Of testing the sounds and tweaking them to different markets. because it turns out, different countries have different ideas of what good quality sounds like. in europe, we attribute quality with a more sort of solid feel, sort of more like a low—frequency content, like a solid closing of an oak door is a good—quality sound. injapan, they tend to be slightly more biased towards higher—frequency sounds, and that's more because that's where their language operates. like the motorcycle engine's higher revving, turbo—charged engines would be a high—quality sound, so there's different tas...