# Sound credits

Every clip here is CC0 1.0 (public domain dedication,
https://creativecommons.org/publicdomain/zero/1.0/). No attribution is required; it is given
anyway. Downloaded 2026-10-09, two more clips on 2026-10-11 from the same Impact Sounds and
Interface Sounds archives (same sha256), and on 2026-10-12 the carpet and peg-leg footsteps
from the same Impact Sounds archive plus the room tone and the flicker from two OpenGameArt
pages (the jiggyrooms sound slice); the licence text was read in each pack's `License.txt` or
in the licence field of its page. Each clip was converted to mono OGG Vorbis (stereo averaged, 44.1 kHz, quality 3, metadata
stripped) with ffmpeg. Clips were picked by name, length and measured loudness, not by ear: the
owner should listen to them.

`cues.ron` says which cue plays which file. A cue may play another cue's files (walking steps
play the running steps' files, quieter).

## Packs

| Pack | Author | Page | Archive sha256 |
|---|---|---|---|
| Impact Sounds 1.0 | Kenney | https://kenney.nl/assets/impact-sounds | `029d734af1582474edf3a694d1b0cebc97c1c152f2f39fa34d4c2bafc5de77f8` |
| RPG Audio | Kenney | https://kenney.nl/assets/rpg-audio | `6dbeaf8544da958d8f2adcb4a4a4b76c1ade34a05f8ab9edccd327da7375f38b` |
| Interface Sounds 1.0 | Kenney | https://kenney.nl/assets/interface-sounds | `f2193d072726d6758a5f7871b2dcc54dcce0d5c35c6f0a62f92549b327c81232` |
| UI Audio (UI SFX Set) | Kenney | https://kenney.nl/assets/ui-audio | `946fc23a63d535d693eb31b2eabb80c8c28d6351e2186b344ceb71b2cb1d5eb6` |
| Sci-Fi Sounds 1.0 | Kenney | https://kenney.nl/assets/sci-fi-sounds | `119340f351a5098ad814f78719438c0da355a9ce8a4c8a3af6a8d48aa3d49e04` |
| Swishes Sound Pack | artisticdude (OpenGameArt) | https://opengameart.org/content/swishes-sound-pack | `7980215241b739a787dcf26f660ce510bb237900968789395a86911619795693` |
| The Shop (free samples) | LEGIT Audio (OpenGameArt) | https://opengameart.org/content/the-shop | `87d49c4431fdf5647f3c434455b3bcd402fc757f97f2640b2ef84e2e5db9d86e` (`legit_audio_-_the_shop_free_sfx_wav.zip`); the page's licence field reads CC0 and its text "CC0 only applies to the free sounds provided via www.opengameart.org", which these are |
| Electric Buzz | themightyglider (OpenGameArt) | https://opengameart.org/content/electric-buzz | `4427905b12e7dbd35613a45ab3cf6b74b10816888db3446b3acbadbe36829dd8` (`buzz_0.ogg`, a single file); the page's licence field reads CC0, and its stated source, Freesound 394679 by soundtracvkradio, is marked Creative Commons 0 |

No Kenney pack has a weapon whoosh, so the swings come from the OpenGameArt pack, also CC0.

