Rockpapershotgun recently uploaded a new article on advances in game sound. Specifically, the article features an overview of the new environment / atmosphere code described as pCARS. The bit of the article that interests me comes from Kevin Boland;
Sound is fun. Did you know that, based on your altitude and temperature, the density of air changes and thus how sound travels? I have all the code in for this. If you then factor in wind direction, we could have some pretty awesome stuff relating to sound. This actually came about because we needed to know the base temperatures for the tire modelling, which is again related to altitude of track, sun altitude, and then angle of refraction, giving the intensity of the sun for heat.
Read the full article here!