fix(backend): #1897 声音克隆preview接口支持情绪语速参数 #1907
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merged 1 commits from 2026-09-14 18:56:53 +08:00
fix/1897-voice-clone-preview-emotion-speed-backend into develop
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 saas-backend-agent
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ef54a1ce9c |
fix(backend): #1897 声音克隆preview接口支持情绪语速参数
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- apps/api/app/api/routes/voice_clones.py: GET /voice-clones/{clone_id}/preview 新增 speed(float, 0.5-2.0, 默认1.0) 和 emotion(str, 默认空, 枚举 natural/excited/calm/friendly) query 参数
- 参数透传到 cosyvoice.synthesize_speech(speed=..., emotion=...)，CosyVoice 服务层已原生支持无需改动
- emotion 白名单校验：不在 natural/excited/calm/friendly/空 范围返回 400
- 缓存仅在默认参数（默认试听文本+speed=1.0+emotion空）时生效，自定义 speed/emotion 不缓存
- 新增 ValueError 异常处理（speed 越界等参数问题 cosyvoice 抛 ValueError），返回 400（与 TTS preview 接口一致）
- 参考 TTS preview 接口（apps/api/app/api/routes/tts.py）的参数接收与透传方式
- 单测：4 个新用例覆盖 speed/emotion 透传、非法 emotion 400、非默认参数不缓存、ValueError→400，293个voice clone/cosyvoice相关测试全通过
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