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Message: <blockquote data-quote="Norfleet" data-source="post: 870882" data-attributes="member: 11581">The DC for the noticing the silence is roughly equivalent to the DC for detecting the noise that the silence suppresses, plus a modifier if the noise is highly expected to be there, such as a computer fan and HDDs suddenly going silent. Of course, if the listener could not hear the sound before, then the sound isn't going missing, and therefore, the listener has no reason to suspect anything is wrong on those grounds.For example, hearing loud voices in a tavern has probably a DC of -5. If the tavern is suddenly silenced, noticing this should therefore similarly be DC -5.Hearing a first-level thief moving silently has a DC of about 15. If the listener did not previously hear the thief, then he has no reason to suspect anything is wrong, and does not notice the silence because of this. If, on the other hand, the listener heard the thief and was listening to him at the time the silence occurred, it should similarly be DC 15 to notice the now totally silent thief.Hearing a computer fan probably has a DC of about 5-10, depending on the noisiness of the fan. The uninitiated would therefore be only moderately likely to note the lack of fan, but somebody who expects the fan to be there and would instinctively interpret the lack of a fan as an emergency situation would have a heavy circumstance modifier to notice the missing fan.In short, the harder it is to notice the sound in the first place, the harder it should be to notice that it is now missing. The more accustomed the listener is to hearing the sound, the more likely he is to notice the sound is missing.</blockquote>

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