I am working on an animal vocalization study and I need a clarification about acoustic impedance. All of the sources I have gone to are a bit too technical for me, so if you would be so kind to answer my question I would be very grateful! My question is this: What happens to a sound in high impedance environments versus low impedance environments? For example, if a bird is utilizing the same call in a high elevation forest (with low impedance) will that sound degrade faster than it would in a low elevation (high impedance) forest? I know other factors are at play (humidity, temperature, attenuation) - however, in a perfect scenario, if other factors were the same, what specifically happens to a sound wave in high versus low acoustic impedance environments? To add to this, what would be the discernible difference to the human ear. Thank you so much. I really appreciate your help!