[Sound effect: Firework burst in night sky]
[Duration: 8 seconds]
[Description: A single firework launched into the night sky. Begins with a sharp, ascending whistle (rocket motor), rising in pitch. After a brief silence, a soft “thump” (launch tube echo in distance). Then a medium-loud, crisp explosion with a rich, rounded low-end thud, followed by a high-frequency crackling and sizzling spread (stars burning and falling). The crackle gradually fades, with occasional tiny pops as embers extinguish. Distant echoes of the explosion off buildings or mountains (subtle reverb tail). No other competing sounds.]
[Mood: Spectacular, festive, fleeting, beautiful]
[Texture: Whistle (rising pitch, mid-high) → launch thump (low, distant) → burst (low-mid punch) → crackle (high, granular) → sizzle (mid, descending) → echo reverb (wide)]
升空声用合成器制作快速上行滑音，加入少量空气摩擦噪声。
爆炸主音可用低音鼓加白噪声冲击，叠加短促的压缩，快速衰减。
绽放后的花火声可用多层小鞭炮声或粒状合成，随机分布，立体声像扩散。
消散阶段加入细微的嘶嘶声和轻微爆裂，模拟余烬。
混响采用大空间山谷或体育场预设，衰减时间2秒左右，增强空间感。
