds and the noise is shaped to mask whatever's loudest. The audio is processed on-device and discarded.
• Coffee shop chatter (when you escape the house): white noise on headphones. Most aggressive masker.
• Noisy keyboard from open-office return-to-office days: pink noise on speakers, or brown if you can get away with it. White's high-end will fight the click sounds and feel like more noise.

Speakers vs headphones for WFH

Speakers fill the room with steady masking that everyone in your space hears. Useful when you're alone in a private office. Disruptive when shared with anyone who isn't part of your work session. Headphones isolate you specifically and leave your space free for others. Useful in shared homes; less social-friendly because you can't hear someone calling you for lunch.

Many WFH setups end up using both depending on the day. NoiseMoon doesn't care which you use — it's the same audio output either way, generated on whatever device the page is open on.

Why the streaming alternatives fall short for WFH

If you've been using YouTube or Spotify for work-from-home noise, the failure mode is well-known: ads. Free Spotify cracks the music with an ad every couple of tracks; YouTube fires mid-rolls hours into a long video. For a focus block where you're trying to stay in flow, an ad shock is exactly the wrong thing.

The other failure: loops. We measured 19 popular YouTube "white noise" videos and found that 6 of them had detectable loop seams. For a 4-hour focus session, your brain notices the loop, and the masking effect drops as you become aware of the looped audio file. Procedural noise has no loop seam.

The video-call problem (and how to handle it)

If you have noise playing through speakers and you take a video call, your microphone may pick up some of the noise and your call partner hears it. Three options:

1. Drop the volume to near-zero for the call. Drag the slider down. The noise becomes inaudible to your mic. Drag it back up after.
2. Pause it entirely. Tap play to pause; tap again to resume after the call.
3. Switch to headphones for the call. Speaker noise stops being a mic input.

NoiseMoon doesn't currently auto-duck on incoming calls (it's not a system app, it's a browser tab). Manual control is the trade-off for the privacy story — we don't watch your other apps to know when to pause.