Fart Symphony Conductor — Kilo Worst Captcha Challenge

An absurd captcha that forces users to replicate fart sounds into their microphone to prove they're human.

How It Works

1. A fart sound plays (synthesized via Web Audio API)
2. You replicate it into your mic — pitch, duration, and tone all count
3. Two rounds, three tries each. Pass both or get labeled a robot.

Features

• 6 configurable fart sound profiles (squeak, rumble, doubleTap, longTooter, sputter, machineGun)
• Real-time waveform visualization of target vs. your input
• Animated mascot that reacts to your performance
• Neobrutalist UI — thick black borders, bold flat colors, no rounded corners
• Microphone-based pitch detection via autocorrelation
• 40% pass threshold per round

Usage

Open index.html in Chrome. Microphone required.

Configuration

All config is at the top of the <script> block in index.html. Search for const <variable> to find each:

Variable	Default	Description
PASS_THRESHOLD	40	Minimum score to pass a round
TOTAL_ROUNDS	2	Number of rounds
MAX_TRIES	3	Attempts per round
RECORDING_DURATION	5000	Mic capture window in ms
ROUND_CONFIG	see below	Which fart profiles each round uses
FART_PROFILES	6 entries	All sound definitions (freq, duration, noise, etc.)

Swapping Farts

Edit ROUND_CONFIG to pick which farts appear in each round:

const ROUND_CONFIG = [
  ['squeak'],                    // Round 1
  ['doubleTap', 'longTooter'],   // Round 2
];

Available profiles: squeak, rumble, doubleTap, longTooter, sputter, machineGun

Adding a Round

1. Add an entry to ROUND_CONFIG
2. Increment TOTAL_ROUNDS
3. Add a mascot expression and label to MASCOT_EXPR and MASCOT_LABELS

Challenge Rules

• Must use Xiaomi Mimo-V2 Pro or Mimo-V2 Omni model
• Submit by Wed, Mar 25th 11:59 pm PST: Submit Here

Prizes

Place	Prize
1st	$250 Amazon + $500 Kilo Credits
2nd	$250 Kilo Credits
3rd	$150 Kilo Credits

Tech

Single HTML file. No frameworks, no build tools, no dependencies. Pure Web Audio API + CSS animations.