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heros_web/docs/audio-sources.md

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Audio Sources

Downloaded from Pixabay on 2026-06-22, 2026-07-21, and 2026-07-22 and used under the Pixabay Content License.

License reference: https://pixabay.com/service/license-summary/

Background Music

Project file Pixabay title Creator Source
src/assets/audio/bgm/title-theme.mp3 Chinese ancient music, World, Ethnic music ET11LX https://pixabay.com/music/china-chinese-ancient-style-music-love-et11lx-%E5%8F%A4%E9%A3%8E-%E6%8A%92%E6%83%85-%E8%AF%86-155926/
src/assets/audio/bgm/story-dark.mp3 Chinese, Asia, China music Reklamistrz https://pixabay.com/music/meditationspiritual-ancient-chinese-dali-448882/
src/assets/audio/bgm/oath-theme.mp3 Chinese ancient style, Ancient style, World music ET11LX https://pixabay.com/music/world-chinese-ancient-style-music-love-et%E5%8D%81%E4%B8%80lx-%E5%8F%A4%E9%A3%8E-%E6%8A%92%E6%83%85-%E8%AF%86%E4%B8%B0%E5%AF%8C%E9%85%8D%E5%99%A8%E6%8E%A8%E9%AB%98%E6%BD%AE%E7%89%88-247345/
src/assets/audio/bgm/militia-theme.mp3 Orchestra, Heroic, Warrior music NR-Music https://pixabay.com/music/adventure-short-heroic-orchestral-loop-541095/
src/assets/audio/bgm/battle-prep.mp3 Epic orchestral, War, Orchestral music Sonican https://pixabay.com/music/main-title-epic-for-war-orchestral-loop-364200/

Project-original Camp Soundscapes

The following files are generated deterministically by scripts/generate-camp-audio.mjs. They use only synthesized oscillators and seeded procedural noise; no external samples or copyrighted recordings are included.

Project file Role
src/assets/audio/bgm/camp-rally.mp3 Yellow Turban and anti-Dong Zhuo camp resolve theme
src/assets/audio/bgm/camp-wayfarer.mp3 Xuzhou, wandering, and Wolong camp theme
src/assets/audio/bgm/camp-grand-strategy.mp3 Red Cliffs through Yiling grand-strategy camp theme
src/assets/audio/bgm/camp-frontier.mp3 Nanzhong and Northern Expeditions frontier camp theme
src/assets/audio/ambience/campfire-ambience.mp3 Campfire bed for early and wandering camps
src/assets/audio/ambience/river-night-ambience.mp3 River-night bed for Red Cliffs, Jingzhou, and Yiling camps
src/assets/audio/ambience/mountain-wind-ambience.mp3 Mountain-wind bed for Wolong, Hanzhong, and Northern camps
src/assets/audio/ambience/nanzhong-night-ambience.mp3 Forest-night bed for Nanzhong camps

Battlefield Ambience and Tactical Cues

The source files in this section were downloaded from their official Pixabay detail pages on 2026-07-21. They use the Pixabay Content License linked above.

Project file Role Pixabay title Creator Source
src/assets/audio/ambience/battle-rain.mp3 Seamless battlefield rain bed Gentle Midday Rain DRAGON-STUDIO https://pixabay.com/sound-effects/nature-gentle-midday-rain-499668/
src/assets/audio/ambience/battle-fire.mp3 Seamless battlefield fire bed Fire Sounds DRAGON-STUDIO https://pixabay.com/sound-effects/film-special-effects-fire-sounds-405444/
src/assets/audio/sfx/ally-turn.mp3 Brighter two-beat allied turn cue Ancient War Drums DRAGON-STUDIO https://pixabay.com/sound-effects/musical-ancient-war-drums-463214/
src/assets/audio/sfx/enemy-turn.mp3 Lower, slower enemy turn cue Ancient War Drums DRAGON-STUDIO https://pixabay.com/sound-effects/musical-ancient-war-drums-463214/
src/assets/audio/sfx/operation-alert.mp3 Faster tactical event alert Ancient War Drums DRAGON-STUDIO https://pixabay.com/sound-effects/musical-ancient-war-drums-463214/
src/assets/audio/sfx/objective-success.mp3 Objective achieved signal Level Complete Universfield https://pixabay.com/sound-effects/film-special-effects-level-complete-143022/
src/assets/audio/sfx/objective-failure.mp3 Objective failed signal failure 1 Leszek_Szary (Freesound) https://pixabay.com/sound-effects/film-special-effects-failure-1-89170/

All seven files were resampled to 48 kHz stereo MP3. Tactical cues were silence-trimmed, equalized by role, and balanced to approximately -17.5 to -19 LUFS. The rain and fire recordings were reduced to stable excerpts, balanced near -25 LUFS, and rebuilt with a one-second end-to-start crossfade so repeated playback does not introduce a hard seam.

