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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.

Semantic Feedback Cues

The source files in this section were downloaded from their official Pixabay detail pages on 2026-07-22 and use the Pixabay Content License linked above.

Project file Role Pixabay title Creator Source
src/assets/audio/sfx/recovery-cue.mp3 Healing, supply, and terrain recovery feedback Holy Healing Spell Coghezzi https://pixabay.com/sound-effects/film-special-effects-holy-healing-spell-533279/
src/assets/audio/sfx/reward-reveal.mp3 Victory reward arrival feedback Reward Chime Universfield https://pixabay.com/sound-effects/film-special-effects-reward-chime-144757/
src/assets/audio/sfx/burn-tick.mp3 Batched burn-status damage feedback Electronic element burn spark 1 FxProSound https://pixabay.com/sound-effects/film-special-effects-electronic-element-burn-spark-1-248606/

All three cues were silence-trimmed, resampled to 48 kHz stereo MP3, fade-in/out processed, and high-pass and low-pass filtered. Recovery was reduced to approximately 1.9 seconds, reward reveal to 1.4 seconds, and burn damage to 0.7 seconds so feedback begins promptly and does not mask the next action.

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/