We take our french bulldogs on trips all the time, noise has never
bothered them, they sleep most of the trip, went to california yesterday
with them as the most recent trip.

wrote:

Does anyone know how to find the location in the cabin where the sound
levels are the least bothersome for dogs? I'm assuming it's center aft
(I have a 4-place plane) but don't know if that's correct. Maybe on
the floor? And what frequency range is most bothersome for them?