Does the 13-inch mid-2013 Macbook Air have a noisier keyboard than previous models?
You are not alone. I have the same model and the keyboard is also noisy. Although I get it with both typing and just brushing over the keys. I believe this is by design because a lot of people like having that tactile feel of a mechanical keyboard. While they can't get that built into such a thin computer this is their way of replicating it. Hope this helps!