# audio/ 授权记录

规矩：**下载音频素材时当场记录曲名/URL**，事后无法反查。

## 基础 SFX（首批沿用）

批量下载时 metadata 被抹掉，无逐文件 URL。Mixkit License 为免费商用、
免署名，但**商用前建议逐个回查确认**。

| 文件名 | 来源 | 授权 |
|---|---|---|
| `click-camera.mp3` | Mixkit | Mixkit License |
| `impact-cine.mp3` | Mixkit | Mixkit License |
| `impact-transition.mp3` | Mixkit | Mixkit License |
| `keyboard.mp3` | Mixkit | Mixkit License |
| `pop.mp3` | 来源待考，商用前须确认 | 待考 |
| `riser-cine.mp3` | Mixkit | Mixkit License |
| `sparkle.mp3` | Mixkit | Mixkit License |
| `swoosh-quick.mp3` | Mixkit | Mixkit License |
| `transition-snap.mp3` | Mixkit | Mixkit License |
| `transition-soft.mp3` | Mixkit | Mixkit License |
| `typewriter.mp3` | 来源待考，商用前须确认 | 待考 |
| `whoosh-big.mp3` | Mixkit | Mixkit License |
| `whoosh-fast.mp3` | Mixkit | Mixkit License |

## 扩充 SFX（2026-07-19 下载，当场记录 URL）

全部 Mixkit Sound Effects Free License（免署名可商用）。

| 文件名 | 原名 | 授权 | URL |
|---|---|---|---|
| `air-zoom-vacuum.mp3` | Air zoom vacuum | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2608/2608-preview.mp3 |
| `bass-hit-futuristic.mp3` | Futuristic bass hit | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2303/2303-preview.mp3 |
| `bass-hit-short.mp3` | Short bass hit | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2299/2299-preview.mp3 |
| `bass-transition-pulse.mp3` | Pulsating bass transition | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2295/2295-preview.mp3 |
| `camera-shutter-hard.mp3` | Camera shutter hard click | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/1430/1430-preview.mp3 |
| `drum-hit-trailer.mp3` | Cinematic mystery trailer drum hit | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/546/546-preview.mp3 |
| `drum-impact-subtle.mp3` | Deep cinematic subtle drum impact | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/549/549-preview.mp3 |
| `drum-roll-tension.mp3` | Tension and suspense drum roll | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/577/577-preview.mp3 |
| `glitch-electric-small.mp3` | Small electric glitch | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2595/2595-preview.mp3 |
| `glitch-static.mp3` | Glitch static | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/1457/1457-preview.mp3 |
| `glitch-text-intro.mp3` | Intro text glitch | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2950/2950-preview.mp3 |
| `heartbeat-single.mp3` | Human single heart beat | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/490/490-preview.mp3 |
| `impact-deep-whoosh.mp3` | Cinematic whoosh deep impact | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/1143/1143-preview.mp3 |
| `impact-epic-trailer.mp3` | Movie trailer epic impact | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2908/2908-preview.mp3 |
| `impact-movie-intro.mp3` | Movie impact intro presentation | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2902/2902-preview.mp3 |
| `impact-zoom-quick.mp3` | Quick zoom impact | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/772/772-preview.mp3 |
| `reverse-impact.mp3` | Reverse cinematic impact trailer | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/784/784-preview.mp3 |
| `riser-drama.mp3` | Cinematic drama riser | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/632/632-preview.mp3 |
| `riser-synth.mp3` | Cinematic synth riser | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/645/645-preview.mp3 |
| `riser-tech-choir.mp3` | Tech choir cinematic riser | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/794/794-preview.mp3 |
| `riser-trailer.mp3` | Cinematic trailer riser | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/790/790-preview.mp3 |
| `shimmer-sparkle-sweep.mp3` | Sweeping sparkle presentation intro | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2633/2633-preview.mp3 |
| `sub-bass-knock.mp3` | Knocking sub bass | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2300/2300-preview.mp3 |
| `sweep-fast-small.mp3` | Fast small sweep transition | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/166/166-preview.mp3 |
| `sweep-metal-quick.mp3` | Quick metal transition sweep | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/2639/2639-preview.mp3 |
| `sweep-scifi-fast.mp3` | Fast sci fi transition sweep | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/3114/3114-preview.mp3 |
| `tick-percussion.mp3` | Percussion tick-tock timer | Mixkit SFX Free License | https://assets.mixkit.co/active_storage/sfx/1047/1047-preview.mp3 |

## bgm/（BGM 备选，Mixkit Stock Music Free License 免署名可商用）

| 文件名 | 原曲名 | 艺术家 | 风格 | BPM | URL |
|---|---|---|---|---|---|
| `bgm-tech-house.mp3` | （首批沿用，无法逐曲反查） | — | Tech House | ~124 | Mixkit，商用前复核 |
| `cat-walk.mp3` | Cat Walk | Arulo | House | ~129 | https://assets.mixkit.co/music/371/371.mp3 |
| `g-eazy-nba-type.mp3` | G Eazy NBA type | Arulo | Hip Hop | ~86 | https://assets.mixkit.co/music/403/403.mp3 |
| `house-vibez.mp3` | House Vibez | Lily J | House | ~123 | https://assets.mixkit.co/music/745/745.mp3 |
| `tonight-hiphop.mp3` | Tonight | Michael Ramir C. | Hip Hop | ~103 | https://assets.mixkit.co/music/841/841.mp3 |

BPM 为 librosa 实测（beat grid 最小二乘拟合法，见 references/music-beat-sync.md）。