Narrative Interface Cues

The source file in this section was downloaded from its official Pixabay detail page on 2026-07-22 and uses the Pixabay Content License linked above.

Project file Role Pixabay title Creator Source
src/assets/audio/sfx/story-page-turn.mp3 Story page advance feedback Flipping Book Page DRAGON-STUDIO https://pixabay.com/sound-effects/film-special-effects-flipping-book-page-499646/

The narrative cue was resampled to 48 kHz stereo MP3, silence-trimmed to an approximately 1.0-second excerpt, fade-in/out processed, and high-pass and low-pass filtered for unobtrusive playback over story music.

Sound Effects

Project file Pixabay title Creator Source
src/assets/audio/sfx/ui-select.mp3 Ui, Click, Retro sound effect SoundShelfStudio https://pixabay.com/sound-effects/film-special-effects-ui-click-retro-514601/
src/assets/audio/sfx/sword-slash.mp3 Sword, Slash, Swing sound effect DavidDumaisAudio https://pixabay.com/sound-effects/film-special-effects-sword-slash-and-swing-185432/
src/assets/audio/sfx/sword-swing-variant.mp3 Video game Sword swing SFX OxidVideos https://pixabay.com/sound-effects/film-special-effects-video-game-sword-swing-sfx-409364/
src/assets/audio/sfx/combat-impact.mp3 Sword, Slash, Weapon sound effect DavidDumaisAudio https://pixabay.com/sound-effects/film-special-effects-sword-slash-with-metal-shield-impact-185433/
src/assets/audio/sfx/armor-impact.mp3 Armor Impact from Sword DRAGON-STUDIO https://pixabay.com/sound-effects/film-special-effects-armor-impact-from-sword-393843/
src/assets/audio/sfx/shield-block.mp3 Shield Block Shortsword SectionSound https://pixabay.com/sound-effects/film-special-effects-shield-block-shortsword-143940/
src/assets/audio/sfx/bow-release.mp3 Bow Release (Bow and Arrow) 4 Ali_6868 (Freesound) https://pixabay.com/sound-effects/film-special-effects-bow-release-bow-and-arrow-4-101936/
src/assets/audio/sfx/arrow-swish.mp3 Arrow Swish_03 DJARTMUSIC https://pixabay.com/sound-effects/film-special-effects-arrow-swish-03-306040/
src/assets/audio/sfx/arrow-body-impact.mp3 Arrow Body Impact DennisH18 https://pixabay.com/sound-effects/film-special-effects-arrow-body-impact-146419/
src/assets/audio/sfx/arrow-wood-impact.mp3 Arrow Wood Impact DennisH18 https://pixabay.com/sound-effects/film-special-effects-arrow-wood-impact-146418/
src/assets/audio/sfx/critical-impact.mp3 Combat Impact Universfield https://pixabay.com/sound-effects/film-special-effects-combat-impact-352458/
src/assets/audio/sfx/critical-boom.mp3 Cinematic Impact Boom 05 Universfield https://pixabay.com/sound-effects/film-special-effects-cinematic-impact-boom-05-352465/
src/assets/audio/sfx/strategy-cast.mp3 Designed, Magic spell, Projectile sound effect RescopicSound https://pixabay.com/sound-effects/film-special-effects-elemental-magic-spell-impact-outgoing-228342/
src/assets/audio/sfx/cart-roll.mp3 Cart, Wheel, Cobblestones sound effect Fronbondi_Skegs https://pixabay.com/sound-effects/film-special-effects-foley-heavily-laden-cart-moving-over-cobblestones-sound-effect-246657/
src/assets/audio/sfx/exp-gain.mp3 Level up, Level up sound, Game level up sound effect Universfield https://pixabay.com/sound-effects/film-special-effects-level-up-06-370051/
src/assets/audio/sfx/footstep-walk.mp3 Walking, Grass, Footsteps sound effect vgraham1 (Freesound) https://pixabay.com/sound-effects/film-special-effects-walking-through-grass-80308/
src/assets/audio/sfx/horse-gallop.mp3 Horse, Galloping, Horse sound sound effect DRAGON-STUDIO https://pixabay.com/sound-effects/nature-horse-gallop-sfx-339736/