Unverified78% confidenceDecision RuleTime unknown
定时关机功能应确认支持渐弱(fade-out)而非硬切，硬切断声易在安静中惊醒浅眠者，优质机型提供15/30/60分钟并渐弱
1
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78%
Confidence
Long-term
Relevance
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Unverified定时关机建议选支持15/30/60/90分钟多档且带渐弱淡出（fade-out）的机型，突然断音容易惊醒浅眠者，渐弱设计能平滑过渡到无声90% similarUnverified定时关机功能应确认支持渐弱（fade out）关闭而非骤停，突然断声反而可能惊醒浅睡者；同时优选可设定多档时长（如30/60/90分钟）的机型90% similarUnverified定时功能必须支持'渐弱关闭'(fade out)而非硬切断，硬切断在入睡临界点会因声音突然消失把人惊醒，优先选带30-60分钟渐弱定时的机型90% similarUnverified定时关机功能应确认是否带渐弱淡出（fade out），突然断音容易惊醒浅眠者；优质机型提供15/30/60/90分钟或持续整晚多档选择89% similarUnverified定时关闭功能应支持'渐弱淡出'（fade-out）而非硬性断电，突然静音会因'静默反差'把已入睡者唤醒；选购时确认是否有淡出功能且时长可调（理想15-30分钟渐弱）89% similar
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