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Sound credits
The demo's recordings, in demo/sounds/, and where each came from. Every one is CC0 1.0 or in the public domain: no credit is owed, and it is given anyway. None is CC BY-NC or CC BY-ND, none is taken from a broadcast, and none is a team's goal song, horn or chant. The npm package ships none of them: its sound is made in the browser, and a page gives recordings of its own if it wants them.
Each was read on its licence page first (the Wikimedia Commons file page, and the Freesound page it came from where it came from one). scripts/sounds.data.json holds the same list with the part of each raw file that is used; pnpm sounds:fetch fetches the raw files into data-sources/sounds/raw/ (left out of git) and pnpm sounds makes the demo's files from them: cut, high-passed at 80 Hz, one channel, brought to one loudness, a loop's end crossfaded into its start, and written as Ogg Opus and as AAC (.m4a) for a browser that cannot decode Opus.
| File | What it is | Made by | Licence | Read on |
|---|---|---|---|---|
murmur | About a thousand people talking, with almost no word that can be made out: the bed's murmur. 8 s loop. | eguobyte | CC0 1.0 | Commons, Freesound |
applause | A hall's applause, steady: the bed's applause and the applause of a point. 6 s loop. | Amada44 | CC0 1.0 | Commons |
water | An indoor pool's hall: water and voices far off, ringing. The pool's bed. 8 s loop. | stephan (pdsounds.org) | Public domain | Commons |
whistle | A referee's whistle in a gym: the whistle of a stoppage, and three of it at the end of a game. 1.2 s. | SpliceSound | CC0 1.0 | Commons, Freesound |
bell | A boxing bell struck three times: a round's start and end. 1.7 s. | IOII-IOIO-IIOI | CC0 1.0 | Commons |
ooh | A few people going "ooh": a near miss. 2.5 s. | starlite (pdsounds.org) | Public domain | Commons |
cheer | A few people cheering: a point in a quiet hall. 3.1 s. | starlite (pdsounds.org) | Public domain | Commons |
Made in the browser and in no file: the goal horn (one chord held, never a tune), the buzzer, the starting gun, a swimming start's beep, the crowd's roar and its swell at a goal, and the building's air. Each is in src/sound.synth.ts.
What a sport loads#
A sport loads only the files its venue's bed and its cues use, and only after its sound is turned on. The most any sport loads is under 110 kB as Opus and under 190 kB as AAC; a test (src/sound.files.test.js) holds every sport's set under 160 kB and 250 kB.