What does using a [sonic] spell do for Perception DCs to hear?

[Cheapy]

Would that be an unfavorable condition or Terrible?

[BigNorseWolf]

Cheapy wrote:

Would that be an unfavorable condition or Terrible?

Depends on what the other sound is.

If someone uses sound burst to cover up a rogue sneaking around i would say it does nothing: the boom lasts a second the rogue is creeping around for six.

If on the other hand say, an assassin gunslinger times their gun shot to go off with the bard's sound i would apply whatever penalty was required to make the DC relevant for your PC's die rolls to matter (based on level)

[Caedwyr]

For sound burst, could it be done as a sub-sonic, or ultrasonic frequency making it below or above the normal range of hearing for humans, but still capable of affecting things?

[Morgen]

I'd say it'd be the same DC as hearing combat happening. So base DC of -10.