大家有冇覺得高清音效的人聲比較細聲?我一直都覺得同一volume下，DTS HD Master/DD TrueHD人聲比DTS/DD細。尋日睇隻Narnia -- Prince Caspian發覺差別更大，我要開到1/3 volume先聽清楚啲對白(但咁樣其他聲又過大)，但轉返條廣東話DD，1/4 volume已經好清楚。
avforums都有人開thread講呢個問題，都有一啲人覺得BD的dialogue係唔夠清析，而得出嚟的結論都係碟的問題，基本上解決方法就係扭大個volume。我平時睇啲砰砰膨膨嘅戲，扭-25dB我已覺得夠大聲，但好多時人聲就唔清(例如Transformer，Batman Dark Knight)，頭先扭去-20dB，人聲ok但整體上就有啲嘈。只係較大個center的output level，又變得唔夾聲........如果間屋大啲就可能解決到呢個問題。
Quoted:
If you have a passage of music that has loud and soft parts when you’re at high volumes, and then you lower the volume, the soft parts need more correction than the louder parts. So we had to invent a way of measuring perceived loudness in every channel, running in real time. And that’s what Dynamic EQ does. Every channel has its own loudness meter that looks at the content as its coming through and estimates—based on the signal and our human models—how a human will perceive it. So it makes minute adjustments, and of course it doesn’t just rapidly go up and down or you would notice it. We smooth it out.
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發表於 2009-6-22 23:47
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