## Files

| File | Source pack | Source file |
|---|---|---|
| `survivor_run_step-1.ogg` | Impact Sounds | `footstep_carpet_000.ogg` (carpet since 2026-10-12; the pack's five carpet files hold three distinct recordings, `_001` = `_002` and `_003` = `_004`) |
| `survivor_run_step-2.ogg` | Impact Sounds | `footstep_carpet_001.ogg` |
| `survivor_run_step-3.ogg` | Impact Sounds | `footstep_carpet_003.ogg` |
| `killer_step-1.ogg` | Impact Sounds | `footstep_wood_000.ogg` (Clark's boot since 2026-10-12: the pack's heaviest soft footstep; no pack has a heavy carpet step) |
| `killer_step-2.ogg` | Impact Sounds | `footstep_wood_001.ogg` |
| `killer_step-3.ogg` | Impact Sounds | `footstep_wood_002.ogg` |
| `killer_step-4.ogg` | Impact Sounds | `footstep_wood_003.ogg` |
| `killer_peg_step-1.ogg` | Impact Sounds | `impactWood_light_002.ogg` (Clark's peg leg) |
| `killer_peg_step-2.ogg` | Impact Sounds | `impactWood_light_003.ogg` |
| `killer_peg_step-3.ogg` | Impact Sounds | `impactWood_light_004.ogg` |
| `light_hum-1.ogg` | The Shop | `TheShopCollection_convenience_store_drinks_fridge_drone_2.wav` (24-bit 96 kHz stereo, 13.54 s), rebuilt as a loop: split at its midpoint, the halves swapped, the original end crossfaded into the original start over 1.0 s (quarter-sine), so the loop starts and ends at the source's 6.771 s; 12.54 s, -19.5 LUFS |
| `light_flicker-1.ogg` | Electric Buzz | `buzz_0.ogg` (1.09 s) |
| `lunge_swing-1.ogg` | Swishes Sound Pack | `swish-7.wav` |
| `lunge_swing-2.ogg` | Swishes Sound Pack | `swish-9.wav` |
| `quick_attack-1.ogg` | Swishes Sound Pack | `swish-12.wav` |
| `quick_attack-2.ogg` | Swishes Sound Pack | `swish-13.wav` |
| `weapon_hit-1.ogg` | Impact Sounds | `impactPunch_heavy_000.ogg` |
| `weapon_hit-2.ogg` | Impact Sounds | `impactPunch_heavy_002.ogg` |
| `hit_sting-1.ogg` | Impact Sounds | `impactBell_heavy_001.ogg` |
| `weapon_wipe-1.ogg` | RPG Audio | `cloth1.ogg` |
| `weapon_wipe-2.ogg` | RPG Audio | `cloth2.ogg` |
| `swing_obstructed-1.ogg` | RPG Audio | `chop.ogg` |
| `swing_obstructed-2.ogg` | Impact Sounds | `impactWood_medium_004.ogg` |
| `body_fall-1.ogg` | Impact Sounds | `impactSoft_heavy_000.ogg` |
| `body_fall-2.ogg` | Impact Sounds | `impactSoft_heavy_003.ogg` (a second fall since 2026-10-12; the pack has no wetter or heavier body impact) |
| `fast_vault-1.ogg` | Impact Sounds | `impactWood_medium_000.ogg` |
| `fast_vault-2.ogg` | Impact Sounds | `impactWood_medium_001.ogg` |
| `slow_vault-1.ogg` | Impact Sounds | `impactWood_light_000.ogg` |
| `slow_vault-2.ogg` | Impact Sounds | `impactWood_light_001.ogg` |
| `killer_vault-1.ogg` | Impact Sounds | `impactWood_heavy_002.ogg` |
| `killer_vault-2.ogg` | Impact Sounds | `impactWood_heavy_003.ogg` |
| `pallet_vault_fast-1.ogg` | Impact Sounds | `impactPlank_medium_001.ogg` |
| `pallet_vault_fast-2.ogg` | Impact Sounds | `impactPlank_medium_002.ogg` |
| `pallet_drop-1.ogg` | Impact Sounds | `impactWood_heavy_000.ogg` |
| `pallet_drop-2.ogg` | Impact Sounds | `impactWood_heavy_001.ogg` |
| `pallet_stun-1.ogg` | Impact Sounds | `impactSoft_heavy_002.ogg` |
| `pallet_kick-1.ogg` | Impact Sounds | `impactPlank_medium_003.ogg` |
| `pallet_break-1.ogg` | Impact Sounds | `impactPlank_medium_000.ogg` |
| `window_blocked-1.ogg` | Sci-Fi Sounds | `forceField_000.ogg` |
| `countdown_tick-1.ogg` | Interface Sounds | `bong_001.ogg` (the start's bong since D53 slice 7) |
| `countdown_tick-2.ogg` | Interface Sounds | `tick_001.ogg` |
| `killer_released-1.ogg` | Interface Sounds | `maximize_002.ogg` |
| `chase_end-1.ogg` | Interface Sounds | `glass_001.ogg` |
| `match_over-1.ogg` | Interface Sounds | `confirmation_002.ogg` |
| `menu_select-1.ogg` | UI Audio | `click1.ogg` |
| `menu_ready-1.ogg` | Interface Sounds | `select_002.ogg` |

## HRIR sphere

`hrir/irc_1040_c.hrir` is not a sound clip and not CC0. It holds the head-related impulse
responses of subject 1040 (compensated set) of the IRCAM LISTEN HRTF database
(http://recherche.ircam.fr/equipes/salles/listen/), converted to a triangulated sphere by `hrir_sphere_builder` (Dmitry Stepanov, MIT,
https://github.com/mrDIMAS/hrir_sphere_builder, `hrtf_base/IRCAM/IRC_1040_C.bin`, downloaded
2026-10-13, sha256 `e480bbe498920e2dbc966620ecd15393385f2025654e39c62557845bce28df82`). The same
bytes ship in `firewheel-ircam-hrtf` 0.5.0 (MIT OR Apache-2.0) as its default subject.

LISTEN HRTF database: Copyright (c) 2002 IRCAM (Institut de Recherche et Coordination
Acoustique/Musique). All Rights Reserved. "The Listen database is public and available for any
use. We would however appreciate an acknowledgment of the database somewhere in the description
of your work (e.g. paper) or in your development." This section is that acknowledgment. The
notice is quoted from Debian's libmysofa copyright file (licence `listen-ircam`,
https://metadata.ftp-master.debian.org/changelogs//main/libm/libmysofa/libmysofa_0.6~dfsg0-3+deb10u1_copyright,
read 2026-10-13); IRCAM's LISTEN page did not load (outdated TLS). The owner accepted these
terms for public builds on 2026-10-13 (#99).

## Not found

No fluorescent-tube hum or neon buzz exists on OpenGameArt under CC0 (2026-10-12: "fluorescent",
"neon" and "flicker" return nothing under CC0 and Sound Effect; "hum" returns a voice clip; the
force-field and spaceship hums are CC BY). The fridge drone above is a real appliance room tone
and stands in; Kenney's Sci-Fi loops are mixed hot and none wraps cleanly. Freesound needs a
login to download and was not used.

No pack checked has a voice (grunts, screams, gasps): Kenney's Voiceover Pack and Voiceover
Pack (Fighter) hold announcer lines only. The voice cues in `cues.ron` are `Silent` until a CC0
voice turns up. A CC0 heartbeat exists (https://opengameart.org/content/heartbeat-sounds, bart,
CC0), but the terror radius is out of this slice (`docs/decisions.md` D43), so it is not here.