ISTANBUL KART — SOUND CREDITS
Downloaded 2026-09-16. No endorsement by the original creators is implied.

engine.wav
“racing car engine sound loops” / loop_0.wav by domasx2.
Source: https://opengameart.org/content/racing-car-engine-sound-loops
Download: https://opengameart.org/sites/default/files/loop_0.wav
License: CC0 1.0 — https://creativecommons.org/publicdomain/zero/1.0/
The author identifies the source recording as public domain and confirms the
replacement with a public-domain sample in the page's comments.
Changes: mono 22050 Hz PCM16 conversion, peak normalization, 20 ms loop crossfade.

 drift.wav
“Car tire squeal skid loop” — original recording by audible-edge (Tom Haigh),
loop edit/submission by qubodup.
Source: https://opengameart.org/content/car-tire-squeal-skid-loop
Original: https://www.freesound.org/people/audible-edge/sounds/71739/
Download: https://opengameart.org/sites/default/files/tires_squal_loop.wav
License: Creative Commons Attribution 3.0 Unported (CC BY 3.0)
https://creativecommons.org/licenses/by/3.0/
Changes for Istanbul Kart: mono 22050 Hz PCM16 conversion, peak normalization,
20 ms loop crossfade. Original loop was made from seconds 4–7 of the recording.
Retain this attribution and license link when redistributing this asset.

boost.wav, impact.wav
Kenney — Sci-Fi Sounds (1.0).
Source: https://kenney.nl/assets/sci-fi-sounds
Original files: Audio/thrusterFire_000.ogg, Audio/impactMetal_000.ogg.
License: CC0 1.0 — https://creativecommons.org/publicdomain/zero/1.0/
Original pack license: KENNEY-SCIFI-LICENSE.txt (alongside this file).
Changes: mono 22050 Hz PCM16, peak normalization; boost uses seconds 1–4 and a
20 ms loop crossfade. The thruster effect is repurposed as a nitro rush.

pickup.wav, countdown.wav, start.wav, finish.wav
Kenney — Interface Sounds (1.0).
Source: https://kenney.nl/assets/interface-sounds
Original files, respectively: Audio/confirmation_001.ogg, Audio/tick_001.ogg,
Audio/confirmation_002.ogg, Audio/confirmation_004.ogg.
License: CC0 1.0 — https://creativecommons.org/publicdomain/zero/1.0/
Original pack license: KENNEY-INTERFACE-LICENSE.txt (alongside this file).
Changes: mono 22050 Hz PCM16 conversion and peak normalization.
The pickup sample is also used at a higher playback rate for drift charge.