# Gaadi chheeno sounds — provenance

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## Vehicle recordings

The stolen vehicles' engines and the carjack's foley, for `EngineAudio.setVoice` (car / auto loops,
pitched with rpm) and `footstep` / `doorCue` (`sfx.json` lists them by slot; doorOpen / doorSlam / step
are one-shots). All are real CC0 recordings from Freesound, played as recorded — only cut, mono and
level. Loaded only once we leave the truck (`prefetchVehicles()`).

| File | Source | Author | Licence | What it is |
|---|---|---|---|---|
| `car-0.mp3` | [269771 — "car idle"](https://freesound.org/people/seth-m/sounds/269771/) | seth-m | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/) | 2002 Mini Cooper 1.6 L inline-4 PETROL at warm idle, "loops seamlessly" (author). Short (2.2 s) and close-miked, very steady 28.6 Hz firing (~860 rpm). (loop 0.03–2.2 s; Gyan's pick 2026-10-06, A/B car B) |
| `auto-0.mp3` | [353664 — "Indian Auto rickshaw, start leave and approach"](https://freesound.org/people/Kriaa/sounds/353664/) | Kriaa | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/) | An Indian auto-rickshaw idling at the kerb before it leaves (exterior, Zoom H6; the 8 Hz "phat-phat" of a single cylinder). The most "desi auto" candidate on paper. (loop 86–94.56 s; Gyan's pick 2026-10-06, A/B auto A) |
| `doorOpen-0.mp3` | [465610 — "Vehicle_Car_Peugeot_106_Door_Open_Mono.wav"](https://freesound.org/people/Nox_Sound/sounds/465610/) | Nox_Sound | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/) | Peugeot 106 door opened: the handle / latch clack and the door swinging out. Short. (0.12–0.74 s; Gyan's pick 2026-10-06, A/B doorOpen A) |
| `doorSlam-0.mp3` | [424031 — "Car Door Slam"](https://freesound.org/people/mandymatz/sounds/424031/) | mandymatz | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/) | A 4-door Chrysler sedan door slammed shut: one short hard bang. (0.03–0.34 s; Gyan's pick 2026-10-06, A/B doorSlam C) |
| `step-0.mp3` | [637556 — "footsteps shoes walk road asphalt hard.flac"](https://freesound.org/people/kyles/sounds/637556/) | kyles | [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/) | A shoe on hard asphalt (one step out of a walk on the road). Quiet original (+17 dB). (3.14–3.42 s; Gyan's pick 2026-10-06, A/B step A) |

Licence checked on each sound's Freesound page (all show "Creative Commons 0") when the A/B set was
made (design/…-ab/README.txt; the A/B sets are local only, never shipped).

**Edits made** (`sox` + `lame`, from each sound's Freesound HQ preview MP3; no pitch, EQ or other
processing): a **shot** is cut out, downmixed to mono at 44.1 kHz, 5 ms fade-in / a short fade-out,
levelled (loudest 100 ms RMS → −14 dBFS, peak ≤ −1 dBFS), 96 kbps mono MP3. A **loop** is a steady
stretch cut out with its end nudged so the rhythm at the seam matches the start, the recording's next
0.05–0.5 s cross-faded (equal power) over the start, levelled (whole-loop RMS → −18 dBFS, peak ≤
−1 dBFS), 96 kbps mono MP3; the game crossfades the seam again (synth.buildSeamlessLoop).
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