Big Walk Microphone Puzzle — "Sound Check" Solved

Last verified: August 12, 2026 · A dedicated deep-dive on the Yellow Tower sound check puzzle.

The microphone puzzle — also called the speaker puzzle, the chair puzzle, the headphone puzzle, or "Headphone Hell" to groups who have ground it out — is one of the five Yellow Tower puzzles, and the only one demanding real listening skill. Here's the full breakdown: where it is, what's actually happening, a step-by-step solve, group tactics, and the mistakes that wipe your progress.

Location

A low red platform in an open field west of the Yellow Tower (3310, 1560), just south of the pink music area's radio station (3310, 1280) — map coordinates roughly 3400, 1230. Spot it from far away: a red stage with a chair, headphones dangling above, and six mic stands around the platform.

Official game screenshot — Big Walk's red stage puzzles share the same visual language as the sound check.

What's Actually Happening

The game never explains this one: the chair's headphones carry a live mix of all six mics, but only one is "live" per round. The tell is spatial — through the live mic your voice arrives dead-center and crystal clear in both ears at equal volume, while the other five mics come through muffled, quieter, or panned hard to one side (Steam players describe the same cue: the live one "snaps in dead center"). The listener finds it; the speakers press its button. A correct press fills the meter one notch; a wrong press wipes the meter and restarts the puzzle. The live mic changes every round.

Setup

• Flip the power switch beside the chair — a red light confirms it is live.
• The listener wears the headphones — real ones make this dramatically easier, as the left/right pan is the whole puzzle and room speakers flatten it.
• Before round one, agree on a test word ("test" is fine), a numbering order for the six mics, and a signal.
• Run a calibration lap: the speaker visits all six mics once, saying the test word at each, so the listener learns what "not live" sounds like.

Two-Player Solution

1. The speaker stands right at mic 1 and says the test word.
2. Muffled or one-sided means "not this one."
3. If not live, move to mic 2 and repeat, announcing each move so the listener stays oriented.
4. When the word snaps in dead-center and super clear, the listener signals.
5. The speaker presses that stand's button; the meter fills one notch.
6. Repeat. The live mic changes every round and each of the six mics rings true exactly once per run — never press a used mic.
7. When the meter tops out, the fixture opens and the reward appears.

Three and Four Players

• Three players: one listener, two speakers. The proven method: both speakers stand at the same mic and say the same word almost in unison. The live mic pipes both voices through dead-center; splitting to opposite mics leaves the listener unable to tell who is live.
• Four players: same doubling, or free a spotter — someone near the chair who watches the meter and confirms signals so the speakers never second-guess a press.
• Rotate the chair between rounds — some ears are better at the pan, and letting the most sensitive player take the final rounds ends the misery early.
• More bodies, more noise: anyone not testing stays quiet and off the stage.

Signaling That Works

• Arm-waving gets attention; one arm up means "getting close," both arms means "press it." Pointing at the stand is the most unambiguous signal.
• Numbered calls beat gestures at distance: "mic three!" A walkie-talkie (the yellow-frame radio items) lets the listener narrate the run and call the answer without anyone reading arms.
• Keep the test word and your voice identical every round. Groups that swap words or add accents mid-run find the listener second-guessing: "was that clearer, or just different?"
• Silence discipline: whoever is not testing is silent — including on Discord, which proximity chat is deliberately dragging you away from.

Common Mistakes

• Rushing the press — a wrong button wipes the meter to zero.
• Pressing a used mic — each mic fires once per run.
• Standing a few steps off the stand: the mics are proximity-based.
• Changing the test word between rounds.
• Listening through speakers instead of headphones — the pan is lost entirely.
• Treating "muffled but audible" as a hit. Muffled is the normal state for five of six mics; the live one snaps in dead-center.
• Background noise: radios broadcast island-wide, and a friend strolling up with a blaring one will ruin a round. The devs also patched launch-week audio bugs, so update the game if anything sounds wrong.

Reward

A red control-panel piece — one of five that slot into the Yellow Tower's roof. Collect all five and the tower's key appears; follow the five key cutters and it opens the Yellow Tunnel at 3500, 1620, hiding a secret area and the final radio channel.

Not the Other Microphone Puzzles

Three mic/chair puzzles get mixed up constantly, and they are all different:

• Red/White Dome Mic: no headphones, no meter. The sitter wears a headset and hears one specific mic; a walker tries each mic saying "Test." until it becomes super clear, then presses that button. Forgiving and quick.
• Green Seat Speaker: no listening at all. The sitter hears music from the chair; the partner walks across the island to the hidden radio station in the light-blue music area (3990, 1800); when they arrive, the sitter presses the button and the walker collects the red finger. A walking puzzle with an audio garnish.
• Yellow Tower Sound Check (this page): headphones, six mics, a meter and a full reset on error — the one that earned the name "Headphone Hell."

The red-and-white dome mic — related, but a different puzzle with no meter and no reset.

The green seat speaker — a walking puzzle with a music garnish, not a listening test.