UI Sounds

Success, error, notify, coin — as a downloadable pack.

audio.bleep · v1 · renderer audio

0:00 / 0:00

1. success starts 0.05 s · 285 ms · three steps up a triad 2. error starts 0.79 s · 281 ms · two notes down 5 semitones, with a detuned second 3. notify starts 1.52 s · 518 ms · FM bell, ratio 2.76, with a fifth above 4. coin starts 2.48 s · 330 ms · flick up 9 semitones, square, held 5. success starts 3.26 s · 285 ms · three steps up a triad 6. error starts 4.00 s · 281 ms · two notes down 3 semitones, with a detuned second

One buffer, several sounds, silence in between — download it once and cut at the offsets above. Nothing here plays on its own: the first sound you hear is one you asked for.

[data-audio-stage] { display: none; }

Synthesised in the browser

No audio file crosses the wire. The server sends a score — the events, envelopes and synthesis parameters below, plus a 32-byte key — and the samples are made here, from the same byte stream the server would have used. A four-minute piece is about two kilobytes of JSON. That needs JavaScript, so with it switched off there is nothing to play.

The score itself is still public: /api/v1/g/audio.bleep returns it, and the synthesis is in resources/js/audio.

Controls · from schema()

Seed receipt

Class A · Cryptographic

Atmospheric radio noise, sampled in Dublin moments ago.

source: RANDOM.ORG
observed: 2026-10-30T11:14:57+00:00
latency: 211ms
mixed with: csprng — always

https://www.random.org/randomness/ ↗

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The token is the seed, so this link recomputes the result rather than looking it up. No database, and it works for as long as v1 does.

This page and /api/v1/g/audio.bleep run the same code. There is no private endpoint.

UI Sounds

Result

Measurements

Seed receipt

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